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1
Parasakthibala, Ms G., and Mrs A. S. Monisha. "A Review on Natural Fibers; Its Properties and Application Over Synthetic Fibers." International Journal for Research in Applied Science and Engineering Technology 10, no. 8 (August 31, 2022): 1894–97. http://dx.doi.org/10.22214/ijraset.2022.46530.
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Abstract: Fibre is a long, thin strand or thread of material made by weaving or knitting threads together. Fibre is a hair like strand of material. A fibre is the smallest visible unit of any textile product. Fibres are flexible and may be spun into yarn and made into fabric. Natural fibres are taken from animals, vegetables or mineral sources. A few examples of widely used natural fibres include animal fibre such as wool and silk vegetables fibres, especially cotton and flax and asbestos, a mineral. Natural fibers are more important part in our human environment. Natural fibers are ecofriendly and inexpensive which are readily available in nature. In this chapter we discuss about the overview of natural fiber and their characteristic. this paper also deals with the impact of natural fibers over the synthetic fibers and also the application of natural fiber in various fields.
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Darne, E., and K. Louche. "Le Lignon retrouve son cours naturel (Haute-Loire)." Techniques Sciences Méthodes, no. 10 (October 2019): 39–46. http://dx.doi.org/10.1051/tsm/201910039.
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L’action, conduite à Fay-sur-Lignon en Haute-Loire, a permis au Lignon de retrouver son lit d’origine et de nouvelles fonctionnalités. Situé en tête du bassin versant du Lignon du Velay, un plan d’eau avait été créé sur une ancienne zone humide en barrant la rivière. À la suite d’une destruction par une crue centennale, il a été reconstruit à la même place, mais le Lignon a été détourné de son tracé naturel. Cette mise en dérivation du Lignon a entraîné un déséquilibre morphodynamique tandis que la présence du plan d’eau générait plusieurs perturbations sur les milieux : perte d’habitats naturels, impact sur la qualité et le réchauffement de l’eau, limitation du rôle de soutien d’étiage et d’expansion de crue, perturbation de la continuité écologique. Le plan d’eau avait, par ailleurs, un attrait et un usage limité, bien que ce soit le développement touristique local qui ait motivé initialement sa création. Pour réduire ces perturbations ainsi qu’un risque de rupture d’une digue, un projet de réhabilitation du Lignon dans son lit historique a été étudié puis mis en œuvre par le Sicala de Haute-Loire (Syndicat d’aménagement de la Loire et ses affluents). Grâce à l’engagement des acteurs locaux, ce plan d’eau a pu être effacé et le Lignon a pu retrouver le cours qu’il empruntait 45 ans plus tôt à quelques ajustements près. Le projet a ainsi permis d’ouvrir un nouvel espace de liberté pour la rivière, favorable à la restauration d’une zone alluviale et de milieux associés, et à la recolonisation par les espèces emblématiques de cette tête de bassin (Salmo trutta Linneaus, 1758, Castor fiber Linnaeus, 1758). Dans un esprit de développement durable, le site réhabilité servira aussi d’espace récréatif pour l’accueil du public tout en préservant les écosystèmes et les zones refuges pour la biodiversité.
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K V, Ambareesh. "Moisture Absorption Studies of COIR and Sisal Short Fiber Reinforced Polymer Composites." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (September 30, 2021): 116–27. http://dx.doi.org/10.22214/ijraset.2021.37928.
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Abstract: Easy availability of natural fibre, low cost and ease of manufacturing have urged the attention of researchers towards the possibility of reinforcement of natural fiber to improve their mechanical properties and study the extent to which they satisfy the required specifications of good reinforced polymer composite for industrial and structural applications. Polymer composites made of natural fiber is susceptible for moisture. Moisture absorption in such composites mainly because of hydrophilic nature of natural fibers. Water uptake of natural fiber reinforced composites has an effect on different. Lot of researchers prepared the natural fiber reinforced composites without conducting water absorption tests; hence it is the potential area to investigate the behavior of the composites with different moisture absorption. In this research the experimental sequence and the materials are used for the study of coir and Sisal short fiber reinforced epoxy matrix composites. The coir and Sisal short fibers are made into the short fibers with 10 mm x 10 mm x 5 mm size. The Epoxy Resin-LY556(Di glycidyl ether of bi phenol) and Hardner-HYD951 (Tetra mine), the water absorption behaviors are analyzed in the coir and Sisal short fibers reinforced epoxy composites. The water absorption behaviors of the epoxy composites reinforced with the coir and sisal short fibers with 25, 30 and 35wt% were analyzed at three different water environments, such as sea water, distilled water, and tap water for 12 days at room temperature. It was observed that the composites show the high level of the water absorption percentage at sea water immersion as compared to the other water environments. Due to the water absorption, the mechanical properties of macro particle/epoxy composites were decreased at all weight percentages. Keywords: Natural fibre, Moisture absorption, Coir and sisal short fibre, Reinforced polymer composites, Water absorption behaviour Polymer matrix composite (Epoxy resin) using Coir and sisal short fibre and to study its moisture absorption behaviour
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Zaleha, M., M. Shahruddin, and I. Maizlinda Izwana. "A Review on the Mechanical and Physical Properties of Natural Fiber Composites." Applied Mechanics and Materials 229-231 (November 2012): 276–81. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.276.
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Research on the use of natural fibers as replacement to man-made fibre in fiber reinforced composites have received more interest and opened up further industrial possibilities. Natural fibre presents many advantages compared to synthetic fibers which make them attractive as reinforcements in composite material. They come from abundant and renewable resources, which ensures a continuous fibre supply and a significant material cost saving to the plastics, automotive and packaging industries. The paper reviews the previous and current research works published in the field of natural fiber reinforced composite material with special reference in mechanical properties of the natural fiber reinforced composite.
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Hayette, Faid, Abadou Yacine, and Ghrieb Abderrahmane. "Bio-waste influence on air lime mortar performance corrosion – optimization using the surface response method." Journal of Engineering, Design and Technology 19, no. 5 (June 15, 2021): 1124–37. http://dx.doi.org/10.1108/jedt-05-2020-0174.
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Purpose The purpose of this paper is to characterize the properties lightweight green air lime and marble waste mixtures, relating microstructural and chemical properties with physical development of the material, an effort has been made to simulate the structure of the different mortar reinforced by two main layers plants. Design/methodology/approach This paper presents an experimental design of response surface methodology, a model which predicts the mechanical strength and evaluate the effectiveness of bio-waste as a corrosion inhibitor to resist the steel corrosion in air lime mortars as a function of the proportion of the constituents of a new air lime mortar based on a combination of different percentages of marble waste (MRW), air lime and deferent type, layers of natural fiber reinforcement. Luffa sponge gourd and oakum hemp fiber residues capabilities in civil engineering are evaluated by combining numerical and experimental approaches for repair mortar based on air lime and marble waste. Several electrochemical techniques, mechanical strength tests and visual inspection of steel surface were performed. Findings The results revealed good mechanical strength and corrosion protection properties of air lime mortar containing the fiber naturel. These green wastes are considered economically feasible, as well having possessing good performance efficiency in protecting rebar reinforcement. These results were confirmed via polarization curves and electrochemical impedance spectroscopy measurements. Originality/value The prepared green air lime mortar provided good corrosion protection to the rebar. The significance of this study is to encourage the usage of solid white marble waste to prepare biomass-based repair mortar with good mechanical and anti-corrosion properties on the long term is still a big challenge.
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Khalid, S. N. A., Al Emran Ismail, and Muhd Hafeez Zainulabidin. "A Review on Effect of Orientation Fabric on Mechanical Energy Absorption Natural Fibres Reinforced Composites." Applied Mechanics and Materials 773-774 (July 2015): 134–38. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.134.
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This paper presents the combination technique in developing the woven kenaf fiber that is used as a new method to improve energy absorption performance. This method focuses on the effect energy absorption of angle orientation. Due to the low density, natural fiber such as kenaf fiber provides comparatively good mechanical properties. Thus, natural fibers have high potential for better reinforcement in light weight structures on automotive applications. Total force, total energy, and energy absorption of natural fibre reinforced composite for different type’s natural fibre and angle orientation are discussed and reviewed.
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Okfrianti, Yenni, Catur Herison, Fahrurrozi Fahrurrozi, and Budiyanto Budiyanto. "The Potencial of Bamboo Shoot for Health." AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian 8, no. 2 (December 8, 2021): 114–22. http://dx.doi.org/10.37676/agritepa.v8i2.1471.
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Bamboo is naturel mixture because it can survive in many habitats and belongs to the order of angiosperms monocots. There are around 1200 – 1500 species of bamboo in the world that grow in hilly areas but do not grow in alkaline, desert and rice fields. Bamboo shoots can be processed into food and even herbal and traditional medicines. Bamboo shoots are a sourece of fiber that can be used as a nutraceutical. Bamboo shoots contain as much as 2.23 – 4.20 gfiber in 100 wet weights in the form of flour, thin slices and capsules. Dendrocalamus asper bamboo shoot flour, Bambusa tuldoides and Bambusa vulgaris with air content < 10 g /100, protein, lipid and ash content< 3 g /100 g and can obtain mineral content > 60 g /100g. Bamboo shoots are a good source of dietary fiber. This review supports the increasing benefits of bamboo shoots in the supports the increasing benefit in the health world to prevent an increase in blood sugar, as antihypertention, and antihyperuresemia. Bamboo shoots can be processed into fermented products containing Lactid Acid Bacteria (BAL) which are beneficial for intestinal microflora which are recommended as probiotics.
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KUMAR, SANDEEP. "A Review on Natural Fiber Reinforced Composites and its Applications." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (August 31, 2021): 1917–21. http://dx.doi.org/10.22214/ijraset.2021.37654.
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Abstract: Natural fibers are gaining numerous attention due to their ecofriendly nature and sustainability. The problem of global warming and environmental imbalance is being faced throughout the world which needs to be resolved. The aim of this review paper is to give a comprehensive review about the natural fiber reinforced composites and its applications. It also explains about the various surface treatments and which are applied to the natural fibers and their effects on these fibers. The properties of natural fibers vary on various factor such as fiber type, fiber size, orientation, and its structure. Being various advantages of natural fiber reinforced composites there are some disadvantages also which are high moisture absorption, lower mechanical properties and lower fire resistance which limits the applications of natural fiber reinforced composites. Keywords: Natural fibers, composite materials, properties, applications.
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Raghu, M. J., and Govardhan Goud. "Tribological Properties of Calotropis Procera Natural Fiber Reinforced Hybrid Epoxy Composites." Applied Mechanics and Materials 895 (November 2019): 45–51. http://dx.doi.org/10.4028/www.scientific.net/amm.895.45.
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Natural fibers are widely used for reinforcement in polymer composite materials and proved to be effectively replacing synthetic fiber reinforced polymer composites to some extent in applications like domestic, automotive and lower end aerospace parts. The natural fiber reinforced composites are environment friendly, have high strength to weight ratio as well as specific strengths comparable with synthetic glass fiber reinforced composites. In the present work, hybrid epoxy composites were fabricated using calotropis procera and glass fibers as reinforcement by hand lay-up method. The fibre reinforcement in epoxy matrix was maintained at 20 wt%. In 20 wt% reinforcement of fibre, the content of calotropis procera and glass fibre were varied from 5, 10, 15 and 20 wt%. The dry sliding wear test as per ASTM G99 and three body abrasive wear test as per ASTM G65 were conducted to find the tribological properties by varying speed, load, distance and abrasive size. The hybrid composite having 5 wt% calotropis procera and 15 wt% glass fibre showed less wear loss in hybrid composites both in sliding wear test as well as in abrasive wear test which is comparable with 20 wt% glass fibre reinforced epoxy composite which marked very low wear loss. The SEM analysis was carried out to study the worn out surfaces of dry sliding wear test and three body abrasive wear test specimens.
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Bondarev, B. A., N. N. Chernousov, R. N. Chernousov, and V. A. Sturova. "EXPERIMENTAL STUDY OF THE NATURE OF INTERACTION OF STEEL FIBRES EQUIDIRECTIONALLY LOCATED IN PARALLEL TO FORCE IN FINE-GRAINED SLAG CONCRETE." Proceedings of the Southwest State University 21, no. 2 (April 28, 2017): 72–82. http://dx.doi.org/10.21869/2223-1560-2017-21-2-72-82.
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At present, the use of modern technologies is becoming more urgent. This concerns both construction engineering and structural design standards. There is a need for a wider use of computer technology, which will allow solving multifactorial tasks taking into account actual stress-strain state of structures at all the stages of their operation with the help of a nonlinear deformation model in the future. The objective of this work is to study the nature of the interaction of steel fibers equidirectionally located in parallel to force in fine-grained slag concrete, in particular, to determine the coefficient characterizing the change in the contribution to the work of the fibre reinforcement unit depending on the length of the adjacent fibers embedment in the slag concrete and the quality of adhesion between them, and construction of a graphical model of steel fibers operation in cinderblock matrix, diagrams of deformation (state) of concrete, reinforcement and fiberы which are an integral characteristic of physical and mechanical properties of materials. Tests for the extraction of steel fibers with single offset bends at the ends of fine-grained slag concrete have been carried out. Experimental dependences of steel fibers displacement on the applied load have been obtained. Based on the results of the experimental data analysis, formulas for determining the coordinates of piecewise-linear ‘load-displacement’ diagrams are proposed; they describe the displacement of a single fiber from fine-grained slag-concrete, which allows drawing conclusions concerning their mutual influence on the anchoring ability in fine-grained slag concrete. Dependencies for determining the coefficient characterizing the change in the contribution to the work of the fibre reinforcement unit depending on the length of the adjacent fibers embedment in the slag concrete and the quality of adhesion between these fibers and the slag concrete-matrix are proposed. The work also presents common dependencies, which can be used to construct analytical piece-wise diagrams ‘load-displacement’ and describe the work of fiber embedded in fine-grained slag concrete when calculating the units of building structures from steel-fiber-slag-concrete by means of a computer using the diagram technique.
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Thahir, Muhammad Agam, Irwandy Syofyan, and Isnaniah Isnaniah. "PENGUJIAN SINKING SPEED SERAT ALAMI." JURNAL PERIKANAN TROPIS 4, no. 1 (April 1, 2017): 93. http://dx.doi.org/10.35308/jpt.v4i1.59.
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The aim of this study to determine the elongation of three types of natural fibers. The method used is an experiment, by directly testing samples of the rope in the aquarium. Sinking speed value of banana stem fiber is 4.8 cm / sec, pandan leaves 3.9 cm / sec, bundung grass fibers 2.6 cm / sec. The third of these natural fibers, banana stem fibers that have the potential as for natural fibre rope material fishing gear.
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Yadav, Shubhender Singh, Pankaj Kumar Gupta, and Bachchu Lal Gupta. "Investigation on Mechanical Properties of Hybrid Natural Fiber Reinforced Polymer Composite." Applied Mechanics and Materials 916 (September 1, 2023): 27–33. http://dx.doi.org/10.4028/p-s11f9g.
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The use of natural fibers in composite is increasing day by due to eco-friendly nature of the fibres and reuse of waste. Natural fibers can be classified according to their source of origin such as plant fiber, mineral fiber, and animal fiber. In the present article, epoxy was taken as the matrix and wool fiber for reinforcement with flax flax fiber for fabricating the composite using the hand layup technique. The impact of the hybridization of flax and wool fibers on the mechanical properties of natural fiber reinforced polymer composite was investigated. These fibers were blended in varying percentages with fixed fiber content of 5% [(100% flax fiber), (40% wool/60% flax fiber), (50% flax/50% wool fiber), (60% wool fiber/40% flax), (100% wool fiber)] with epoxy resin and sampled as F5, WF23, WF2.5, WF32, and W5 respectively. Tensile strength, flexural strength, and impact strength were investigated through experimentation. All hybrid composites outperformed non-hybrid wool fiber composites in terms of mechanical properties. The wool fiber is poor in mechanical strength which was compensated by high strength of flax fiber.
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Arputhabalan, Jeswin, and K. Palanikumar. "Tensile Properties of Natural Fiber Reinforced Polymers: An Overview." Applied Mechanics and Materials 766-767 (June 2015): 133–39. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.133.
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This paper deals with tensile properties of natural fiber reinforced polymer composites. Natural fibers have recently found increasing use in various fields as an alternative to synthetic fiber reinforced polymers. Due to this they have become attractive to engineers, researchers and scientists. Natural fibers are replacing conventional fibers such as glass, aramid and carbon due to their eco-friendly nature, lesser cost, good mechanical properties, better specific strength, bio-degradability and non-abrasive characteristics. The adhesion between the fibers and the matrix highly influence the tensile properties of both thermoset and thermoplastic natural fiber reinforced polymer composites. In order to enhance the tensile properties by improving the strength of fiber and matrix bond many chemical modifications are normally employed. In most cases the tensile strengths of natural fiber reinforced polymer composites are found to increase with higher fiber content, up to a maximum level and then drop, whereas the Young’s modulus continuously increases with increasing fiber loading. It has been experimentally found that tensile strength and Young’s modulus of reinforced composites increased with increase in fiber content [1].
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Latif, Rashid, Saif Wakeel, Noor Zaman Khan, Arshad Noor Siddiquee, Shyam Lal Verma, and Zahid Akhtar Khan. "Surface treatments of plant fibers and their effects on mechanical properties of fiber-reinforced composites: A review." Journal of Reinforced Plastics and Composites 38, no. 1 (October 2, 2018): 15–30. http://dx.doi.org/10.1177/0731684418802022.
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The need of natural fiber-reinforced composites is increasing at very fast rate because of their ecofriendly production, decomposition, high specific strength, abundance, good physical and mechanical properties. Available literature reveals that past researchers have done a lot of work for the preparation and characterization of fiber-reinforced composites. While developing natural fiber composites, researchers encountered various problems like hydrophilic nature of natural fibers, incompatibility of natural fibers with matrix materials, thermal instability of natural fibers, and poor interfacial bonding between reinforcing phase and matrix phase. However, some of these problems can be solved to a greater extent by considering surface treatment of natural fibers before they are used in the preparation of fiber-reinforced composites. Thus, there is a need for understanding the effect of several surface treatments on the mechanical properties of fiber-reinforced composites. The aim of this paper is to put forth a comprehensive review on the effects of different surface treatments on the mechanical properties such as tensile strength, flexural strength, and impact strength and also interfacial shear strength of the fiber-reinforced composites.
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Niranjan, Raja R., S. Junaid Kokan, R. Sathya Narayanan, S. Rajesh, V. M. Manickavasagam, and B. Vijaya Ramnath. "Fabrication and Testing of Abaca Fibre Reinforced Epoxy Composites for Automotive Applications." Advanced Materials Research 718-720 (July 2013): 63–68. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.63.
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The natural fibre composite materials are nowadays playing a vital role in replacing the conventional and synthetic materials for industrial applications. This paper proposes a natural fiber composite made of Abaca fibre as reinforcing agent with Epoxy resin as the matrix, manufactured using Hand Lay-up method. Glass Fiber Reinforced Plastics (woven rovings) are used to improve the surface finish and impart more strength and stiffness to natural fibers. In this work, the fibers are arranged in alternative layers of abaca in horizontal and vertical orientation. The mechanical properties of the composite are determined by testing the samples for tensile and flexural strength. It is observed that the tensile strength of the composite material is dependent on the strength of the natural fiber and also on the interfacial adhesion between the reinforcement and the matrix. The composite is developed for automobile dashboard/mudguard application. It may also be extended to biomedical, electronics and sports goods manufacturing. It can also be used in marine products due to excellent resistance of abaca to salt water damage since the tensile strength when it is wet.
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Geremew, Anteneh, Pieter De Winne, Tamene Adugna, and Hans De Backer. "Effect of Alkali Treatment on the Mechanical Property of Natural Fiber in a Concrete-A Mini Review." Key Engineering Materials 904 (November 22, 2021): 447–52. http://dx.doi.org/10.4028/www.scientific.net/kem.904.447.
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Ongoing studies show that an effective demand for using natural fibers as a substitution of an artificial fiber in fiber-reinforced composites formation has increased their applicability in an industrial area worldwide. The hydrophobic nature of natural fiber makes week adhesion among the cellulose fiber and matrix components; these problems are usually encountered in fiber-reinforced composites production. To overcome such a limitation of a cellulose fiber, specific physical and chemical treatment strategies were advised by researchers around the world for surface modification of natural cellulose fibers. One of the most basic and efficient surface modification approaches adopted today by the researchers was alkali treatment, widely used in natural fiber composites formation. This technique effectively improved the Mechanical property of natural cellulose fiber, such as tensile strength and flexural properties, while the impact strength result was reduced.
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Koundal, Ritesh, Rajeev Khanduja, Ankush Sharma, and Karun Singh. "A Review of Natural Fiber-Reinforced Polymer Composite Chemical, Physical, and Thermo-Mechanical Properties." Journal of Fibers and Polymer Composites 2, no. 2 (October 30, 2023): 67–80. http://dx.doi.org/10.55043/jfpc.v2i2.73.
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The current study reviews provide a brief overview on the properties of natural fiber and natural fiber reinforced composites like chemical, physical, mechanical properties and thermal behavior which is an emerging area in polymer science. The unique properties of these composites are based on the attributes of the individual components, as well as the relative numbers and arrangements of those components within the material system. The widespread acceptance of composites reinforced with natural fibers has attracted many researchers due to its cost, sustainability, low environmental impact and great availability in nature. The processing of natural fibers is not difficult as compared to the production of conventional fibers. In the construction, aerospace, military, building, packaging, consumer products, and transportation industries for ceiling, paneling, partition boards, etc., natural fibers have shown to be a successful substitute for synthetic fiber. Because of these factors, natural fibers are preferred to conventional fibers. However, natural fiber reinforced composites also have some negative aspects such as increased susceptibility to water damage, less durability in the event of a fire, and diminished strength when they are subjected to mechanical stress. In this paper, the overview related to the natural fiber-reinforced composites and their properties is provided.
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Li, Yan, Yan Ping Hu, Chun Jing Hu, and Ye Hong Yu. "Microstructures and Mechanical Properties of Natural Fibers." Advanced Materials Research 33-37 (March 2008): 553–58. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.553.
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Natural fibers are excellent substitute materials for man made fibers in making fiber reinforced composites due to their high specific strength and modulus, low density, low price, easy availability in some countries, recyclable and degradable properties. They have raised great attentions among material scientists and engineers in the past decade. Many researches have been conducted to study the mechanical properties, especially interfacial properties of natural fiber reinforced composites. However, the properties, such as mechanical performances, moisture absorption behaviors, et. al of natural fibers themselves have been seldom investigated. Knowing the relationship between microstructures and properties of natural fibers are important for understanding the bulk properties of natural fiber composites and also good instructions for designing bio-mimic materials. In this study, four kinds of natural fibers which were extracted from different plant sources were investigated. The microstructures of these natural fibers were revealed with the aid of optical microscopy. Microstructure models were thereof set up and mechanical properties for the representative volume element were assumed. Fiber bundle fracture models together with probability statistics analysis were employed to calculate the mechanical properties of natural fibers. The results were compared with the experimental measurements. Different mechanical behaviors of natural fibers which were functioned differently in the nature were clearly explained by the above studies
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Saidi, Taufiq, Muttaqin Hasan, and Zahra Amalia. "Tensile Strength of Natural Fiber in Different Type of Matrix." Aceh International Journal of Science and Technology 11, no. 2 (September 4, 2022): 136–44. http://dx.doi.org/10.13170/aijst.11.2.26175.
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In recent years, the used of product based with low environmental impact has become one of the considerations in the construction structure. Attention of the researchers towards the development of natural material has been increasing. The use of natural fibers as composite materials for strengthened structure have been studied. However, natural fibers are influenced by the hydrophilic nature and its specific morphology. Thus, research related to the natural fiber composite materials still needs to be explored. This study aims to evaluate the tensile strength of natural fiber composite materials based on the type of fiber, fiber layer used and its type of resin according to ASTM D3039. The results show that type of fiber, fiber layer used and its type of resin in the composite matrix considerably affects its tensile strength performance.
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Shahriar Kabir, Mohammad, M. Sahadat Hossain, Monir Mia, Md Nazru Islam, Md Mahmudur Rahman, Mohammad Bellal Hoque, and A. M. Sarwaruddin Chowdhury. "Mechanical Properties of Gamma-Irradiated Natural Fiber Reinforced Composites." Nano Hybrids and Composites 23 (December 2018): 24–38. http://dx.doi.org/10.4028/www.scientific.net/nhc.23.24.
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Today we are facing a great problem due to the synthetic compounds, as most of them are not environmentally friendly. Natural fibers are the fibers which are obtained from the nature and these fibers are environment friendly. So the use of natural fiber is increasing day by day in different sectors. But natural fiber has some limitations for widely use, one of them is the hydrophilic nature. So it cannot be widely used. That is why we need to incorporate them with low mechanical property synthetic compounds, widely known as composite materials. When we are using natural fiber with polymeric materials by forming composites, the fiber properties greatly influence the strength or mechanical properties. So researchers are trying to reduce this weakness of the natural fiber reinforced composite materials. One of the widely used methods for the improvement of tensile properties is the application of radiation (gamma and UV). The control use of gamma and UV-radiation increases the tensile properties in some extent for the use of materials in practical applications. The reason of this increment in tensile properties is the high energy radiation making crosslink among the molecules. In all the respect of fiber reinforced composite highest tensile properties are observed at a certain dose of gamma and UV-radiation.
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Ibrahim, Mohamad Ikhwan, Mohamad Zaki Hassan, Rozzeta Dolah, Mohd Zuhri Mohamed Yusoff, and Mohd Sapuan Salit. "Tensile behaviour for mercerization of single kenaf fiber." Malaysian Journal of Fundamental and Applied Sciences 14, no. 4 (December 16, 2018): 437–39. http://dx.doi.org/10.11113/mjfas.v14n4.1099.
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A natural fiber including kenaf fibers that reinforce with polymeric composite has increased attention in the manufacturing industries. However, the poor adhesion between fiber and matrix are commonly encountered respectively to their compatibility nature namely hydrophilic and hydrophobic. Therefore, alkaline treatment has introduced to reduce the hydrophilic effect of natural fiber. This paper presents the treatment of single kenaf fibers following tensile test and predicted using analysis of variance (ANOVA). Here, the kenaf fibers were modified using NaOH at different solutions. Then, the single kenaf fiber was performed under ASTM D3379-89 standard. The results showed that kenaf fiber which treats with NaOH solution of 6% significantly offered the outstanding performance of the tensile behaviour.
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Do, Nhi Thi, Hop Quang Tran, Hanh Thi My Diep, and Vi Thi Vi Do. "Study on properties of composites polyurethane foam reinforced by bamboo fiber." Science and Technology Development Journal 19, no. 4 (December 31, 2016): 212–20. http://dx.doi.org/10.32508/stdj.v19i4.693.
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This study focuses on the development and characterization of polyurethane/bamboo fiber composites foams which have the specific properties to participate both in the thermal insulation and regulation of the humidity inside the building. The polyurethane foam reinforced by bamboo fibers (5–20 wt%) were produced to investigate the mechanical test, the morphological characterization and thermal properties. The result from mechanical test showed that the compressive strength was increased at 5 wt % of bamboo fiber. Likewise, the effects of the fibre diameter and nature of bamboo fibers on some properties (compressive test, thermal analyses, surface morphology) of bamboo fibre reinforced rigid polyurethane foam were studied. The bamboo Gai and Luong fibres result in composites with better mechanical strength than the other fiber composites.
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Prasad, Vishnu, G. Venkatachalam, Akshat Rathi, and S. Rajakumar. "Finite Element Analysis of Jute Fibre Made Hybrid Polymer Matrix Composite." Applied Mechanics and Materials 592-594 (July 2014): 363–67. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.363.
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During last few years, the interest in using natural fibers as reinforcement in polymers has increased significantly. Natural fibers are not only strong and lightweight but also relatively very cheap and bio-degradable. In this work, an investigation is carried out on jute fiber, a natural fiber. Jute fiber has gained interest in the composite field due to its superior specific properties compared to manmade synthetic fibers like glass, Kevlar, asbestos, etc. The present work describes the development and characterization of natural fiber based composites consisting of jute fiber as reinforcement and hybrid resin consisting of general purpose resin and cashew nut shell resin as matrix material. The composites are fabricated using hand lay-up technique. The tensile strength is studied using experimental and numerical analysis. The nature of hybrid matrix at different composition is also studied. The commercial Finite Element Analysis software ANSYS is used for numerical study.
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Subramanya, Raghavendra, and S. S. Prabhakara. "Surface Modification of Banana Fiber and its Influence on Performance of Biodegradable Banana-Cassava Starch Composites." Applied Mechanics and Materials 895 (November 2019): 15–20. http://dx.doi.org/10.4028/www.scientific.net/amm.895.15.
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Natural fibers, in particularly lignocellulosic fibers are attracting material scientists now days, due to their comparative advantages over synthetic fibers. Biodegradable composites reinforced with short banana fibre after alkali treatment along with cassava starch matrix were prepared using the hot compression method. The mechanical properties like tensile strength and impact strength were investigated. Mechanical properties of the composites made from alkali treated fibres were superior to the untreated fibres. SEM observations on the fracture surface of composites showed that the surface modification of the fibre occurred and improved fibre–matrix adhesion. Keywords: Surface modification; banana fiber; Biodegradable composites; Mechanical properties; Matrix.
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Ramu, S., and N. Senthilkumar. "Approaches of material selection, alignment and methods of fabrication for natural fiber polymer composites: A review." Journal of Applied and Natural Science 14, no. 2 (June 18, 2022): 490–99. http://dx.doi.org/10.31018/jans.v14i2.3351.
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The recent superiority of the composite materials is cautiously focusing on environmental adoption of natural fiber composites. The major source of the natural fiber materials covered in the globe, especially natural fibers, is plant-based, animal-based and mineral-based. Eco friendly based material can save the environment and recycling of the material is possible, as well as important criteria. Hence engineers ultimately focused on natural fiber polymer matrix materials to save the environment, pollution control, plastic manipulation, etc. The literature work was studied to identify natural fiber material possession. The major goal of the present review was to identify material characterization and appropriate application, mainly offering to enhance mechanical properties, flexural strength, electrical properties, thermal properties etc. The major consequence of the natural fiber is hydrophilic treatment. There is poor interfacial adhesion between the addition/filling substances and poor mechanical characteristics. All of these shortcomings constitute a critical issue. This review presents numerous sorts of natural and synthetic polymers, natural fibres such as jute, ramie, banana, pineapple leaf fibre, and kenaf, etc.; short and long fibre loading methods, fibre fillers in micro and nanoparticle, American society of testing and materials (ASTM) standard plate dimensions, fabrication methods such as hand lay-up process, spray lay-up process, vacuumed-bag, continuous pultrusion, and pulforming process, etc.; industries and home appliances such as automotive parts, building construction, sports kits, domestic goods, and electronic devices. The review lists various material combinations, fibre loading, fillers, and matrix that can aid in the improvement of material properties and the reduction of failures during mechanical testing of composites.
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Nabinejad, Omid, Sujan Debnath, Jack Kai Beh, and Mohammad Yeakub Ali. "Mechanical Performance and Moisture Absorption of Unidirectional Bamboo Fiber Polyester Composite." Materials Science Forum 911 (January 2018): 88–94. http://dx.doi.org/10.4028/www.scientific.net/msf.911.88.
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Bamboo fibers as a natural fiber offer numerous advantages such as high specific strength over synthetic fiber when used as reinforcing fiber for polymer composites. Yet the hydrophilic nature of bamboo fibers with high moisture absorption results in incompatibility in between bamboo fibers and unsaturated polyester resin. An experimental study was carried out to investigate the effects of alkali treatment of bamboo fiber on the mechanical properties and water sorption properties of polyester composite. The result revealed that, the bamboo fiber polyester composite with 5% Alkali treated bamboo fiber possesses the highest mechanical properties. Besides, Alkali treated fibers composite showed a significant reduction in moisture uptake compared to untreated fibers, where composite with 7% Alkali treated showed the lowest moisture uptake.
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Ho, Mirella Gibson de Castro, Bárbhara Duarte Nassif, Amir de Albuquerque Nunes Ribeiro E Silva, Carlos Octávio Rocha Bueno, Verenna Santos Guedes, Carmen Couto, Eduardo Henrique Martins Nunes, and Marys Lene Braga Almeida. "Plant Fiber Reinforced Polymeric Composites for Engineering Applications: A Review." Revista de Gestão Social e Ambiental 18, no. 2 (February 29, 2024): e05116. http://dx.doi.org/10.24857/rgsa.v18n2-086.
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Purpose: Scientists are looking for unconventional materials to achieve sustainable goals and reduce the consumption of non-renewable resources. This review focuses on polymeric composite materials with improved properties and low cost, synthesized from plant fibres and their potential fields of application.
Theoretical Framework: Natural fibers, which are globally accessible, play a crucial role in improving thermal and mechanical properties when incorporated into polymers. With remarkable stiffness-density, strength and lightness, fibers stand out as promising, low-cost composite materials for applications in various areas of engineering. The plant diversity of the Amazon makes Brazil one of the largest global producers of natural fibers, providing an opportunity to develop new sustainable technologies.
Method/Design/approach: Systematic literature review addressing potential applications of polymeric materials with plant fibers, fiber extraction methods, influence of fiber surface treatments and composite processing, and mechanical properties of polymeric composites with fibers.
Results: Polymer composites reinforced with natural fibers are emerging as sustainable alternatives to synthetic materials, driven by their ecological nature, easy availability, low cost and biodegradability. A systematic review of the literature revealed that the mechanical properties of these composites are intrinsically linked to various factors, such as fibre orientation and length, which require careful optimization. In addition, it was observed that surface treatments, such as chemical acetylation and alkaline treatments, play a crucial role in improving the properties of plant fiber reinforced materials. These processes are responsible for removing impurities present in the cell walls of the fibers, such as lignins, waxes and hemicellulose, among others. Given Brazil's significant potential in the production of natural fibers, their application in industrial contexts is promising, offering an environmentally friendly solution for waste management. Thus, it is believed that, in the future, plant fibers will gain even more prominence, possibly effectively replacing the synthetic fibers widely used in the market.
Research implications: This work contributes to the development of innovative, low-cost, sustainable materials, capable of minimizing the consumption of non-renewable resources and with potential applicability.
Originality/value: The results are promising for the development of environmentally sustainable polymer composites with plant fibers, with wide applications in engineering.
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Mohammed, Layth, M. N. M. Ansari, Grace Pua, Mohammad Jawaid, and M. Saiful Islam. "A Review on Natural Fiber Reinforced Polymer Composite and Its Applications." International Journal of Polymer Science 2015 (2015): 1–15. http://dx.doi.org/10.1155/2015/243947.
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Natural fibers are getting attention from researchers and academician to utilize in polymer composites due to their ecofriendly nature and sustainability. The aim of this review article is to provide a comprehensive review of the foremost appropriate as well as widely used natural fiber reinforced polymer composites (NFPCs) and their applications. In addition, it presents summary of various surface treatments applied to natural fibers and their effect on NFPCs properties. The properties of NFPCs vary with fiber type and fiber source as well as fiber structure. The effects of various chemical treatments on the mechanical and thermal properties of natural fibers reinforcements thermosetting and thermoplastics composites were studied. A number of drawbacks of NFPCs like higher water absorption, inferior fire resistance, and lower mechanical properties limited its applications. Impacts of chemical treatment on the water absorption, tribology, viscoelastic behavior, relaxation behavior, energy absorption flames retardancy, and biodegradability properties of NFPCs were also highlighted. The applications of NFPCs in automobile and construction industry and other applications are demonstrated. It concluded that chemical treatment of the natural fiber improved adhesion between the fiber surface and the polymer matrix which ultimately enhanced physicomechanical and thermochemical properties of the NFPCs.
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Venkatachalam, N., P. Navaneethakrishnan, R. Rajsekar, and S. Shankar. "Effect of Pretreatment Methods on Properties of Natural Fiber Composites: A Review." Polymers and Polymer Composites 24, no. 7 (September 2016): 555–66. http://dx.doi.org/10.1177/096739111602400715.
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India as a tropical agricultural country has great potential to develop and use fiber derived from agricultural waste. Natural fibers are an important by-product of extraction process and they can be used as reinforcement in composite products. Composites are developed with unsaturated polyester resin as the matrix with natural fiber as the reinforcement. The results show decreased strength and modulus with increasing the fiber volume fraction. This indicates ineffective stress transfer between the fiber and matrix due to lower adhesion. It is necessary to bring a hydrophobic nature to the fibers by suitable chemical treatments in order to develop composites with improved mechanical properties. In these review papers, different types of natural fibers are subjected to a variety of physical and chemical treatments. The types of treatments studied in these papers include Physical treatments such as beating and heating, and chemical treatments like alkalization, silane, acetylation and benzoylation. The effects of these treatments on mechanical properties of the composites are analyzed. Fractures are analyzed by using the scanning electron microscopy (SEM). Analysis by FTIR and DMA showed that physico-chemical changes of surfaces of treated natural fibers. In general, treatments to the fibers can significantly improve adhesion and reduce water absorption, thereby improving mechanical properties of the composites. The purpose of this review paper is to summarize the research work done on various pretreatments in the preparation of natural fiber reinforced composites and to highlight the potential use of natural fiber reinforced polymer composites in industry and its potential to replace the synthetic fiber composite and conventional materials in the future.
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Dan-mallam, Yakubu, Mohamad Zaki Abdullah, and Puteri Sri Melor Megat Yusoff. "Mechanical Properties of Short and Continuous Kenaf/Pet Fibre Reinforced Polyoxymethylene Composite." Advanced Composites Letters 24, no. 4 (July 2015): 096369351502400. http://dx.doi.org/10.1177/096369351502400404.
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The challenges of improving the mechanical properties of natural fibre composites cannot be over emphasized due to fibre geometry, poor fiber distribution in the matrix, the hydrophilic nature of natural fibers and poor fibre–matrix interfacial adhesion. The primary objective of this research is to study the influence of fibre length on mechanical properties of kenaf/PET fibre reinforced POM and to study the effect of hybridization on mechanical properties of the composites. The composites were produced by compression molding and subsequently subjected to tensile, flexural and impact tests according to their respective ASTM standards. The tensile strength of short POM/kenaf/PET (80/10/10) hybrid composite dropped by approximately 33% from 61.8 MPa to 41.3 MPa compared to neat POM. However, the tensile strength of continuous POM/kenaf composites increased significantly by approximately 127% and 107% for 70/30 and 80/20 compositions compared to neat POM. The flexural moduli of short POM/kenaf/PET (70/15/15) hybrid composite and continuous POM/kenaf (70/30) composite improved by approximately 41% and 29%, respectively. The impact strength substantially increased by nearly 161% in continuous POM/kenaf/PET (70/15/15) hybrid composite and 30% in POM/kenaf (80/20) composite. The results show that tensile, flexural and impact properties of the continuous POM/kenaf composites are superior to the short fiber composites, and the influence of hybridization, made a positive impact by enhancing the flexural and impact properties of the composites.
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Salwa, H. N., S. M. Sapuan, M. T. Mastura, and M. Y. M. Zuhri. "Analytic hierarchy process (AHP)-based materials selection system for natural fiber as reinforcement in biopolymer composites for food packaging." BioResources 14, no. 4 (November 1, 2019): 10014–36. http://dx.doi.org/10.15376/biores.14.4.10014-10036.
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The biodegradability of a material has been an important measure in packaging design. Green biocomposites, which are made of natural fiber and biopolymer matrix, are promising alternative materials in single-use packaging to replace conventional materials. Selection of the most suitable natural fiber for reinforcement in green biocomposites is an initial attempt towards reducing resources depletion and packaging waste dumping. A selection system of analytic hierarchy process (AHP)-based method is proposed. Food packaging materials’ requirements and production factors are the basis of selecting 13 vital characteristics of natural fibers as the selection criteria. Nine natural fibers were assessed based on data gathered from recent literature. From the results, ijuk obtained the highest priority score (14%). Whilst, sisal had the lowest rank with a score of 8.8%. Sensitivity analysis was then performed to further validate the results, and ijuk remained at the top rank in four out of the six scenarios tested. It was concluded that ijuk is the most suitable natural fiber for reinforcement in green biocomposites for food packaging design. Nonetheless, for future development, more comprehensive selection criteria, such as fiber specific properties, fiber processing, and fibre treatment, are suggested to be included in the framework for more comprehensive results.
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De Almeida, Renan Henriques Gonçalves, Teresa Maria Dias Fernandes, Ana Lúcia Nazareth Da Silva, Elen Beatriz Acordi Vasques Pacheco, and Ana Maria Furtado De Sousa. "Chemical treatment of coconut fiber and its composite / Tratamento químico da fibra de coco e seus compósitos." Brazilian Journal of Development 8, no. 5 (May 9, 2022): 35400–35412. http://dx.doi.org/10.34117/bjdv8n5-179.
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Composites with natural fibers usually present poor adhesion of filler to the matrix, as consequence of the hydrophilic nature of the fiber and hydrophobic nature of the polymer. These composites also display processing limitations due to the low thermal stability of the fiber. In order to reduce these issues, chemical treatments are usually employed. Thus, the present work aims to combine the processes of mercerization and bleaching to evaluate changes in thermal stability, tensile and impact strengths, flow behaviour and morphology of composites based on HDPE/coconut fiber, with treated and untreated fibers. The results showed that the treated fiber showed better thermal stability comparing to untreated one. The composites produced with both fibers showed an increase in elastic modulus and a reduction in the flow behaviour. However, only those obtained with the treated fiber showed an increase in impact strength in relation to neat HDPE, indicating a better interaction between the treated fiber and the HDPE matrix. These results corroborate the images obtained in SEM micrographs.
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Anindita Saha, Kazi M Maraz, and Ruhul A Khan. "Physio-mechanical properties and applications of natural fiber reinforced bio-composites." GSC Advanced Engineering and Technology 3, no. 1 (January 30, 2022): 001–10. http://dx.doi.org/10.30574/gscaet.2022.3.1.0021.
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At present, natural or lignocellulosic fiber-based bio composites are the talk of the town due to their low density, cost effective, eco-friendly, renewable properties. Bio fibers such as jute, kenaf, pineapple, sugarcane, flax, leaf, hemp, wool, silk etc obtained from plants or nature which can be utilized to obtain new high performance polymer composite materials. The physical and mechanical characteristics of these bio fibers (e.g., tensile properties, flexural stress-strain behaviour, fracture strength, impact strength) make them more sustainable and attractive than synthetic fibers with a remarkable biodegradable characteristic. The aim of this review is to give a thorough overview on natural fibers and natural fiber reinforced bio composite materials, their major physical and mechanical properties and potential applications.
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Chen, Bin, Xiang He Peng, and Jing Hong Fan. "Observation on Hydrophilidae Cuticle and Analysis of Maximum Pullout Force of Branched Fiber." Key Engineering Materials 334-335 (March 2007): 901–4. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.901.
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Most structural materials existing in nature take the form of composite. After centuries’ evolution and modification, these natural materials gain highly optimized structures and prominent performances. The SEM observation on the cuticle of Hydrophilidae shows that the cuticle is a biocomposite reinforced with chitin fibers. The chitin fibers are embedded in a protein matrix of the cuticle in the form of layers. A kind of revolving fiber layup was found. Observation also shows that there is a kind of special branched fiber consisting of a long fiber and many short fibers. The maximum pullout force of the branched fiber is analyzed. The results show that the maximum pullout force of the branched fiber is distinctly larger than that of ordinary straight fiber.
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Geremew, Anteneh, Pieter De Winne, Tamene Adugna, and Hans de Backer. "An Overview of the Characterization of Natural Cellulosic Fibers." Key Engineering Materials 881 (April 2021): 107–16. http://dx.doi.org/10.4028/www.scientific.net/kem.881.107.
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Currently, researchers are more focusing on eco-friendly materials, sustainability, and low consumption of energy during the stage of handling, low initial cost, have appropriate mechanical properties and biodegradable and less susceptible to health hazards are the main challenge facing in the present day across the world especially to developing new materials that would improve the industrial supplies for making lightweight materials. Therefore; natural cellulosic fiber one, of effective strategies to substitute artificial fibers for its own benefits when compared and mainly concentrating to reinforce polymer matrices by natural cellulosic fiber due to their decomposable characteristic in nature. This an overview mainly discussed on commonly available natural fiber property such as physical property, chemical composition analysis, surface morphology analysis such as thermal stability analysis (TGA), Fourier Transform Infrared (FTIR) analysis and Scanning Electron Microscopy (SEM) to be adopted in order to characterized natural fiber and impact of treating natural fibers by appropriate chemical on certain properties was discussed by supporting literature. In addition to this the significance of characterization of natural fiber briefly discussed and this an overview will helps other researcher’s source for natural fiber composite studies in future studies.
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Bambach, Mike R. "Direct Comparison of the Structural Compression Characteristics of Natural and Synthetic Fiber-Epoxy Composites: Flax, Jute, Hemp, Glass and Carbon Fibers." Fibers 8, no. 10 (September 28, 2020): 62. http://dx.doi.org/10.3390/fib8100062.
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Recent decades have seen substantial interest in the use of natural fibers in continuous fiber reinforced composites, such as flax, jute and hemp. Considering potential applications, it is of particular interest how natural fiber composites compare to synthetic fiber composites, such as glass and carbon, and if natural fibers can replace synthetic fibers in existing applications. Many studies have made direct comparisons between natural and synthetic fiber composites via material coupon testing; however, few studies have made such direct comparisons of full structural members. This study presents compression tests of geometrically identical structural channel sections fabricated from fiber-epoxy composites of flax, jute, hemp, glass and carbon. Glass fiber composites demonstrated superior tension material coupon properties to natural fiber composites. However, for the same fiber mass, structural compression properties of natural fiber composite channels were generally equivalent to, or in some cases superior to, glass fiber composite channels. This indicates there is substantial potential for natural fibers to replace glass fibers in structural compression members. Carbon fiber composites were far superior to all other composites, indicating little potential for replacement with natural fibers.
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Oleiwi, Jawad K., Qahtan A. Hamad, and Shereen A. Abdulrahman. "Comparative Study of Polymeric Laminated Composites Reinforced by Different Fibers of Prosthetic Socket by DSC and FTIR." Key Engineering Materials 911 (February 24, 2022): 3–8. http://dx.doi.org/10.4028/p-ju39wm.
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Prosthetic socket is the device that link artificial limb with the amputee part. This work has been done on seven laminated composite were prepared by vacuum technique from Polyester resin reinforced with (Jute, Carbon, Glass, Perlon) fibers. The interaction between fibers and matrix material was studied using Fourier transform infrared (FTIR) spectroscopy. DSC test also had been studied for different laminated composite materials to make prosthetic socket. The infrared spectra result of the Polyester composite specimens with natural and synthetic fibers indicate that no additional new peak was observed. While DSC results showed the increase in the glass transition temperature (Tg) as the number of Jute layers increased and this may be related to the nature of Jute fibers. As well as Carbon lead to increase Tg but Glass fiber decreased Tg when added to natural fiber (Jute fiber). The composite specimen reinforced with three layers of Jute fibers plus four layers of Carbon fibers (3 Jute + 4 Carbon) had the highest Tg (107°C).
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Hinchliffe, Doug J., Gregory N. Thyssen, Brian D. Condon, Linghe Zeng, Rebecca J. Hron, Crista A. Madison, Johnie N. Jenkins, Jack C. McCarty, Christopher D. Delhom, and Ruixiu Sui. "Interrelationships between cotton fiber quality traits and tensile properties of hydroentangled nonwoven fabrics." Journal of Industrial Textiles 53 (January 2023): 152808372311713. http://dx.doi.org/10.1177/15280837231171312.
Full textAbstract:
Cotton fibers can be used to produce nonwovens suitable for numerous single use applications including hygiene, wipes, and medical products among others. Cotton comprises a relatively small amount of total raw materials used in nonwovens production compared to the synthetic fibers of polyester and polypropylene, but the use of cotton fibers in nonwovens continues to increase due to demand for disposable products containing natural, sustainable, and biodegradable materials. However, the relationship between cotton fiber classification measurements and nonwoven fabric physical and functional properties are not well characterized. A better understanding of the effects of cotton fiber properties on nonwovens fabric properties will facilitate fiber selection for specific end-use applications. In this study, cotton fibers with broad distributions of fiber quality measurements from 10 recombinant inbred lines of a multi parent advanced generation intercross multiparent advanced generation intercross population were harvested and processed in their greige state into hydroentangled nonwoven fabrics of two distinct basis weights. Tensile testing of lightweight nonwovens indicated fiber length and tensile strength at break were positively correlated with fabric strength, whereas micronaire (air permeability of a fiber bundle) was negatively correlated indicating finer fibers contributed to increased fabric strength. Increased strength of heavyweight fabrics was mainly correlated with higher fiber uniformity index. These results suggest that cotton fibers could be selectively sourced based on fiber quality for specific nonwoven applications and establishes alternative market opportunities for cotton fibers classified as inferior and subject to discount pricing in the woven textile market.
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Zhang, Tong. "Research and Develop Intelligent Temperature-Controlled Fabric Starting from the Internal Structure of Textile Fibers." Applied Mechanics and Materials 401-403 (September 2013): 692–95. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.692.
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ntelligent temperature-controlled fiber can perceive changes in the environment and correspond accordingly subject to stimulation of certain conditions. In the functional innovation, the intelligent fibrous material modifies the nature of conventional synthetic fiber and the original performance of natural fiber and chemical fiber. Through in-depth analysis of the existing achievements, strive to explore the application prospect of intelligent temperature-controlled fiber starting from the internal structure of textile fibers.
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Manurung, Rokki, Sutan Simanjuntak, Jesayas Sembiring, Richard A. M. Napitupulu, and Suriady Sihombing. "Analisa Kekuatan Bahan Komposit Yang Diperkuat Serat Bambu Menggunakan Resin Polyester Dengan Memvariasikan Susunan Serat Secara Acak Dan Lurus Memanjang." SPROCKET JOURNAL OF MECHANICAL ENGINEERING 2, no. 1 (November 5, 2020): 28–35. http://dx.doi.org/10.36655/sproket.v2i1.296.
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Composites are materials which are mixed with one or more different and heterogeneous reinforcement. Matrix materials can generally be polymers, ceramics and metals. The matrix in the composite serves to distribute the load into all reinforcing material. Matrix properties are usually ductile. The reinforcing material in the composite has the role of holding the load received by the composite material. The nature of the reinforcing material is usually rigid and tough. Strengthening materials commonly used so far are carbon fiber, glass fiber, ceramics. The use of natural fibers as a type of fiber that has advantages began to be applied as a reinforcing material in polymer composites. This study seeks to see the effect of the use of bamboo natural fibers in polyester resin matrix on the strength of polymer composites with random and straight lengthwise fiber variations. From the tensile test results it can be seen that bamboo fibers can increase the strength of polymer composites made from polyester resin and the position of the longitudinal fibers gives a significantly more strength increase than random fibers.
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Anandakumar.D and Siva.P. "Analysis on Natural Fibre Sisal and Areca Polymer Based Composite Material." International Journal of Advances in Scientific Research and Engineering 09, no. 04 (2023): 11–23. http://dx.doi.org/10.31695/ijasre.2023.9.4.3.
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Present days natural fibers have transformed the matter of research field among various fields of study to inculcate it in the manufacture of composites instead of the production of composites using areca and sisal polymer-based composite. This is due to respective advantages related to natural fibers like eco-friendly, low cost, convenience in copiousness, and biodegradability. Stacks of work have been carried out in the production of natural fiber-reinforced polymer composites, using natural fibers like areca and sisal polymer-based composite and their mechanical properties have been studied. Here is an attempt made on the literature survey of areca and sisal fibre built polymer composites where different properties of areca and sisal fibers, its adulthood level, surface treatment effect on properties of fibers, composite formation with different matrices, its mechanical properties have been highlighted.
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Suriani, M. J., Hannah Zalifah Rapi, R. A. Ilyas, Michal Petrů, and S. M. Sapuan. "Delamination and Manufacturing Defects in Natural Fiber-Reinforced Hybrid Composite: A Review." Polymers 13, no. 8 (April 18, 2021): 1323. http://dx.doi.org/10.3390/polym13081323.
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In recent years, most boat fabrication companies use 100% synthetic fiber-reinforced composite materials, due to their high performance of mechanical properties. In the new trend of research on the fabrication of boat structure using natural fiber hybrid with kevlar/fiberglass-reinforced composite, the result of tensile, bending, and impact strength showed that glass fiber-reinforced polyester composite gave high strength with increasing glass fiber contents. At some point, realizing the cost of synthetic fiber is getting higher, researchers today have started to use natural fibers that are seen as a more cost-effective option. Natural fibers, however, have some disadvantages, such as high moisture absorption, due to repelling nature; low wettability; low thermal stability; and quality variation, which lead to the degradation of composite properties. In recent times, hybridization is recommended by most researchers as a solution to natural fiber’s weaknesses and to reduce the use of synthetic fibers that are not environmentally friendly. In addition, hybrid composite has its own special advantages, i.e., balanced strength and stiffness, reduced weight and cost, improved fatigue resistance and fracture toughness, and improved impact resistance. The synthetic–nature fiber hybrid composites are used in a variety of applications as a modern material that has attracted most manufacturing industries’ attention to shift to using the hybrid composite. Some of the previous studies stated that delamination and manufacturing had influenced the performance of the hybrid composites. In order to expand the use of natural fiber as a successful reinforcement in hybrid composite, the factor that affects the manufacturing defects needs to be investigated. In this review paper, a compilation of the reviews on the delamination and a few common manufacturing defect types illustrating the overview of the impact on the mechanical properties encountered by most of the composite manufacturing industries are presented.
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Latuconsina, Muhammad Fachnoor, and Istyawan Priyahapsara. "BENDING STRENGTH OF HYBRID COMPOSITE OF GLASS AND NATURAL FIBER PHINEAGE LEAVES." Vortex 2, no. 2 (June 30, 2021): 89. http://dx.doi.org/10.28989/vortex.v2i2.1012.
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The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. One of the natural fibers that are commonly used is natural fiber from pineapple leaves, where natural fiber from ananas leaves is still very minimal in its commercial use and is only considered as waste
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Sahaya Ruben, J., and G. Baskar. "Experimental Investigation on Strengthening of Latex Treated Coconut Fiber in Concrete." Asian Review of Civil Engineering 2, no. 2 (November 5, 2013): 23–29. http://dx.doi.org/10.51983/tarce-2013.2.2.2193.
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Coconut fibers have the highest toughness amongst natural fibers. The experiment has carried out to investigate the behavioural study of coconut fibre in concrete member. The Coconut fibre is treated using natural latex before using in concrete, so that it is not be affected by moisture content presented in concrete. In this experimental study 28 days of the compressive strength is carried out using different coconut fibre length of 20mm, 25mm and 30mm respectively with a different percentage as 0.5%, 0.75% and 1%. The selected input variables include the length of the fiber, percentage of the fiber, and maximum load of the specimen. In this paper, Back-Propagation Neural Network (BPNN) model has been developed to predict the Compressive strength of Concrete members. A parametric study is carried out using BPNN to study the influence of each parameter affecting the characteristic compressive strength of the concrete. The results of this study indicate that BPNN provide good predictions which are better than those from other available methods. These models can serve as reliable and simple predictive tools for the prediction of compressive strength of the members.
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Praveen Kumar, A., M. Nalla Mohamed, K. Kurien Philips, and J. Ashwin. "Development of Novel Natural Composites with Fly Ash Reinforcements and Investigation of their Tensile Properties." Applied Mechanics and Materials 852 (September 2016): 55–60. http://dx.doi.org/10.4028/www.scientific.net/amm.852.55.
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Increasing demand for special materials leads to new inventions. One of the most promising inventions is the concept of composites. Natural fibers have the potential as a reinforcing material as an alternative to the use of glass, carbon and other synthetic fibers in automotive industries. Among various natural fibers, Kenaf is a widely used fiber due to its easy availability, low density, low production cost and satisfactory mechanical properties. To enhance the mechanical properties of natural fibre composites, strengthening of the matrix and fibre is very much essential. A prospective reinforcement in this regard is fly ash, which is abundantly available as a waste product from thermal power plants. In this paper, a new novel natural composite with epoxy as a resin and reinforcing both bio waste (Kenaf) and industrial waste (Fly ash) has been developed. All the laminates were prepared with a total of 4 plies. Laminates without fly ash filler were also fabricated for comparison purpose. A hand lay-up method was used for the fabrication of composites and was tested as per ASTM standards for evaluation of tensile properties. The effect of fly ash weight percentage (5, 10, 15% wt.) on tensile properties was studied experimentally. Due to the incorporation of fly ash fillers into the kenaf fiber composites, there is considerable improvement in the mechanical properties. Overall results supported the effective utilization of natural composites for automotive applications.
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Acosta-Calderon, Samantha, Pablo Gordillo-Silva, Natividad García-Troncoso, Dan V. Bompa, and Jorge Flores-Rada. "Comparative Evaluation of Sisal and Polypropylene Fiber Reinforced Concrete Properties." Fibers 10, no. 4 (March 24, 2022): 31. http://dx.doi.org/10.3390/fib10040031.
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This paper presents a focused comparative case study considering the influence of natural and synthetic fibers on the fresh and mechanical properties of concrete. Locally sourced 19 mm long sisal fibers from sisalana leaves and manufactured polypropylene fibers were incorporated in a normal strength concrete matrix with fiber volumetric contents of 1%. After describing the measured aggregate characteristics, mix designs, and fresh concrete properties, several destructive and non-destructive tests on hardened concrete were undertaken. The former included compression tests on cylinders and flexural tests on prismatic samples, and the latter included ultrasonic pulse velocity and rebound number tests. The workability of sisal-fiber reinforced concrete was generally lower than the nominal concrete and that provided with polypropylene fibers by about 20%, largely due to the hydrophilic nature of the natural fibers. Test results showed that the presence of sisal fibers can improve the compressive strength by about 6%, and the tensile strength by about 4%, compared with the non-reinforced counterpart. This was due to the sisal fibers storing moisture that was released gradually during hydration, helping with the strength development. The concrete with polypropylene had virtually identical properties to the reference concrete. In addition to fresh and mechanical properties, environmental impacts associated with the production of fiber and concrete were also identified and discussed. Based on the assessments from this paper, overall, from the two fibers investigated, the sisal fiber showed more promising results, indicating that natural fibers can be a more sustainable alternative to plastic fibers, providing a good balance between workability and strengths.
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Prabhu, S. Venkatesa, Vincent Herald Wilson, K. T. Anand, S. Jose, S. Sivamani, Chinnasamy Gomadurai, and Melkamu Kifetew. "Water Absorption Behavior of Teff (Eragrostis tef) Straw Fiber-Reinforced Epoxy Composite: RSM-Based Statistical Modeling and Kinetic Analysis." Advances in Polymer Technology 2022 (June 15, 2022): 1–6. http://dx.doi.org/10.1155/2022/8188894.
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Recently, reinforced polymeric composites prepared from natural fibers have received a significant interest among the researchers because of its appreciable sustainability, environmentally friendly, and low cost. However, one particular issue, that is, hydrophilic property, still needs to be addressed for its successful applications. Since the hydrophilic tendency of natural fibers is extremely undesirable, it leads to the quick degradation of fiber-based polymer composites. Hence, the fiber property, hydrophilic nature, is influenced by the presence of noncrystalline and voids part of these fibers that significantly influences the polymer matrix adhesion. Hence, it is very important to understand the water absorption behavior of reinforced fiber composites. In this study, a crop residual material specific to Ethiopia, teff straw (Eragrostis tef), was used as fiber material. The fiber was treated with 1% NaOH followed by 1% CH2=CHCOOH at room temperature for improving the bonding strength between the fiber and polymer, which leads to suppress the water absorption. The investigation on mathematical model for water absorption property at different fiber loadings (4%, 8%, 12%, 16, and 20%) was carried out, and the analysis on the kinetic behavior of water absorption was also investigated. In addition, the response surface-based statistical modeling which correlates water absorption, fiber loading, and time has been analyzed.
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Patra, Subhashree, Kamal Lochan Mohanta, and Chhatrapati Parida. "Mechanical properties of bio-fiber composites reinforced with luffa cylindrica irradiated by electron beam." International Journal of Modern Physics B 33, no. 26 (October 20, 2019): 1950305. http://dx.doi.org/10.1142/s0217979219503053.
Full textAbstract:
This investigation aims to analyze the effects of electron beam irradiation on the morphological and mechanical properties of green composites synthesized using natural fibers of luffa cylindrica (LC) and biodegradable polymer poly (lactic) acid. This work aims to transform the low priced, readily available, agricultural waste product LC fiber into a high value product. The major challenge during the fabrication of natural fiber composites is the chemical bonding between hydrophilic LC fiber and hydrophobic poly lactic acid (PLA) matrix. Due to the disagreeing chemical nature of fiber and matrix, they are not compatible. The fibers are exposed to physical treatment, i.e., electron beam irradiation of different doses 0.5, 1.0, 2.0, 4.0 and 10.0 Gy using 6 MeV medical linear accelerator to increase the compatibility of LC fiber with PLA. Before irradiation, LC fibers are modified with calcium salts to explore the use of composite materials in biomedical terrain. When PLA is reinforced with irradiated LC fiber, tensile strength increases by 79.87% and flexural strength increases by 177%. Mechanical parameters generated by flexural and tensile tests of this study can be explored to have various clinical applications like bone implant, replacement of cervical cavities, etc.
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Nurhaliza, Ulfa Hanifah, Gema Centra Adin, Satrio Dwi Anggoro, and Muchammad Oktaviandri. "Design and Analysis Rolling Press Mechanism for producing Banana Stem as Natural Fiber." Journal of Sustainable Mechanical Engineering 1, no. 1 (July 25, 2023): 7–11. http://dx.doi.org/10.54378/josme.v1i1.5604.
Full textAbstract:
Materials for structural engineering are divided into four types, including ceramics, polymers, and composites. Composite material is a combination of reinforcement and matrix. Composite technology has progressed so rapidly. The development was mainly triggered by the demand for high quality materials. In its development, the fiber used is not only synthetic fiber (glass fiber) but also natural fiber (natural fiber). The advantage of natural fibers compared to synthetic fibers is that natural fibers are more environmentally friendly because natural fibers are able to decompose naturally, while synthetic fibers are more difficult to decompose. In this paper, banana midrib fiber is used and taken from the kepok banana tree (Musa paradisiaca) is a fiber that has good mechanical properties. Banana midrib fiber has a density of 1.35 g/cm3, the cellulose content is 63-64%, hemicellulose 20%, lignin content is 5%, the average tensile strength is 600 MPa, the tensile modulus is 17.85 GPa and the fracture strain is 3, 36%. Because of the advantages of the banana midrib fiber, hence this paper is made for support the production of the banana midrib fiber by designing and analyzing concept design of the machine for processing natural fibers, especially when the material is banana stems, it is called ZEUS MACHINE: Banana Stem Rolling Press Machine as Natural Fiber by Using Manual Power from Pedaling. This machine can help increase the productivity of natural fiber manufacture and can support the development of technology engaged in industry.
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Yadav, D., G. P. Singh, S. Nehra, and A. Joshi. "Thermal stability of natural fiber reinforced biodegradable composites." Journal of Physics: Conference Series 2603, no. 1 (October 1, 2023): 012037. http://dx.doi.org/10.1088/1742-6596/2603/1/012037.
Full textAbstract:
Abstract Polymer composites reinforced with natural fibers are being increasingly developed by researcher and scientist in the recent field of material science due to their various applications in aerospace, marine and industries. The hydrophilic natural fibers are incompatible with the hydrophobic polymer matrices this leads to less interfacial bonding between fibers and matrix. In this paper, fibers were collected from desert plant prosopis juliflora and NaOH treatment was done to increase interfacial bonding of fiber-Matrix. Prosopis Juliflora fiber reinforced phenol formaldehyde composites were prepared with different fiber loading up to 20wt% and then characterized by thermo gravimetric analysis. This paper describes thermal properties composites materials by Thermo gravimetric analysis TGA and Differential scanning calorimetric DSC analysis of composite materials with different heating rates and hence establishes a connection between temperature and physical properties of substances. This study highlights the potential of alkali treatment in improving the thermal stability of the composites. This paper concludes that by, increasing the fiber weight percentage (fiber loading) in PF resin does increase the thermal stability of the resulting composite. The mass residue of untreated fiber reinforced PF composites with fiber loading 15% wt. UTFRPFC 15was 35%, while treated fiber reinforced PF composites with fiber loading 15% wt. ATFRPFC 15 had a mass residue of 75% at a temperature of 400°C. This clearly shows that alkali treatment significantly enhances the thermal stability of the composites. Alkali pre-treatment activates the fibers’ surface and helps increase the fiber’s mechanical strength.