Статті в журналах з теми "Polyester glass-Fiber powders"
Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Polyester glass-Fiber powders.
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-26 статей у журналах для дослідження на тему "Polyester glass-Fiber powders".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.
1
K, Jaswanth. "Experimental Investigation and Analysis of Mechanical Properties of Chopped Strand Mat-E Glass Fiber Polyster Resin & Silica Powder Composites." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (April 25, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem31612.
Анотація:
Composite materials play a vital role in many industrial applications. Researchers are working on fabrication of new composite materials worldwide to enhance the applicability of these materials. In view of this the mechanical performance of the composite material is essential. The objective of the present work is to analyze the effect of Silica powders content on the mechanical behavior of woolen E-glass 350gm-Glass fiber reinforced. Five different types of composites are fabricated using 0%,2%,4%,6%,8%wt of Silica powders with woolen-E glass fiber and polyester resin. The polyester resin, catalyst and accelerator are mixed in 50:1:1weight ratio in polyester matrix Silica. The aim of the project is to investigate the effect of Silica powders with woolen e-glass 350gm for making the composite material stronger and tougher. The investigation is carried out by mixing different weight percentages of the Silica powders with the polyester resin and preparing individual samples. After woolen- eglass preparation, the materials were properly mixed using the hand-lay techniques and different specimens were prepared with different compositions of the Silica powders. After all the samples were prepared, mechanical tests were carried out on the samples to ascertain the changesobserved due to the composition of Silica powders. The obtained results of various samples specimens were compared and graphically charted to characterize the new composites material. Keywords: Chopped Strand Mat (CSM) 450 G M-Glass Fiber; Silica Powder; Polyester Resin;Hand-Lay;Catalyst;Accelerator.
2
Kumar, V. Sravan. "Experimental Investigation and Analysis of Mechanical Properties of Chopped Strand Mat-E Glass Fiber Polyster Resin & Graphite Powder Composites." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (April 15, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem30792.
Анотація:
Composite materials play a vital role in many industrial applications. Researchers are working on fabrication of new composite materials worldwide to enhance the applicability of these materials. In view of this the mechanical performance of the composite material is essential. The objective of the present work is to analyze the effect of graphite powders content on the mechanical behavior of woolen E-glass 350gm-Glass fiber reinforced. Five different types of composites are fabricated using 0%,2%,4%,6%,8%wt of graphite powders with woolen-E glass fiber and polyester resin. The polyester resin, catalyst and accelerator are mixed in 50:1:1weight ratio in polyester matrix graphite. The aim of the project is to investigate the effect of graphite powders with woolen e-glass 350gm for making the composite material stronger and tougher. The investigation is carried out by mixing different weight percentages of the graphite powders with the polyester resin and preparing individual samples. After woolen- eglass preparation, the materials were properly mixed using the hand-lay techniques and different specimens were prepared with different compositions of the graphite powders. After all the samples were prepared, mechanical tests were carried out on the samples to ascertain the changesobserved due to the composition of graphite powders. The obtained results of various samples specimens were compared and graphically charted to characterize the new composites material. Keywords: MattE-Glass 350gm; Polyester resin; Graphite powders; Hand- Lay technique ; Catalyst & Accelerator.
3
Pathak, Govind, Om Prakash Dubey, and Prafful Kumar Manoharan. "MECHANICAL PROPERTIES OF SISAL/GLASS FIBER REINFORCED HYBRID COMPOSITES: A REVIEW." International Journal of Students' Research in Technology & Management 6, no. 2 (March 5, 2018): 70–76. http://dx.doi.org/10.18510/ijsrtm.2018.6210.
Анотація:
The natural fiber-reinforced polymer composite is swiftly growing both in phrases of their industrial applications and fundamental research. They are renewable, cheap, absolutely or in part recyclable and biodegradable. The incorporation of herbal fibers consisting of sisal with glass fiber hybrid composites has additionally received growing industrial packages. Herbal and synthetic fibers are mixed in the same matrix (unsaturated polyester) to make sisal/glass fiber hybrid composites and the mechanical residences of those hybrid composites had been studied. A giant development in mechanical homes of sisal/glass fiber hybrid composites has been observed. the chalk powder (additive) is likewise introduced to the resin (unsaturated polyester) in proportions of 1%, 2%, 3% by way of weight of resin respectively and sisal/glass fiber hybrid composites were organized through the usage of this resin to take a look at the effect of chalk powder on mechanical homes of those hybrid composites. It is also found that because the chalk powder quantity increases tensile and flexural residences are decreases.
4
Allien, J. Vipin, Hemantha Kumar, and Vijay Desai. "Semi-active vibration control of MRF core PMC cantilever sandwich beams: Experimental study." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 234, no. 4 (February 4, 2020): 574–85. http://dx.doi.org/10.1177/1464420720903078.
Анотація:
The semi-active vibration control of sandwich beams made of chopped strand mat glass fiber reinforced polyester resin polymer matrix composite (PMC) and magnetorheological fluid (MRF) core were experimentally investigated in this study. Two-, four- and six-layered glass fiber reinforced polyester resin polymer matrix composites were prepared using the hand-layup technique. The magnetorheological fluid was prepared in-house with 30% volume of carbonyl iron powder and 70% volume of silicone oil. Nine cantilever sandwich beams of varying thicknesses of the top and bottom layers glass fiber reinforced polyester resin polymer matrix composite beams and middle magnetorheological fluid core were prepared. The magnetorheological fluid core was activated with a non-homogeneous magnetic field using permanent magnets. The first three modes, natural frequencies and damping ratios of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams were determined through free vibration analysis using DEWESoft modal analysis software. The amplitude frequency response of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams through forced vibration analysis was determined using LabVIEW. The effect of various parameters such as magnetic flux density, thickness of glass fiber reinforced polyester resin polymer matrix composite layers and magnetorheological fluid core layer on the natural frequencies, damping ratio and vibration amplitude suppressions of the glass fiber reinforced polyester resin polymer matrix composite-magnetorheological fluid core sandwich beams was investigated. Based on the results obtained, 2 mm thickness top and bottom layers glass fiber reinforced polyester resin polymer matrix composite and 5 mm thickness magnetorheological fluid core sample have achieved a high shift in increased natural frequency, damping ratio and vibration amplitude suppression under the influence of magnetic flux density.
5
Herlina Sari, Nasmi, Salman, Suteja, Yusuf Akhyar Sutaryono, and Joni Iskandar. "Evaluation of the Impact Strength and Morphology Properties of Musa Acuminata Fiber Composite/CaCo3 Powder." Journal of Fibers and Polymer Composites 2, no. 1 (March 28, 2023): 18–28. http://dx.doi.org/10.55043/jfpc.v2i1.63.
Анотація:
Banana stem (Musa Acuminata, MA) fiber is a free agricultural waste obtained after harvesting the fruit. When compared to synthetic fibers, banana fiber has significant weaknesses in composite production, such as low interfacial bond strength between the fiber and the matrix. The purpose of this research is to improve the impact strength of banana stem fiber composites by adding CaCO3 powder. The hot press technique is used to create composites. In the production of polyester composites, woven MA and CaCO3 stem fibers are prepared. An impact testing machine and a scanning electron microscope were used to investigate the effect on morphological properties and impact strength. The study's findings revealed that a polyester composite containing 10% banana stem fiber and 25% CaCO3 had the highest impact strength of 45.27 KJ/m2, which was associated with strong adhesion between the CaCO3-fiber and the polyester matrix. Fiber pullout, matrix cracking, and fiber debonding were all observed in the composite fracture morphology. The resulting composite properties could be used to replace palm fiber/fiber glass composites.
6
Yamkamon, Pongpicha, Kiattisak Sritrakulchai, and Supphachan Rajsiri. "Recycling of Pre-Fabricated Carbon-Fiber Waste as Filler for Sandwich Glass-Fiber Auto Parts." Advanced Materials Research 1043 (October 2014): 85–90. http://dx.doi.org/10.4028/www.scientific.net/amr.1043.85.
Анотація:
This study explored the possibility of recycling pre-fabricated carbon to use as filler in conjunction with talc to produce glass-fiber reinforced unsaturated polyester composites. Specimens with six different resin compositions were prepared using hand lay-up technique. The structure and property relationship was characterized through tensile test and microstructure analysis. Mechanical properties incorporated with the failure analysis suggest that the recycling of carbon is feasible. The application of the recycled carbon showed the improvement on the less variation on the mechanical properties. The percent elongation at break tended to reduce, and traded-off with the deterioration on tensile strength at break and elastic modulus. Mixing with 10-15 wt% recycled carbon and 5-10 wt% talc powder was suggested to yield the optimal tensile properties. Moreover, the recycled carbon previously coated with unsaturated polyester guides the uniform distribution when required to process with a high-polarity material by reducing the polarity effect.
7
Bağriaçik, Baki, Ahmet Beycioğlu, Szymon Topolinski, Emre Akmaz, Sedat Sert, and Esra Deniz Güner. "Assessment of glass fiber-reinforced polyester pipe powder in soil improvement." Frontiers of Structural and Civil Engineering 15, no. 3 (June 2021): 742–53. http://dx.doi.org/10.1007/s11709-021-0732-x.
Анотація:
AbstractThis study investigates the use of glass fiber-reinforced polyester (GRP) pipe powder (PP) for improving the bearing capacity of sandy soils. After a series of direct share tests, the optimum PP addition for improving the bearing capacity of soils was found to be 12%. Then, using the optimum PP addition, the bearing capacity of the soil was estimated through a series of loading tests on a shallow foundation model placed in a test box. The bearing capacity of sandy soil was improved by up to 30.7%. The ratio of the depth of the PP-reinforced soil to the diameter of the foundation model (H/D) of 1.25 could sufficiently strengthen sandy soil when the optimum PP ratio was used. Microstructural analyses showed that the increase in the bearing capacity can be attributed to the chopped fibers in the PP and their multiaxial distribution in the soil. Besides improving the engineering properties of soils, using PP as an additive in soils would reduce the accumulation of the industrial waste, thus providing a twofold benefit.
8
Sonsakul, K., and W. Boongsood. "Effects of glass scraps powder and glass fiber on mechanical properties of polyester composites." IOP Conference Series: Materials Science and Engineering 273 (November 2017): 012006. http://dx.doi.org/10.1088/1757-899x/245/1/012006.
9
Sonsakul, K., and W. Boongsood. "Effects of glass scraps powder and glass fiber on mechanical properties of polyester composites." IOP Conference Series: Materials Science and Engineering 273 (November 2017): 012006. http://dx.doi.org/10.1088/1757-899x/273/1/012006.
10
Ait Tahar, Kamal, and R. Bahar. "Influence of the Dimensions of the Mesh of the Fiber Grid Reinforcement of Composite Materials." Key Engineering Materials 550 (April 2013): 9–16. http://dx.doi.org/10.4028/www.scientific.net/kem.550.9.
Анотація:
Currently, the composite materials make important great strides, considering their high mechanical properties. The studies relating to the conceptual, technical aspect and modeling of their mechanical behavior are more than desirable. The mechanical properties of the composite material depend on several factors as the nature of fibers, the fiber/matrix ratio, compatibility, homogeneity... In this study, we present the results of an experimental analysis of the behavior of the composite material, under a static and a dynamic loading. The composite material is composed respectively of the glass and metal fiber reinforcement. A various dimensions of the mesh are considering. The resin used is polyester Resow 55 E. The dynamic test ( Knoop test) is carried out on various specimens made up of an polyester resin RESOW 55 E reinforced with varied powder nature. It makes it possible to measure the hardness of composite materials. The analysis of the results shows clearly that the mechanical properties are strongly influenced by the dimensions of the elementary mesh of the fiber grid reinforcement. Based on experimental results, a Weibull modulus has been established for each specimen.
11
Kancharla, Bhanu Hari Vardhan. "Synthesis and Characterization of Polyester and Rice Husk Fiber Reinforced Polymer Composites for Structural Applications." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (February 28, 2022): 534–42. http://dx.doi.org/10.22214/ijraset.2022.40335.
Анотація:
Abstract: In current years composites have concerned considerable importance as a potential operational material. The composite materials are replacing the traditional materials, because of its superior properties such as low thermal expansion, high tensile strength, high strength to weight ratio ,Low cost, light weights, high specific modulus, renewability, and biodegradability are the most basic & common attractive features of composites that make them useful for industrial applications. The composite have generally minimal effort of creation, simple to create and better-quality contrast than perfect polymer tars. The developments of new materials are on the anvil and are growing day by day. In this study, Woven roving mats (E-glass fiber orientation (-45/45, 0/90, 45/45),UD450GSM) were cut in measured dimensions and a mixture of Polyester Resin, Methyl Ethyl Ketone Peroxide (MEKP), Cobalt and rice husk powder is used to manufacture the glass fiber reinforced composite by hand lay-up method. Mechanical properties such as tensile strength, impact are evaluated Keywords: Epoxy Resin, e-glass fibre, fly ash, Biodegradability, Mechanical Properties
12
Sari, Nasmi Herlina, Pandri Pandiatmi, Emmy Dyah Sulistyowati, Sinarep Sinarep, Pandri Pandiatmi, I. Made Wirawan, Suteja Suteja, et al. "Evaluasi Sifat Bending, Tarik dan Morpologi dari Komposit Polyester/Serbuk Serat Hibiscus Tiliaceus setelah diperlakukan dengan NaOH." Jurnal METTEK 7, no. 2 (November 30, 2021): 83. http://dx.doi.org/10.24843/mettek.2021.v07.i02.p04.
Анотація:
Telah diinvestigasi komposit poliester yang dimodifikasi dengan serbuk dari serat hibiscus tiliceus (HT) sebagai inovasi dari material komposit yang baru. Penelitian ini bertujuan untuk menyelidiki sifat mekanik dari komposit dari serbuk hibiscus tiliaceus (HT) setelah direndam dalam larutan alkali dalam periode berbeda. Sebelum dibuat komposit, serbuk HT direndam dalam alkali NaOH 5% selama waktu berbeda yaitu 2, 4 jam, 6 jam, dan 8 jam. Teknik pembuatan komposit dilakukan dengan teknik hand lay-up; resin poliester sebagai matrik dengan hardener dari metil etil keton peroksida 1% dicampur, kemudian dituang ke dalam cetakan dan diberi tekanan 5 MPa selama 12 jam. Sifat kekuatan tarik, modulus elastisitas dan kekuatan bending telah dievaluasi. Hasil studi menunjukkan bahwa lama perendaman serbuk HT dalam NaOH memberikan efek pada sifat mekanik dari komposit serbuk HT/polyester. Setelah serbuk direndam dalam NaOH selama 2 jam, 4 jam dan 6 jam, kekuatan tarik dan bending dari komposit meningkat yang dikaitkan dengan ikatan interface antara serbuk HT-poliester bertambah kuat, tetapi kekuatannya menurun setelah serbuk direndam selama 8 jam karena serbuk HT rusak dan pullout. Analisa SEM menunjukkan morpologi patahan yang rapat dan padat antara serbuk dan poliester serta adanya serbuk HT pullout. Ditinjau dari kekuatan tariknya, komposit yang dihasilkan ini dapat menjadi alternatif pengganti komposit serat gelas.
A polyester composite modified with powder from Hibiscus Tiliceus fiber as a new composite material. This study aims to evaluate the mechanical properties of the composite of Hibiscus tiliaceus (HT) powder after being immersed in an alkali solution for different periods. Before making the composite, the HT powder was immersed in 5% NaOH for times; 2, 4, 6, and 8 (hours). The composite manufacturing technique has been carried out using the hand lay-up technique; polyester resin as a matrix with a hardener of 1% methyl ethyl ketone peroxide mixed, then poured into molds and under the pressure of 5 MPa for 12 h. The properties of tensile strength, modulus of elasticity, and bending strength have been evaluated through tensile and bending tests. The results showed that the tensile and bending strengths of the composite increased after the HT powder was soaked from 2 h to 6 h; it is due to an increase in the interfacial bond between the HT powder-polyester, but the composite strength decreased after the powder was soaked for 8 h because the HT powder was damaged and powder pullout occurs. SEM analysis shows a tight and dense interface between the powder and polyester and the presence of HT powder pullout. In terms of tensile strength, the resulting composite can be an alternative to glass fiber composites.
13
Saribiyik, Ali, and Guven Gurbuz. "Effects of glass fiber reinforced polymer pipe waste powder usage on concrete properties." Revista de la construcción 20, no. 3 (2021): 463–78. http://dx.doi.org/10.7764/rdlc.20.3.463.
Анотація:
In this study, the recycling of pipe waste powder in concrete has been experimentally investigated to reduce its harm to the environment and human health. Glass fiber reinforced polymer pipe waste powder (GFRP-WP) reveals during the production of additional coupling and bends of GFRP pipes produced for clean water and wastewater systems. GFRP-WP is composed of polyester resin, sand, and E-glass fiber. GFRP-WP was used as a partial replacement to fine aggregate in proportions of 0% 5%, 10%, 20%, 30% and 40% to the concrete mixture. The effect of GFRP-WP was examined on the physical and mechanical properties of concrete, such as compressive strength, workability, capillarity, and water absorption. According to the results, it was seen that GFRP-WP could be used as filler in concrete, and some positive and negative effects on concrete were also determined. GFRP-WP reduced the workability of concrete. Therefore, GFRP-WP impaired the properties of the concrete if certain mixing ratios were exceeded. It was determined that GFRP-WP could be used in concrete up to 15% by volume as a partial replacement for fine aggregate.
14
Radenkov, M. F., P. Ts Cherkezova, V. K. Dikov, and F. D. Radenkov. "Modification of polymeric matrix of polyester fiber-glass materials with powder polyamide and epoxy resin." Russian Journal of Applied Chemistry 79, no. 11 (November 2006): 1907–11. http://dx.doi.org/10.1134/s1070427206110322.
15
Raliannoor, Raliannoor, and Dwi Rahmalina. "PENGARUH FRAKSI VOLUME PENGUAT 2, 2,5 DAN 3% SERAT BAMBU HAUR DAN FIBERGLASS TERHADAP KEKUATAN TARIK MATRIKS POLIESTER." INFO-TEKNIK 20, no. 2 (January 13, 2020): 141. http://dx.doi.org/10.20527/infotek.v20i2.7710.
Анотація:
Against the backdrop of the increasing need for quality composite materials and the development of increasingly advanced composite manufacturing technology in the machinery industry. The aim of this research is to develop composite materials with bamboo fiber reinforcement and glass fiber as an alternative to automotive raw materials to replace plastic. Preparation of composite specimens with each reinforcement with volume fractions of 2%, 2.5%, and 3% and specimens without reinforcement or 0% volume fraction as a comparison.
The polymer material used is Yukalac 157-EX BQTN polyester as its matrix. With haur bamboo fiber and fiberglass as a reinforcement. Making specimens using the hand lay up method. Tests carried out are composite specimen tensile tests. Tensile testing was carried out using the ASTM D 638M-84 M-1 standard.
Based on the test results, it was concluded that the effect of fiber volume fraction on the characteristics of composite samples for tensile tests. Composite strengthened by haur bamboo and fiberglass powder at 3% heavy volume fraction has the most ideal characteristics that have a tensile strength of 53.581 MPa, modulus of elasticity of 87.452 MPa and polymer composite material with a strength of haur bamboo and fiberglass powder with a length of 5 mm at 3% reinforcing volume fraction can be used as an alternative to automotive raw materials, namely replacing polyoxymethylene plastic materials for the front bumper.
16
Thanomsilp, Chuleeporn, Silvano Cauchi-Savona, Ton Peijs, and Saran Posyachinda. "Use of Rice Husk Powder as a Substitute for CaCO3 in Thermoset-Based Molding Compounds." Journal of Biobased Materials and Bioenergy 1, no. 1 (April 1, 2007): 87–93. http://dx.doi.org/10.1166/jbmb.2007.1982.
Анотація:
This paper explores the potential of using rice husk powder (RHP) as a substitute or in combination with calcium carbonate (CaCO3) fillers for its application in glass fiber/polyester molding compounds. In each case, one type of filler particle was used, while three formulations of filler combinations were selected: 100% RHP, 50:50% RHP:CaCO3, and 100% CaCO3. The constituents were kept at a constant volume ratio of resin:fibers:filler at 63:12:25% in all the formulations investigated. A sigma-bladed mixer was used to mix the compounds to a uniform dispersion. These were subsequently cold-pressed, post-cured, and tested for flexure, tension, and notched-Charpy impact. The results showed that the strength of the composites increases with increasing RHP, while the stiffness decreases when the CaCO3 is replaced by RHP. However, weight-for-weight, the composites containing RHP exhibit better or at least comparable mechanical properties to those containing solely CaCO3.
17
Nasir, Mohamad, and Jauhar Fajrin. "Degradation of Polyester Composite Reinforced E-Glass Fiber with Calcium Carbonate Filler in Seawater." International Journal of Membrane Science and Technology 10, no. 2 (August 31, 2023): 3796–805. http://dx.doi.org/10.15379/ijmst.v10i2.3240.
Анотація:
This research is concerned with composite materials that use CaCO3 as a reinforcing material in construction, especially subsea panels and buildings. Composite materials are solids composed of two or more materials that have their own properties and improve their properties when combined. In this experiment, glass fiber and CaCO3 were mixed in a certain composition and tested to evaluate the water absorption and mechanical strength of the composite. The results show that increasing temperature can increase water absorption, while the addition of CaCO3 has a significant effect on water absorption due to its hydrophilic properties. Water absorption in polyester composites is influenced by aging temperature and Calcium Carbonate powder filler, affecting tensile and bending strength. As aging temperature increases, mechanical strength decreases, composite having the highest tensile strength. Bending tests show debonding and splitting fault patterns due to glass fiber arrangement. With a deeper understanding of how CaCO3 affects composite materials under various conditions, this research can provide valuable insights for developing more durable composite materials suitable for construction applications, especially in corrosive environments such as subsea buildings.In this research, it proposes theoretically model to controlling on half-wave voltage of modulator, in which it uses studying the factor of effective of refractive index difference, this using analysis distribution of refractive index for LN material before and after voltage is applied (i.e., with and without applied voltage), and uses analysis a factor of propagation constant difference ??, before and after voltage is applied where it depends on the wavelength, these leads to it controls on the half-wave voltage V? using a reduction half-wave voltage up to 1V. Also, it achieves an excellent solution for solve the fundamental optical mode with effective factor is neff. Finally, the modulator with an effect effective refractive index difference have lower applied voltage up to 10V, and with an effective propagation constant difference the operating voltage is from value of 20V.
18
Ahmed, Suha Hashim, and Ghaidaa Ibrahim Husain. "A Comparative Study of the Experimental Results of Mechanical Tests of Composite Material Made of Polyester-Reinforced Fiber and Glass Powder." International Research Journal of Innovations in Engineering and Technology 06, no. 01 (2022): 132–37. http://dx.doi.org/10.47001/irjiet/2022.601023.
19
Beycioğlu, Ahmet, Orhan Kaya, Zeynel Yıldırım, Baki Bağrıaçık, Magdalena Dobiszewska, Nihat Morova, and Suna Çetin. "Use of GRP Pipe Waste Powder as a Filler Replacement in Hot-Mix Asphalt." Materials 13, no. 20 (October 16, 2020): 4630. http://dx.doi.org/10.3390/ma13204630.
Анотація:
There is an increasing global trend to find sustainable, environmentally friendly and cost-effective materials as an alternative to limited natural raw materials. Similarly, the use of waste materials has been gaining popularity in the production of hot-mix asphalt (HMA). In this study, the sustainable use of glass-fiber-reinforced polyester (GRP) pipe waste powder (GRP-WP), gathered from the cutting and milling process of GRP pipe production, utilizing it in asphalt mixes as a filler, is evaluated based on lab testing to find out: (i) if it produces similar or better performance compared to the most conventionally available filler material (limestone) and, (ii) if so, what would be the optimum GRP-WP filler content to be used in asphalt mixes. For this reason, an experimental test matrix consisting of 45 samples with three different amounts of binder content (4%, 4.5% and 5.0%), and a 5% filler content with five different percentages of the GRP-WP content (0%, 25%, 50%, 75% and 100% replacement by weight of the filler), was prepared to figure out which sample would produce the similar Marshall stability and flow values compared to the control samples while also satisfying specification limits. It was found that the samples with 4.5% binder content, 3.75% GRP-WP and 1.25% limestone filler content produced the results both satisfying the specification requirements and providing an optimum mix design. It is believed that use of GRP-WP waste in HMA production would be a very useful way of recycling GRP-WP.
20
Mahadi, Mahadi. "Respon Helmet Sepeda Type BMX Material Polymeric Foam Diperkuat Serbuk Tandan Kosong Kelapa Sawit Terhadap Beban Impak Metode Jatuh Bebas." Talenta Conference Series: Energy and Engineering (EE) 1, no. 1 (October 16, 2018): 109–16. http://dx.doi.org/10.32734/ee.v1i1.119.
Анотація:
Pengujian impak standar pada helmet sepeda diperlukan untuk mengetahui respon tegangan pada helmet akibat efek rambatan gelombang regangan dengan laju rambatan gelombang yang tinggi. Tujuan dari penelitian ini adalah untuk mengetahui berapa besar energi yang dapat diserap oleh helmet sepeda bila diberi beban impak. Penelitian dilakukan terhadap helmet sepeda type BMX dengan formasi saluran udara (wind channel) tertentu yang terbuat dari material polymeric foam diperkuat serbuk tandan kosong kelapa sawit (TKKS) mesh40. Struktur geometri helmet uji terdiri dari lapisan luar (shell) terbuat dari material matrix resin unsaturated Polyester BQTN-157EX dan penguat serat glass chopped strand mat 300. Lapisan dalam (liner) adalah material polymeric foam menggunakan matrix resin unsaturated Polyester BQTN-157EX, penguat serbuk TKKS mesh40, Blowing AgentPolyurethane dan katalis Methyl Ethyl Keton Peroksida (MEKPO). Nilai dari sifat mekanik polymeric foam adalah tegangan tarik (σt) 1,17 MPa, tegangan tekan (σc) 0,51 MPa, tegangan bending (σb) 3,94 MPa, modulus elastisitas (E) 37,97 Mpa dan density (ρ) 193 (kg/m3). Metode impak yang dilakukan adalah jatuh bebas standar Consumer Product Safety Commision (CPSC). Helmet sepeda yang diuji adalah hasil dari desain standar Bicycle Helmet Safety Institute (BHSI) yang mempunyai dimensi panjang 264 mm, lebar 184 mm, dan tinggi 154 mm dengan lingkar kepala 580 mm. Massa test rig pada alat uji yang digunakan sebesar 5 kg dan massa helmet sepeda hasil cetakan bervariasi 328 s/d 451gr. Pengujian impak jatuh bebas dilakukan pada 18 sampel helmet ketebalan 10 mm dan 20 mm pada ketinggian 1,5 m dengan menggunakan flat anvil. Hasil uji impak pada parameter Gaya impak terbesar (Fi ), Energi Impak terbesar (Ei), Impuls (I), Tegangan Impak terbesar (σi) adalah 241,55 N, 283,77 J, 6,28 Ns, 2,02 MPa untuk tebal 10 mm dan 226,80 N, 360,23 J, 6,80 Ns, 1,90 MPa untuk tebal 20 mm.
Standard impact testing on bicycle helmets is needed to determine the response on the helmet voltage due to the effect of strain wave propagation with a high a rate of wave propagation. The purpose of this reseach is to find out how much energy can be absorbed by the bicycle helmet if it is given an impact load. The reseach was conducted on BMX type bicycle helmet with a certain wind channels formation made of polymeric foam material strengthened by the powder of oil palm empty bunches (TKKS) mesh40. The geometry structure of the tested helmet consists of a shell made by the material of unsaturated Polyester BQTN-157EX resin and the fiber strengthener of glass chopped strand mat 300. The inner layer (liner) is a polymeric foam material using unsaturated Polyester BQTN-157EX resin matrix, TKKS powder strengthener Mesh40, Blowing Agent Polyurethane and catalyst Methyl Ethyl Ketone Peroxide (MEKPO). The characterizatons of the polymeric foam mechanical are tensile stress (σt) 1.17 MPa, compression stress (σc) 0.51 MPa, bending stress (σb) 3.94 MPa, elastic modulus (E) 37.97 Mpa and density (ρ ) 193 (kg / m3). The impact method was using the standard free fall of the Consumer Product Safety Commission (CPSC). The bicycle helmet tested is the result of the standard Bicycle Helmet Safety Institute (BHSI) design that has dimensions of 264 mm in length, 184 mm in width, and 154 mm in height with a head circumference of 580 mm. The mass of the test rig on the test equipment used was 5 kg and the helmet mass of the printed bicycle varied from 328 to 451gr. The free fall impact test was carried out on 18 helmet samples thickness of 10 mm and 20 mm at an altitude of 1.5 m using anvil flat. The impact test results in the parameters of the largest impact force (Fi), the largest impact energy (Ei), Impuls (I), the largest impact voltage (σi) are 241.55 N, 283.77 J, 6.28 Ns, 2.02 MPa for 10 mm and 226.80 N thickness, 360.23 J, 6.80 Ns, 1.90 MPa for 20 mm thickness.
21
"Glass fiber reinforced polyester molding compositions containing metal powders." Composites 19, no. 4 (July 1988): 333. http://dx.doi.org/10.1016/0010-4361(88)90096-1.
22
Hussein, Samah M., and Zaynab N. Rasheed. "Performance Evaluation of Chestnut Nano Particles on Tensile, Impact, Vickers Hardness of Polyester/Glass Fiber Composite." Iraqi Journal of Science, April 30, 2023, 1753–63. http://dx.doi.org/10.24996/ijs.2023.64.4.16.
Анотація:
In this study, an industrial source) E-Glass fiber) and a natural source (chestnut filler) were combined to improve the properties of polyesters. Hand-layup technique was applied in this work. Polyester (UPE) were reinforced with E-glass fibers, then reinforced with nano chestnut particles. All composites were prepared with (10% wt.) of E-glass for all prepared sheet and this ratio applied for Nano chestnut composite to preparing nano hybrid composites, Nano chestnut particles were used to reinforce E-glass/UPE composites with weight ratio (3%, 6% and 9% wt.). The evaluated mechanical performances for E-glass/NCSP polyester composite were tensile strength, impact strength and hardness. The higher ultimate tensile strength, Young’s modulus and impact strength was appeared for the E-glass/UPE composite with 3%wt nano chestnut filler only. While the composites with 6% and 9% wt. showed failure in these properties. Hardness property was high with the three percentage addition of nano powder of chestnut.
23
VarunKumar, T., M. Jayaraj, N. Nagaprasad, Jule Leta Tesfaye, R. Shanmugam, and Ramaswamy Krishnaraj. "An examining the static and dynamic mechanical characteristics of milled ramie root reinforced polyester composites." Scientific Reports 13, no. 1 (October 10, 2023). http://dx.doi.org/10.1038/s41598-023-44088-5.
Анотація:
AbstractThis research works discuss about the effective utilization of waste Ramie Root, that has been in reinforced polyester composites, powdered fillers that have not been treated are used. Four different composites plate were formed with compression moulding technique process consisting of 20, 30 and 40% of Powdered Ramie Root with 80, 70 and 60% unsaturated polyester resin, respectively. The maximum mechanical properties were observed for the composite with 30:70 weight volume percentages of milled ramie root synthetic reinforced polyester. The findings show that the glass transition temperature, storage modulus, and loss factors all rise when the composition of composites changes. Additionally, the powder cohesion force (bonding strength) has a greater impact on dynamic mechanical properties. Thermo-gravimetric the inclusion of Ramie Root powder caused the thermal deterioration peak of the composite to move from 370 °C to 418 °C, according to analysis (TGA) conducted under flowing oxygen. According to the measurement of water absorption, the ideal weight ratio of Fiber: Unsaturated Polyester Resin is 30:70, which modifies the fibres’ surfaces and ensures optimal adhesion between the fibre and matrix in composite materials. Scanning electron microscopic investigation is done to ascertain the fracture behaviour of the composite. As a result of their stability, high tensile strength, and bending stiffness, the produced composites can be used in light-load applications by material technologists.
24
Sosiati, Harini, Tri Wahyono, Hidayatullah Hidayatullah, Arif Rahman Muttaqien, Ankas Pamasti, Ryan Nauval Wicaksono, and Rahmat Ramadhan. "Modification and Innovation of Commode Chair Using a Polyester-based Composite for Elderly Patient." Media Karya Kesehatan 7, no. 1 (April 3, 2024). http://dx.doi.org/10.24198/.v7i1.48480.
Анотація:
Bamboo stems, a source of fiber/bamboo salts, is a type of natural fiber with a lower density than other natural fibers. Apus bamboo is a type of bamboo having high mechanical strength. Their superior properties have attracted public interest to develop their potential to become advanced and functional materials. A combination of woven apus bamboo slats obtained from Kalisemo village, Purworejo Regency, Indonesia, and woven glass fiber are used as the reinforcing material and fabricated to be the hybrid composite material with a polyester binder mixed with 5% eggshell powder. The ratio of reinforcement and binder is 20: 80 (vol. %). This composite product is used for modification and innovation components in the commode chair product as a medical device for elderly patients. The flexural strength and water absorption tests are conducted on the composite material before use. The commercial commode chair made of wood is modified using the composite and made an innovation by adding right and left handrails to maintain the body balance of elderly patients. Keywords: (bamboo slat, commode chair, composite, glass fiber, polyester).
25
Nandiyanto, Asep Bayu Dani, Alya Chairunnisa Tahira, Siti Nur Hofifah, Silmi Ridwan Putri, and Gabriela Chelvina Santiuly Girsang. "Effects of Particle Size and Composite Composition of Carbon Microparticles as Reinforcement Components on Resin-Based Brake Pad Performance." Journal of Engineering Research, December 14, 2021. http://dx.doi.org/10.36909/jer.asseee.16039.
Анотація:
This study aims to investigate the effect of particle size and composition of bamboo and clove leaves as reinforcement components on resin-based brake pad performance. Bamboo fibers contain cellulose and lignin, making them better mechanical properties compared to glass fibers. Clove leaves due to their containment of oil components can be used, playing roles in binding bamboo with resin material. In short, experiments were done by involving polymerization of polyester resin as an adhesive with methyl ethyl ketone peroxide (MEKP) at room temperature. The composition of polyester/MEKP/reinforcing components was fixed at a mass ratio of 10/1/1.76 and the particle size of the reinforcing components were 582 and 250 m. Reinforcing components were mixed carbonized bamboo fiber and dried clove leaves with a ratio of 4/1; 7/1; and 10/1. The results showed that smaller particles has better mechanical properties, and the more amount of bamboo particles give positive impacts on the material hardness. The best hardness value (reaching 24 N/cm2) and smallest pore volume (0.0213 cm3) were obtained when using the ratio of 10:1. While the smallest weight loss of mass at the rate of 0.1225 g/min was obtained by the ratio of 7/1. The largest friction coefficient and lowest wear rate were obtained by 4/1 with a value of 0.1108 and 1.08 g/s.mm2, respectively. This study demonstrates the use of biomass waste such as bamboo fiber and dried clove leaves as an alternative to asbestos and reduces the abundant waste of bamboo powder and dried clove leaves in Indonesia.
26
Bavithran, BG, VA Nagarajan, and KP Vinod Kumar. "Mechanical performance of in-situ coated fumed silica in hybrid composite partition sheets." Polymers and Polymer Composites, August 28, 2020, 096739112095325. http://dx.doi.org/10.1177/0967391120953251.
Анотація:
This paper involves the utilization of waste fishing nets as one of the reinforcements in the manufacturing of fumed silica coated composite partition sheets. Hybrid Fishing Net Reinforced Plastic (HFNRP) composite sheets developed by sandwiching various layers of used fishing net between the two glass fiber layers and in-situ coated with the AEROSIL®200 nano powder, were tested for mechanical properties. Appreciable values for mechanical properties were seen for all the HFNRP sheets; more pronounced when the number of fishing net layers was increased. On the contrary, the light transmission through the sheets decreases. The nylon content of the fishing nets in the sheets increased the linear thermal expansion with highest value of 2.01 inches/100 feet (0.168%). Moreover, water absorbing properties of the coated HFNRP sheets revealed to be moisture resistant due to the coating of polyester/nano powder resin mixture. Thermogravimetric Analysis and Differential Thermal Analysis revealed the mass change and phase change for the various manufactured specimens. The wear analysis with the pin on disk experiment revealed the wear resistance through the allied action of the flexible fishing net nylon and the friction resistant nano coating over the specimens. These, low cost and less weight composite sheets were successfully developed and implemented as the partition sheets for affordable buildings and fishing nets were efficiently reused.