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1
Qanytah, Khaswar Syamsu, Farah Fahma e Gustan Pari. "Structure analysis of three non-wood materials for liner paper". Nordic Pulp & Paper Research Journal 34, n. 4 (18 novembre 2019): 453–66. http://dx.doi.org/10.1515/npprj-2019-0043.
Abstract (sommario):
Abstract The potential use of sago pith waste, bamboo, and water hyacinth based on the characteristics of raw materials to make liner paper were studied. The analysis conducted covered the analysis of physical characteristics, chemical components, morphology (SEM), functional groups (FTIR), and crystallinity (XRD). The pulp from the three kinds of fiber was molded into paper with a certain formulation. The parameters of pulp and paper observed covered the alkaline consumption, Kappa number, pulp yield, and paper physical characteristics (grammage, bursting strength, Ring Crush Test/RCT, water content, and water absorption). The chosen paper was the paper whose characteristics resembled the quality parameter of liner paper used by the paper industry and the standard in accordance with the Indonesia’s National Standard (SNI) 14-0095-1996. The microscope images showed that the three said raw materials have long fibers: sago pith waste and water hyacinth has fibers measuring respectively 1.89±0.90 and 2.07±0.39 mm, resembling hard wood, whereas bamboos have longer fibers measuring 4.61±0.72 mm, resembling soft wood. Bamboos have the best fiber composition and characteristics for pulp and liner paper. The two paper formulas that meet the criteria for liner paper are bamboo and bamboo+water hyacinth.
2
Supriadi, A., e D. R. Trisatya. "Engineered bamboo: The promising material for building and construction application in Indonesia". IOP Conference Series: Earth and Environmental Science 886, n. 1 (1 novembre 2021): 012040. http://dx.doi.org/10.1088/1755-1315/886/1/012040.
Abstract (sommario):
Abstract There is a rising gap between supply and demand of wood as building and construction materials. The search of alternative materials to fill in the gap is an urgent concern. Bamboo is one of locally abundant resources; 88 out of 135 species growth in Indonesia is an endemic. It is a renewably material and has comparable characteristics to wood. Notable efforts to reduce the variability of raw bamboo have led to the improved physical and mechanical properties of the engineered bamboo. Laminated bamboo and hybrid laminated bamboo-wood had superior wood strength in comparison to the raw materials. Laminated bamboo produced from andong (Gigantochloa pseudoarundinacea (Steud.) Widjaja), mayan (Gigantochloa robusta Kurz), vertically laminated andong bamboo comparable to wood strength class I, I-II and II, respectively. Furthermore, hybrid laminated bamboo-wood andong-manii (Maesopsis eminii Engl.), andong-mayan-jabon (Anthocephalus cadamba (Roxb.) Miq.) comparable to wood strength class II and III, respectively. The properties improvement of engineered bamboo demonstrates the potential application of laminated bamboo as a substitution for building and construction material.
3
Nguyen, Thanh Nam, Tuyen Vo e Tran Van Hung. "Study on the Effects of Technology Parameters on the Water Absorption and the Thickness Swelling of the Pressed Bamboo Pulp Plywood". Key Engineering Materials 863 (settembre 2020): 1–11. http://dx.doi.org/10.4028/www.scientific.net/kem.863.1.
Abstract (sommario):
The application of bamboo by-products such as bamboo branches, chips to recycle and produce pressed bamboo pulp is an urgent task in Vietnam. It perfectly replaces natural wood with artificial wood embryos from bamboo powder, which has both economic benefits of reserving the source of raw materials, environmental protection... The paper presents a study of the influence of technological parameters on the water absorption and swelling thickness of pressed bamboo pulp plywood in order to ameliorate the quality of pressed bamboo pulp plywood in production of new materials for civil engineering with environmentally friendly bamboo wood pulp materials.
4
Sathish, T., S. Dinesh Kumar, M. Ravichandran, V. Mohanavel, S. Suresh Kumar, Sivanraju Rajkumar e Ram Subbiah. "Waste Food Cans Waste Bamboo Wood Based AA8079/SS304/Bamboo Wood Ash Hybrid Nanocomposite for Food Packaging". Key Engineering Materials 928 (16 agosto 2022): 69–78. http://dx.doi.org/10.4028/p-9lpz3q.
Abstract (sommario):
Nowadays life style practices demand more packed foods in the market around the world. In this trend increases the demand for researches on developing new packaging materials. In this research focuses novel AA8079/ SS304/ Wood ash hybrid nanocomposites development for meeting packaging related applications. The materials like aluminum alloy AA8079 (matrix material) obtained from waste food cans, Nanoparticles of stainless steel SS304 and Nanoparticles of Wood ash which obtained from waste bamboo woods were utilized to compose through stir casting process. Two set of Six different novel AA8079/ SS304/ Wood ash hybrid nanocomposites by varying the reinforcement from 0 wt.% to 10 wt.% with the step of 2 wt.% in the AA8079 matrix. The prepared composites included for examinations to test their Ultimate Tensile strength, yield strength, percentage of elongation, shear strength and hardness properties. Apart from this, the effect of heat treatment and annealing on strength of developed novel AA8079/ SS304/ Wood ash hybrid nanocomposites were investigated.
5
Trisatya, D. R., M. Iqbal e I. M. Sulastiningsih. "Enhancing the properties of damar (Agathis loranthifolia Salisb.) wood by making hybrid bamboo-wood composite". IOP Conference Series: Earth and Environmental Science 914, n. 1 (1 novembre 2021): 012066. http://dx.doi.org/10.1088/1755-1315/914/1/012066.
Abstract (sommario):
Abstract This study was carried out to investigate the characteristics of laminated bamboo and damar (Agathis loranthifolia Salisb.) wood as the core layer of the bamboo-damar hybrid composite beam. Andong bamboo (Gigantochloa pseudoarundinacea (Steud.) Widjaja) and mayan bamboo (Gigantochloa robusta Kurz.) were used as the face and back layers of the beam, glued with isocyanate adhesive. Four types of composite beam were produced with various number of laminated bamboo layers. Results showed that the four layers (two layers for each face and back sides) laminated andong bamboo performed superior mechanical properties than others hybrid composite beam, while the four layers (two layers for each face and back sides) laminated mayan bamboo demonstrated the highest compression and bonding strength. The density, MOR, MOE and compression strength of the hybrid composite beam improved 31.3%, 25.95%, 37.81% and 25.12%, respectively, as the outcomes of the incorporation of laminated andong bamboo on the outer layers of the damar board. This paper proves that the number of laminated bamboo layers enhances the properties of the bamboo-damar hybrid composite beam. Furthermore, it shows promising result for complementing furniture and interior design materials as the bamboo-damar hybrid composite beam has remarkable properties.
6
Arsad, Effendi. "KARAKTERISTIK SERTA PENGEMBANGAN PENGGUNAAN KAYU KARET DAN BAMBU UNTUK BAHAN BAKU PERUMAHAN RAKYAT DAN INDUSTRI". Jurnal Riset Industri Hasil Hutan 4, n. 1 (1 luglio 2012): 36. http://dx.doi.org/10.24111/jrihh.v4i1.1200.
Abstract (sommario):
Rubber wood and bamboo is an important natural resource to be developed as residential and industrial raw materials which are the raw material of commercial products. The presence of rubber wood and bamboo needs to be supported by the preservation and processing industry in order to be optimally utilized. Rubber wood has physical properties, mechanical and chemical equivalent of natural forest wood. properties of rubber wood used in rural as well fuel wood rafters to corral. While bamboo also has certain advantages compared to wood because it is easily preserved, processed and have a high elasticity While bamboo is used as a wall of the house after the split and created a kind of bamboo called palupuhan/gedek. Made simple, just the process of drying in the hot sun. Durability palupuhan/gedek could reach 10 years, but must be used in place are protected from rain. Without is bamboo used in as rafters to corral, ring, rafter and raw material of fishery.Keywords : rubber wood, bamboo, potency, characteristic, preservative.
7
Hartono, Rudi, Jajang Sutiawan, Dede Hermawan, Santiyo Wibowo e Deni Zulfiana. "Termite and decay resistances of Sumatran elephant dung-based particleboard modified with wood shavings and bamboo layering". BioResources 18, n. 3 (2 giugno 2023): 5073–84. http://dx.doi.org/10.15376/biores.18.3.5073-5084.
Abstract (sommario):
Elephant dung (ED) particleboard (PB) still has subpar physical and mechanical qualities. In earlier research, adding wood shavings and bamboo layers to ED-derived PB successfully enhanced its physical and mechanical qualities. However, the resistance to termites and decay of this PB is still unknown. Therefore, this study examines the resistances to termites and decay of the PBs from ED fiber-modified with wood shavings and bamboo layering. ED and wood shavings were distributed throughout the PB in ratios of 100/0, 90/10, 80/20, 70/30, 60/40, and 50/50 (w/w %). Meanwhile, tali bamboo (Gigantochloa apus), talang bamboo (Schizostachyum brachycladum), kuning bamboo (Bambusa vulgaris), belangke bamboo (Gigantochloa pruriens), and betung bamboo (Dendrocalamus asper) were the materials used in this study. These findings demonstrated that adding wood shavings could improve PB’s resistance to termite and decay attacks. However, in this investigation, the layering of bamboo diminishes the PB’s resistance to termite and decay attack. A 50/50 ratio between ED and wood shavings achieved slightly higher termite mortality and lower weight loss than others. Meanwhile, kuning bamboo had lower termite mortality and higher weight loss than others.
8
Antonov, Svetlin, Nguyen Thanh Nam, Tran Trong Hy e Le Khanh Dien. "A Study on the Effects of Technical Parameters on the Tensile Strength of Bamboo Plywood". E3S Web of Conferences 207 (2020): 05004. http://dx.doi.org/10.1051/e3sconf/202020705004.
Abstract (sommario):
The application of bamboo by-products such as bamboo branches, chips to recycle and produce pressed bamboo pulp is an urgent task in Vietnam. It perfectly replaces natural wood with artificial wood embryos from bamboo powder, which has both economic benefits of reserving the source of raw materials, environmental protection The paper presents a study on the influence of technological parameters on the tensile strength of pressed bamboo plastic fiber that is a new product of a project of our laboratory.
9
Sujito, S., Hanim Munawaroh e Endhah Purwandari. "Mechanical Properties and Biodegradability of Bamboo and Sengon Wood Thin Sheets Reinforced Poly Latic Acid (PLA) Biocomposites)". Jurnal ILMU DASAR 14, n. 2 (16 luglio 2014): 67. http://dx.doi.org/10.19184/jid.v14i2.513.
Abstract (sommario):
Development of biocomposite materials based on natural fibers and environmentally friendly resins to replace composite materials made from plastic and synthetic fibers give the consideration that the biocomposite materials are environmentally friendly materials. In this paper, we discuss the synthesis and characterization of biocomposite materials using a combination of thin sheets of bamboo reinforcement and resin sengon and poly lactic acid (PLA). As controls were also carried out the synthesis and characterization of biocomposite material with a thin layer of reinforcement only sengon bamboo and wood. Characterization of tensile strength and modulus of elasticity of the material is done by using the Tensile Test Machine ASTM D 638. In the mean time, biodegradability of materials are observed made by the method of burial for 1-4 weeks. Tensile test results show that the biocomposite material reinforced with a thin sheet bamboo has a tensile strength and modulus of elasticity greater than that of the other biocomposite materials produced in this study. Meanwhile, biocomposite materials with thin layers of wood sengon reinforced easily biodegradable (dG = 13.21 ± 0.59)%, compared to a biocomposite material with a thin layer of bamboo reinforcement (dG = 10.69 ± 0.79)%. From these results it can be concluded that the composite material with a thin layer of bamboo boosters are more likely to be applied to replace metallic materials.Keywords: Biocomposites, tensile strength, elastic modulus, biodegradability, bamboo and sengon wood thin layer.
10
Hong, Pei Fen. "Furniture Materials Research in Kinmen". Advanced Materials Research 1091 (febbraio 2015): 45–50. http://dx.doi.org/10.4028/www.scientific.net/amr.1091.45.
Abstract (sommario):
The purpose of this study is to explore furniture materials and feature in Kinmen of Taiwan. The methods include document analysis , field research and interview. The results indicate that kinmen furniture materials commonly used china-fir and another bamboo, china tree and Taiwan acacia, and in terms of the material properties of wood, Taiwan acacia the highest hardness, but poor drying and processing, the other hand fir, china-fir and bamboo materials, due to easy drying and processing, so it is a higher probability of use. However, the Golden Gate itself does not produce china-fir, wood sources and more from the Chinese mainland shipping from, then ask China to Kinmen master production, or direct purchase ready-made furniture in China.
11
Lin, Chang. "Research and Development of Bamboo Glulam Furniture". Open Construction and Building Technology Journal 9, n. 1 (19 agosto 2015): 99–102. http://dx.doi.org/10.2174/1874836801509010099.
Abstract (sommario):
China is theone of the origins of bamboo plants and distribution centers in the world, is one of the most abundant bamboo resources countries, and is known as the "kingdom of bamboo". According to authoritative department statistics show that China's bamboo species has accounted for about 37% of the world total. With the increasingly shortage of wood resources, the sustainable development of the high, Bamboo Glulam Furniture, as a kind of processing is better than wood, without being limited by the resources of new materials, gradually entered the market. While the development of Bamboo Glulam Furniturenot only can alleviate lumber supply gap, but also can make full use of bamboo resources in China, very fit the "two-type society" and "sustainable development" theme. This article will from Bamboo Glulam to sexual characteristics, processing characteristic, analyzes how to make use of its advantages, show the characteristics of bamboo timber, exploring the road of the development of new composite materials design.
12
Van Hung, Tran, Le Khanh Dien e Vo Tuyen. "A research on the design a bamboo powder drying machine". Science & Technology Development Journal - Engineering and Technology 3, SI1 (12 aprile 2020): First. http://dx.doi.org/10.32508/stdjet.v3isi1.733.
Abstract (sommario):
Bamboo is a sustainable and environmentally friendly material that has the potential to improve the global decline of natural resources. Bamboo is very popular in the countryside of almost all Southeast countries, particularly in Vietnam. Its ability can replace some kinds of wood in decoration and household goods. Bamboo grows up rapidly and can be harvested within 3 to 5 years of planting, in the meanwhile, the harvesting time of other hardwood trees must be from 8 to 10 years or longer. The inherent characteristics of bamboo are lighter than other wood materials and have a value in social and environmental benefits. Its advances in manufacturing technology have created high-value products such as bamboo flooring and bamboo furniture that can substitute for wood flooring and wood furniture. According to the biology studies, the bamboo has the characteristics that can replace the natural wood, but the direction of development from the stage of cultivation to the stage of finished products has not been exploited thoroughly. The production of bamboo plywood will become a great potential for the bamboo plywood industry in Vietnam. Generally, the fabrication of bamboo plywood depends on the following processes such as cutting, grinding to powder or pulp, drying, and pressing processes. In cutting and grinding processes, the trivial remains of bamboo after use, shoots… can be chopped and ground to a powder that is dried and pressed into bamboo plywood by a specialized machine similar to the production of artificial wood particleboard (PB). Bamboo powder drying machine plays a very important role in the production process of bamboo plywood. The function of the machine is drying bamboo powder to get the technical required appropriate moisture before pressing it into the standard bamboo boards. This article presents a design of bamboo powder drying machine with simple structure, long life, medium productivity, and price suitable for medium and small scale production of the Vietnam market. The first bamboo powder drying machine that was manufactured in DCSElab and its products is considered to respond to the technical requirements of customers.
13
Li, Yan, e Wen Yang Dong. "The Anti-Seismic Numerical Simulation for a Multi-Storey Frame with Bamboo Engineering Materials". Advanced Materials Research 450-451 (gennaio 2012): 1284–87. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.1284.
Abstract (sommario):
Bamboo has many good features, is an ideal material for the construction industry. The numerical simulation of multi-layer seismic frame structure of bamboo by hand shows that, for re-bamboo wood columns, typical of the two failure modes for the transverse deformation is too large can not continue to load and top of the fibers in the lateral pressure exploded; bamboo column can be restored in the unloaded more than 80% of deformation, has excellent elastic recovery; bamboo can withstand the load beam is actually controlled by the stiffness, not strength.
14
Wulandari, Febriana Tri, e I. Gde Dharma Atmaja. "Analisis Perbandingan Sifat Fisika dan Mekanika Papan Laminasi Kayu Jati Putih (Gmelina arborea. Roxb) dan Papan Lamninasi Bambu Petung (Dendrocalamus asper)". Daun: Jurnal Ilmiah Pertanian dan Kehutanan 9, n. 2 (27 dicembre 2022): 67–75. http://dx.doi.org/10.33084/daun.v9i2.4186.
Abstract (sommario):
This study of laminated boards wants to compare laminated boards made of wood and non-wood raw materials. For wood, use white teak (Gmelina arborea. Roxb) and non-wood using petung bamboo (Dendrocalamus asper). Teak wood is easy to work either by machine or by hand. It has an average fiber length of 1.32 mm with a diameter of 24.8 μm. Teak wood is included in durable class 1 and strong class II, has a fairly good nail resistance and can withstand rust with the age of an old tree. Petung bamboo has a diameter that can reach 20 cm with a wall thickness of 1-3 cm, making it suitable for use as laminated bamboo. To see the difference in strength of the two boards, it is necessary to test the physical and mechanical properties. The purpose of this study is to compare the strength of the physical and mechanical properties of laminated boards made of wood and non-wood so that they can provide recommendations according to their use. The test values for physical and mechanical properties of white teak laminated boards and petung bamboo laminated boards showed no significant difference. All tests of physical and mechanical properties have met the standard except for the thickness shrinkage test for white teak laminated boards which did not meet the standards. Based on the value of testing the physical and mechanical properties, the laminated boards of white teak and petung bamboo are included in the strong class III which can be used for indoor construction materials.
15
Wegst, Ulrike G. K. "Bamboo and Wood in Musical Instruments". Annual Review of Materials Research 38, n. 1 (agosto 2008): 323–49. http://dx.doi.org/10.1146/annurev.matsci.38.060407.132459.
16
Böck, Felix. "Green gold of Africa – Can growing native bamboo in Ethiopia become a commercially viable business?" Forestry Chronicle 90, n. 05 (ottobre 2014): 628–35. http://dx.doi.org/10.5558/tfc2014-127.
Abstract (sommario):
With concerns about climate change and the search for sustainable construction materials, significant attention is now being paid to Africa's natural resources. Ethiopia, known as Africa's political capital, has a rapidly expanding economy with increasing demand for new construction materials. Through public private partnerships projects the country is developing a sustainable business model to promote bamboo as a raw material. The subtropical zone of Ethiopia is home to approximately 65% of Africa's bamboo resources, an area of over 1 million hectares. Bamboo is potentially an ideal source of local, sustainable purpose-engineered building materials for growing cities not only in Ethiopia but across Africa. Production of conventional construction materials such as steel and concrete is expensive, highly energy intensive and unsustainable, requiring large quantities of water and is strongly dependent on imported raw materials. Bamboo is a renewable building material widely cultivated in Ethiopia but not yet utilized in modern construction. Structural Bamboo Products (SBP), similar to engineered wood products, have excellent potential to partially replace the use of more energy-intensive materials. Projects such as African Bamboo are taking steps in managing, cultivating and using Ethiopian bamboo species to help mitigate rapid deforestation in East Africa by creating alternative “wood” sources and sustainable business opportunities.
17
Yusof, Ahmad Amirul Mukmin Yusof, Mohammad Sukri Mustapa, Ahmad Hamdan Ariffin, Mohd Rasidi Ibrahim, Mohd Idrus Mohd Masirin, Waluyo Adi Siswanto e Mutoh Yoshiharu. "The Effect of Bamboo Charcoal Powder on the Tensile Strength of Wood Plastic Composite". Materials Science Forum 1075 (30 novembre 2022): 79–85. http://dx.doi.org/10.4028/p-4952o3.
Abstract (sommario):
This research study was focused on the effect of bamboo charcoal powder on the tensile strength of wood plastic composite reinforced with rice husk ash (silica). This study used 3 different proportions of composite that is 10% bamboo charcoal powder-90% polypropylene, 20% bamboo charcoal powder-80% polypropylene and 30% bamboo charcoal powder-70% polypropylene with added rice husk ash of 0%, 5% and 10%. The size of the particle for the bamboo charcoal powder is 60μm. The method used to produce this wood plastic composite is by mixing and injection molding method. The test performed on the sample is tensile test and surface morphological test. It is observed that the tensile strength of the composite increased when the percentage of rice husk ash added increased. The highest tensile strength of the composite is at 10% rice husk ash reinforced with 10% bamboo charcoal powder and 90% polypropylene with value of 23.15 MPa. Overall, the proportion of 10% rice husk ash reinforced with 10% bamboo charcoal powder and 90% polypropylene showed the best result to enhance the wood plastic composite.
18
Wang, Tong, Jing Di e Hongliang Zuo. "Experimental study on bending behavior of glulam beams strengthened with bamboo scrimber". International Journal of Structural Integrity 13, n. 1 (19 ottobre 2021): 44–56. http://dx.doi.org/10.1108/ijsi-03-2021-0037.
Abstract (sommario):
PurposeIn view of the defects of glued wood beams, a new composite member – reconstituted bamboo board reinforced glued wood beams is proposed to improve the bearing capacity of glued wood beams.Design/methodology/approachThe bending test studied the ordinary glulam beams and the reinforced glulam beams with different layer numbers and different layer thicknesses by comparing with six kinds of glulam beams strengthened with bamboo scrimber and one kind of ordinary glulam beams and used the method of third-point stepwise loading on the glulam beams strengthened with bamboo scrimber.FindingsThe bamboo scrimber improved the bending behavior of the ordinary glulam beams. The 10 mm bamboo scrimber layer can meet the requirements of the maximum ultimate bending capacity and minimize the defects. So 10 mm bamboo scrimber layer was the optimal thickness. During the loading process, the strain change of the normal section of the reconstituted bamboo board reinforced glued wood beam basically conforms to the plane section assumption.Originality/valueThe bending rigidities of the glulam beams strengthened with bamboo scrimber increased up to 28.25%, 8.53% and 76.67%, and the ultimate bending capacity increased from 83.44% to 99.34% with the increase of the bamboo scrimber plate layers (the replacement rate). The ultimate bending capacities and the bending rigidities of the glulam beams strengthened with bamboo scrimber increased to 52.32%∼60.18% and 90.07%∼99.34% with the changing of the bamboo scrimber thicknesses from 7.1 mm to 25 mm.
19
Baiti, Risa Nurin, Sena Maulana, Wahyu Solafide Sipahutar, Rio Ardiansyah Murda, Fajar Aditya Julyatmojo, Astri Aulia Suwanda e Muhammad Saeful Fadlan. "Evaluation of surface properties of betung bamboo (Dendrocalmus asper) strands under various heat treatment duration and temperature". Journal of Science and Applicative Technology 5, n. 2 (13 ottobre 2021): 411. http://dx.doi.org/10.35472/jsat.v5i2.457.
Abstract (sommario):
The abundance, rapid growth characteristics and good mechanical properties have made betung bamboo as good alternative materials to replace the slow growing wood. To adress the susceptibility to insects and water attack, the making of bamboo composites, using resin as matrix, has been widely practiced. Thus, the surface properties of bamboo strands are crucial to determine the optimum interaction with resin. This study evaluate the effect of heat treatment to improve the surface properties of bamboo strands, such as the wettability and the color change. Beforehand, the freshly cut bamboo was cut, cleaned and sand-grinded. The heat treatment was done at 140o and 160oC for 1, 2, and 3 hours. After cooling down to room temperature, the contact angle of bamboo’s surface was measured by sessile drop methode. The wettability was indicated by constant of contact angle change rate, K. Besides, the change of color was also determined. After the experiments, it was obtained that the bamboo surface tends to be more hydrophobic and has darker color with longer duration of heat treatment. Higher temperature and longer duration of heat treatment can cause more evaporation of liquid inside bamboo and decrease hydrophilicity of the surface.
20
Wang, Zhe, Feng-Yu Huang, Yan Liu, Fa-Cheng Yi, Yuan Feng, Ying Luo, Wen-Jing Jia e Zhen-Yu Wang. "Adsorption properties and mechanism of uranium by three biomass materials". Radiochimica Acta 110, n. 1 (9 novembre 2021): 23–35. http://dx.doi.org/10.1515/ract-2021-1078.
Abstract (sommario):
Abstract Wood fibers, bamboo fibers and rice husk were applied to the adsorption of uranium from aqueous solution to understand the uranium adsorption behavior and mechanism by these natural sorbents. The effects of time, adsorbent particle size, pH, adsorbent dosage, temperature and initial concentration were studied using batch technique. The adsorption mechanism was discussed by isothermal adsorption models, adsorption kinetic models. The results suggested that the three biomass adsorbents showed great efficiency of adsorption for uranium. The adsorption capacity of biosorbents of comparatively small particle size and large dosage is quite high. Uranium adsorption achieved a maximum adsorption amount at around pH 3 for wood fibers and bamboo fibers, and around pH 5 for rice husk. All isotherms fitted well to the Langmuir Freundlich and D-R equation, indicating that the adsorption process is favorable and dominated by ion exchange. Rice husk had a highest adsorption capacity, followed by bamboo fibers, while wood fibers had little uranium adsorption under the studied conditions, and the adsorption capacity was 12.22, 11.27 and 11.04 mg/g, respectively. The equilibrium data was well represented by the pseudo-second-order kinetics, indicating that the adsorption rate was controlled by chemical adsorption. Ion exchange was the main adsorption mechanism, and the exchange ions were mainly Na+ and K+.
21
Hoang Hiep, Nguyen, Vo Tuyen, Le Khanh Dien e Nguyen Tan Hung. "A study on the design of bamboo grinding machine". Science & Technology Development Journal - Engineering and Technology 3, SI1 (12 aprile 2020): First. http://dx.doi.org/10.32508/stdjet.v3isi1.734.
Abstract (sommario):
Bamboo is a sustainable and environmentally friendly material that has the potential to improve the global decline of natural resources. Bamboo is one of the popular flora in Southeast Asia; it is also traditional plants that grow abundantly in Vietnamese villages from north to south. Its ability can replace some kinds of wood in decoration and household goods. Bamboo grows up rapidly and can be harvested within 3 to 5 years of planting, in the meanwhile, the harvesting time of other hardwood trees must be from 8 to 10 years or longer. The inherent characteristics of bamboo are lighter than other wood materials and have a value in social and environmental benefits. Its advances in manufacturing technology have created high-value products such as bamboo flooring and bamboo furniture that can substitute for wood flooring and wood furniture. According to the biology studies, the bamboo has the characteristics that can replace the natural wood, but the direction of development from the stage of cultivation to the stage of finished products has not been exploited thoroughly. The production of bamboo plywood will become a great potential for the bamboo plywood industry in Vietnam. Generally, the fabrication of bamboo plywood depends on the following processes such as cutting, grinding to powder or pulp, drying, and pressing processes. In cutting and grinding processes, the trivial remains of bamboo after use, shoots… can be chopped and ground to a powder that is dried and pressed into bamboo plywood by a specialized machine similar to the production of artificial wood particleboard (PB). The aim of this paper is a representation of a design, computing the structure of a version of a bamboo grinding machine that is sustainable, responds to technical requirements, and protection of the environment. The result of the design was applied for manufacture a typical bamboo machine in the CAD-CAM workshop of DCSELAB in the framework of a project between DCSELAB and PhuAn Village Corporation that has evaluated with satisfaction the real proof of the design. The machine has been in the session of initial testing and exploitation.
22
Jeon, Woo-Seok, Yun-Ki Kim, Ju-Ah Lee, Ah-Ran Kim, Byantara Darsan, Woo-Yang Chung e Nam-Hun Kim. "Anatomical Characteristics of Three Korean Bamboo Species". Journal of the Korean Wood Science and Technology 46, n. 1 (gennaio 2018): 29–37. http://dx.doi.org/10.5658/wood.2018.46.1.29.
23
Huang, Yanhui, e Benhua Fei. "Comparison of the mechanical characteristics of fibers and cell walls from moso bamboo and wood". BioResources 12, n. 4 (19 settembre 2017): 8230–39. http://dx.doi.org/10.15376/biores.12.4.8230-8239.
Abstract (sommario):
Bamboo and wood fibers are important raw materials for pulp and papermaking, as well as fiber-reinforced composites. The mechanical properties of single fibers and the cell walls of moso bamboo (Phyllostachys heterocycla), Masson pine (Pinus massoniana), and Chinese fir (Cunninghamia lanceolata) were tested via single fiber tensile test and nanoindentation; their fracture characteristics were also compared. The single fibers and cell walls of moso bamboo had superior mechanical properties compared with those of Masson pine and Chinese fir. The bamboo fibers exhibited high strength, high elasticity, and superior ductility. The results indicated that the differences between the mechanical properties of the fiber cells and cell walls of moso bamboo and those of wood were largely dependent upon cell shape and structure.
24
Chen, Aonan, Yi Liang, Zhilin Jiang e Jianping Sun. "Prediction of elastic modulus and mid-span deflection of bamboo-wood composite laminates". BioResources 16, n. 4 (4 ottobre 2021): 7784–98. http://dx.doi.org/10.15376/biores.16.4.7784-7798.
Abstract (sommario):
To better guide the manufacturing of bamboo-wood composite laminates, classical theory, first-order shear theory, and finite element method were used to predict the elastic modulus and deflection of bamboo-wood composite laminates. The influence of the adhesive layer on the elastic modulus and deflection of composite materials was considered. The effect of transverse shear on the mechanical properties of materials became smaller and smaller with an increasing span-to-height ratio. The effects of the adhesive layer on the elastic modulus and deflection were ± 0.5% and -0.1% to 0.3%, respectively. The transverse elastic modulus and mid-span deflection predicted by the three methods were quite different from the experimental results. When the span-to-height ratio was equal to 20, the prediction error of longitudinal elastic modulus by the three methods was less than 6%, which can be used to predict the elastic modulus of composite materials. The results provide a novel method to predict the properties of bamboo-wood composite laminates.
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Yang, Bajin, Xu Guo, Wu Chen, Xingyu Wang, Guanben Du e Chunlei Dong. "Research on Gluing Properties of Thick Bamboo–Wood-Oriented Strand Boards". Forests 14, n. 10 (19 ottobre 2023): 2094. http://dx.doi.org/10.3390/f14102094.
Abstract (sommario):
This study investigated the effects of adhesive resination and bamboo strand content on the physical and mechanical properties of thick bamboo–wood-oriented strand board (BWOSB), such as the air dry density (ADD), internal bond strength (IB), water absorption thickness swelling (TS), modulus of rupture (MOR), modulus of elasticity (MOE), and gluing properties. The raw materials used included large strands prepared from Chinese fir (Cunninghamia lanceolata), bamboo (Phyllostachys edulis), and modified isocyanate resin (PMDI). In this study, BWOSB specimens with different adhesive resination and bamboo strand content were fabricated, and their physical–mechanical properties were examined. It was found that the physical and mechanical properties of BWOSB with 8% PMDI resination were better than those with 5%, and their gluing damage was mostly in the form of the tearing of the raised vascular bundles of bamboo strands and the wood-breaking damage of wood strands. With the increase in the proportion of bamboo strands, the internal bonding strength and the short-span shear strength of BWOSB showed a tendency to decrease at first and then increase. The swelling rate of the water absorption thickness showed a tendency to decrease, and the other properties of BWOSB did not show a clear correlation with the change in the proportion of bamboo strands. The unique gluing interface between the bamboo and wood strands, which either used the “keyway” type of gluing effect or the “nail” type of gluing effect, determined the gluing performance of BWOSB, and the proportion of bamboo and wood strands influenced the gluing interface and gluing type of BWOSB, which ultimately affected the gluing performance of BWOSBs. The proportion of bamboo and wood strands also affected the gluing properties of BWOSBs by influencing the gluing interface and gluing type. This study provides a reference for the development of the production process of thick BWOSB and its application in the field of heavy load construction.
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Komariah, Iis siti. "SENI KERAJINAN PERPADUAN LIMBAH KAYU JATI DAN AKAR BAMBU DI FLODISTA BALE ROSO TAMANSARI BONDOWOSO". Jurnal Pendidikan Seni Rupa Undiksha 11, n. 3 (17 dicembre 2021): 244–53. http://dx.doi.org/10.23887/jjpsp.v11i3.42056.
Abstract (sommario):
Abstrak Penelitian ini bertujuan untuk mengetahui (1) alat dan bahan yang di gunakan dalam pembuatan Seni Kerajinan Perpaduan Limbah Kayu Jati Dan Akar Bambu Di Flodista Bale Roso Tamansari Bondowoso, (2) proses pembuatan Seni Kerajinan Perpaduan Limbah Kayu Jati Dan Akar Bambu Di Flodista Bale Roso Tamansari Bondowoso, (3) mengetahui jenis dan hasil peroduk Seni Kerajinan Perpaduan Limbah Kayu Jati Dan Akar Bambu Di Flodista Bale Roso Tamansari Bondowoso. Sasaran Penelitian ini adalah pemilik dan perajinLimbah Kayu Jati Dan Akar Bambu Di Flodista Bale Roso Tamansari Bondowoso. Penelitian ini adalah penelitian deskriptif kualitatif. Teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara, dokumentasi, dan kepustakaan. Data yang terkumpul kemudian dianalisis dengan caraanalisis domaindan analisis taksonomi. Hasil penelitian menunjukkan bahwa (1) Alat yang digunakan dalam peroses pembuatan kerajinan limbah kayu jati dan akar bambu ini yaitu: gergaji, palu, mesin gerinda, meteran, mesin bor, tang, kuas, kapak, (2) proses pembuatan kerajinan limbah kayu jati dan akar bambu dimulai dengan proses pemerolehan limbah kayu, proses pemilihan bahan, proses pemotongan bahan, proses penyusunan atau penempelan, proses pendetailan atau penghalusan, proses pembersihan, proses finishing, (3) produk yang dihasilkan pengrajin limbah kayu jati dan akar bambu berbentuk hewan seperti: bebek, angsa, kuda, domba, ayam.Kata kunci: Limbah kayu jati dan akar bambu, Produk, Flodista AbstractThis study aims to determine (1) the tools and materials used in the manufacture of a combination of teak wood waste and bamboo roots at Flodista Bale Roso Tamansari Bondowoso, (2) the process of making a combination of teak wood waste and bamboo roots at Flodista Bale Roso. Tamansari Bondowoso, (3) to find out the types and results of the products of the Combination of Teak Wood Waste and Bamboo Roots at Flodista Bale Roso Tamansari Bondowoso. The target of this research is the owners and craftsmen of Teak Wood and Bamboo Root Waste at Flodista Bale Roso Tamansari Bondowoso. This research is a qualitative descriptive research. Data collection techniques used are observation, interviews, documentation, and literature. The collected data is then analyzed by means of domain analysis and taxonomic analysis. The results showed that (1) the tools used in the process of making teak wood waste and bamboo roots are: saws, hammers, grinding machines, meters, drilling machines, pliers, brushes, axes, (2) the process of making teak wood waste crafts and bamboo roots starting with the process of obtaining wood waste, the process of selecting materials, the process of cutting materials, the process of preparing or pasting, the process of detailing or refining, the cleaning process, the finishing process, (3) the products produced by the craftsmen of teak wood waste and bamboo roots are in the form of animals such as : duck, goose, horse, sheep, chickenKey words : Waste teak wood and bamboo roots, product, Flodista
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Feng, Yongshun, Xin Pan, Hui Qiao e Xiaowei Zhuang. "Preparation and Characterization of a Novel Lightweight Bio-Degradable Lignocellulosic Porous Molding Material". Buildings 14, n. 1 (23 dicembre 2023): 49. http://dx.doi.org/10.3390/buildings14010049.
Abstract (sommario):
Wood is an abundant biomaterial and widely used in construction and furniture. Timber processing produces large amounts of residues and byproducts, which are of low value. In this study, we proposed a new strategy for the recycle of wood residues to prepare a wood porous molding material. A hydrated thermochemical grinding process followed by high-temperature and high-pressure refining was developed to convert wood powder into high-viscosity suspension. Lignocellulosic raw materials, including pine wood, beech wood, and bamboo, were compared with different grinding time. A porous material without the addition of synthetic adhesive was obtained with a density in the range of 0.28–0.67 g/cm3. The porous molding material was characterized based on fiber morphology, volume, and porosity and mechanical performance. Pores of different sizes were distributed in the samples randomly after curing and drying. The wood’s own bindings were released through the hydrated thermochemical grinding process. The porous sample made from bamboo with a grinding time of 6 h showed a high Young’s modulus (681.1 MPa), compactness (166.8 N/Sec), and hardness (517.6 N). Woody materials were more readily made into moldings since most of the cellulose crystal structure remained intact. The wood porous moldings are fully composed of lignocellulosic components and easy to recycle. This porous green material has great potential to be applied to insulation, ceiling, cabinet, and packaging.
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Kitiyanun, Krittapat, Waranon Kongsong, Seree Tuprakay, Sirawan Ruangchuay Tuprakay, Boontham Harnphanich, Chaiwat Poowarakulchai e Chaleeporn Thammapornram. "Mechanical Properties of Parallel TDG Bamboo Laminated Columns with Tough and Grove Joints". Designs 6, n. 6 (1 novembre 2022): 107. http://dx.doi.org/10.3390/designs6060107.
Abstract (sommario):
The problem of bamboo’s strength depends on the length used. From past experiments, it was found that the physical properties of bamboo have thickness at the bottom and a tapered end, resulting in the strength of the bamboo in each part being different. The bottom part can resist more compression than the tip, which corresponds to the physical characteristics of bamboo. To use bamboo for main construction, such as columns, many select raw bamboo that measures approximately 3 m from the ground and is considered the strongest part. The present bamboo laminated products are limited to 2.4 m in length due to the capabilities of today’s compression machines and the factor of length as mentioned above. The column is an important infrastructure, which must have sufficient strength and capacity to solve the problem of high space. However, based on the above limitations, it is particularly important to study the connectivity of increasing column length. A wood joint is a traditional method to secure two pieces of wood together. Tongue and groove joints are most common in floorings, such as wood flooring, laminate flooring, and flooring. One of the hardest methods of securing wood is end to end of edge to edge. In order to further develop green building materials, TDG bamboo is processed into laminated columns (TDGLC). It is considered important because, in addition to increasing income for farmers, it will also enable the development of building materials to replace wood in the future. Therefore, this research demonstrates the benefits of developing locally available materials such as bamboo. To develop laminated bamboo columns for use in a structure, we chose 3–4-year-old TDG bamboo and glued it to obtain a 100 mm cross-section column in order to maximize the benefits of using TDG bamboo for real use. Test specimens are joined by tongue-groove joints to a column length of 1 m, 2 m, and 3 m by joining joints in four different areas: Top (T), middle (M), top-bottom (TB), and bottom (B), to test for compressive strength. The test results showed that TDGLC+TG at the top specimens 4L01 T–4L03T can resist a load range of 100–65%, and for the middle specimen 4L01 M–4L03 M, the load is between 88 and 57%. At the top-bottom 4L01 TB–4L03 TB, the load is between 30 and 20%. At the bottom 4L01 B–4L03 B, the load is between 28 and 18%.
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Solihat, Raizal Fahmi, e Yogi Saputra. "ANALISIS KEKUATAN PATAH DAN DAYA SERAP AIR PAPAN KOMBINASI SERAT DENGAN LAMINASI BAMBU BETUNG (Dendrocalamus asper)". Wanamukti: Jurnal Penelitian Kehutanan 22, n. 1 (10 novembre 2021): 33. http://dx.doi.org/10.35138/wanamukti.v22i1.327.
Abstract (sommario):
The problem faced by the wood processing industry in Indonesia today is the shortage of wood raw materials. This occurs because the speed at which timber is used is not balance with the speed at which new stands are build. Meanwhile, the need for wood for furniture, building materials and other needs continues to increase in line with population growth. Therefore, it is necessary to find alternative raw materials for the wood processing industry. Bamboo is one material that can be use for this purpose. Bamboo is a long fiber and has advantages in terms of the harvest period, namely within 3-4 years it can be harvested, shorter than 8-20 years for fast-growing timber species. In this research, a combination of fiber and laminate boards with epoxy adhesive. The material used is the type of betung bamboo (Dendrocalamus asper) and then tested on the combination of fiber and laminated bamboo boards there are 3 tests, namely fracture strength, absorption capacity and density. The results of this research indicate that from the treatment of 255g adhesive and 127.5g of fiber has a higher average compared to 127.5g of adhesive and 255g of fiber. From the test results, the combination of fiberboards and laminate boards as HDF (Hard Dencity Fiberboard) classified which can be used for materials for making adhesive walls, ceilings, pinyi and containers. However, in contrast to the 127.5g adhesive and 255g fiber treatment included in the MDF (Medium Dencity fiberboard) classification, furniture such as household appliances, molding, window frames, door skins and car dashboards are used.
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Hu, Fu, Lifen Li, Zhigang Wu, Liping Yu, Baoyu Liu, Yan Cao e Hailong Xu. "Surface Characteristics of Thermally Modified Bamboo Fibers and Its Utilization Potential for Bamboo Plastic Composites". Materials 15, n. 13 (25 giugno 2022): 4481. http://dx.doi.org/10.3390/ma15134481.
Abstract (sommario):
Bamboo fibers are considered as a more attractive option for the reinforcement of wood plastic composites as compared to wood fiber due to its fast growth rate and good toughness. Heat treatment is an environment-friendly method of improving the integrated performance of bamboo materials. This paper highlights the heat treatment of bamboo fiber for suitable properties as reinforcements in bamboo plastic composites. The effects of vacuum heat treatment on the surface characteristics of bamboo fibers and the properties of bamboo plastic composites were analyzed by studying the chemical composition, surface elements and polarity of bamboo fiber before and after treatment, and the physical and mechanical properties of bamboo plastic composite. The results showed that after vacuum heat treatment, the bamboo fibers became darker and experienced a transition from green to red. Moreover, FTIR, XPS and contact angle analysis indicated that the hemicellulose content, the oxygen/carbon ratio and the polar component of the bamboo fiber had a decreasing trend as the treatment temperature increased. In addition, the 24 h water absorption and the 24 h thickness expansion rate of the water absorption showed a trend of first decreasing and then increasing as the treatment temperature increased, while the bending performance of bamboo plastic composite showed a trend of increasing first and then decreasing as a result of increased treatment temperature. Therefore, a combined process of vacuum heat treatment and the addition of MAPE could improve the physical and mechanical properties of bamboo plastic composites to a certain extent.
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Siregar, Sri Hilma, Syafri Rahmadini, Nasution Hasmalina, Ramadhanti Aulia Rizki e Kafri Eri. "Pulp synthesis using bamboo raw materials through unbleached and bleached processes". Acta Chimica Asiana 6, n. 1 (11 febbraio 2023): 247–53. http://dx.doi.org/10.29303/aca.v6i1.135.
Abstract (sommario):
This study aims to see the potential of bamboo as a new raw material for the Indonesian pulp industry, specifically for the manufacture of pulp products, because in Indonesia, the import value for dissolving is still high, and the raw materials used still use wood plants. This study consists of three stages: the pre-hydrolysis stage using water, the cooking stage with the kraft pulping method, and bleaching using the elemental chlorine-free (ECF) method. Bamboo flakes that run into the pre-hydrolysis process decreased the Kappa Number value of pulp produced, which ranges from 4.63% - 14.52% compared to bamboo flakes that do not run into the pre-hydrolysis process. The brightness increase to 0.844% - 2.96% compared to bamboo flakes that do not run into the process of pre-hydrolysis. For pulp products, the value of Alpha Cellulose obtained is around 89.18% - 90.32%.
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Wulandari, Febriana Tri, Radjali Amin e Dini Lestari. "ANALISIS SIFAT FISIKA DAN MEKANIKA PAPAN LAMINASI KOMBINASI KAYU SENGON BAMBU PETUNG DAN KEMIRI BAMBU PETUNG". Jurnal Sylva Scienteae 6, n. 6 (2 dicembre 2023): 1018. http://dx.doi.org/10.20527/jss.v6i6.11109.
Abstract (sommario):
Bamboo has various advantages such as relatively cheap price, fast growing, physical and mechanical properties comparable to wood, and suitable for application with existing processing technologies. A combination of wood and bamboo laminated boards is an attractive choice in wood and bamboo processing. Previous studies have shown that testing of physical and mechanical properties has been carried out on laminated boards made from wood or bamboo only. Information regarding laminated boards with a combination of wood and non-timber is still very limited. Laminate boards are made from a combination of sengon-petung bamboo and kemiri-petung wood. The selection of sengon and candlenut wood as raw materials because they have a light specific gravity of 0.4 and 0.33-0. Wood with a light to medium density is very suitable for use as a raw material for laminated boards due to easier penetration of the adhesive onto the wood surface. The aim of this study was to investigate the effect of a combination of petung bamboo sengon wood and petung bamboo candlenut wood on the physical and mechanical properties of laminated boards. The method used was an experimental method with a non-factorial design with 2 treatments and 3 replications. The combined type treatment had no significant effect on the density, thickness expansion, thickness shrinkage and MoR tests, while the MoE and moisture content tests had a significant effect. Testing the physical and mechanical properties, the laminated board combination of candlenut wood and petung bamboo (J2) has a higher value than the combination of sengon wood and petung bamboo (J1). Based on the test results, the combination of the combination of kemiri wood, bamboo petung and sengon wood, bamboo petung is included in the strength class III which can be used for protected heavy construction purposesBambu memiliki berbagai kelebihan seperti harga yang relative murah, cepat tumbuh, memiliki sifat fisika dan mekanika sebanding dengan kayu, dan cocok diaplikasikan dengan teknologi pengolahan yang telah ada. Papan laminasi kombinasi dari kayu dan bambu menjadi pilihan yang menarik dalam pengolahan kayu dan bambu. Penelitian sebelumnya menunjukkan bahwa pengujian sifat fisika dan mekanika telah dilakukan pada papan laminasi berbahan baku kayu atau atau bambu saja. Informasi mengenai papan laminasi dengan kombinasi kayu dan non kayu masih sangat terbatas. Papan laminasi dibuat dari kombinasi kayu sengon-bambu petung dan kayu kemiri-bambu petung. Pemilihan kayu sengon dan kemiri sebagai bahan baku karena memiliki berat jenis ringan yaitu 0,4 dan 0,33-0. Kayu dengan berat jenis ringan sampai sedang sangat cocok digunakan sebagai bahan baku papan laminasi terkait penetrasi perekat lebih mudah ke permukaan kayu. Penelitian bertujuan untuk pengaruh kombinasi kayu sengon bambu petung dan kayu kemiri bambu petung terhadap sifat fisika dan mekanika papan laminasi. Metode yang digunakan metode eksperimen dengan rancangan non faktorial dengan 2 perlakuan dan 3 kali ulangan. Perlakuan jenis kombinasi berpengaruh tidak nyata pada pengujian kerapatan, pengembangan tebal, penyusutan tebal dan MoR sedangkan pada pengujian MoE dan kadar air berpengaruh nyata. Pengujian sifat fisika dan mekanika maka papan laminasi kombinasi kayu kemiri dan bambu petung (J2) memiliki nilai yang lebih tinggi dibandingkan dengan papan laminasi kombinasi kayu sengon dan bambu petung (J1). Berdasarkan hasil pengujian papan laminasi kombinasi kayu kemiri bambu petung dan kayu sengon bambu petung masuk dalam kelas kuat III yang dapat dimanfaatkan untuk keperluan konstruksi berat yang terlindungi.
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Khanh Dien, Le, Tran Van Hung, Hoang Duc Lien e Svetlin Antonov. "A Design of Bamboo Plywood Pressing Machine". Science & Technology Development Journal - Engineering and Technology 3, SI1 (12 aprile 2020): First. http://dx.doi.org/10.32508/stdjet.v3isi1.735.
Abstract (sommario):
Bamboo is very popular in the countryside of almost all Southeast countries, particularly in Vietnam. Its ability can replace some kinds of wood in decoration and household goods. Bamboo grows up rapidly and can be harvested within 3 to 5 years of planting; in the meanwhile, the harvesting time of other hardwood trees must be from 8 to 10 years or longer. The inherent characteristics of bamboo are lighter than other wood materials and have a value in social and environmental benefits. Its advances in manufacturing technology have created high-value products such as bamboo flooring and bamboo furniture that can substitute for wood flooring and wood furniture. Bamboo plywood presses play an important role in the production of bamboo plywood in the industry. The machine has the function of pressing bamboo powder, and binder has been mixed from the front to the bamboo plank to meet the technical requirements. This article presents a design of bamboo plywood pressing machine that combines the heating function for the blocking board and keeps that temperature during the pressing process to create a suitable size bamboo plywood according to customer requirements. The simulation results show that the complete bamboo plywood-pressing machine is appropriate and authentic to the initial design. The result of the design was applied to manufacture the machine in DCSELAB workshop via a collaboration project between Langtre PhuAn company and the DCSELAB. The system is installed a resistance flat plate capacity of 1KW, and 2 resistors flat plate with the capacity of 0.8KW. The first manufactured machine is now in the initial working session in Langtre Villige, Binh Duong province. The initial experimental products were accepted by the partner company, and we have recommended some measures to ameliorate time by time the quality as well as the productivity of the machine. There is really not yet an official statistic on the comparison with the products of a similar machine, and we are attending the response of the customers.
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Tawachkultanadilok, Pimrapus, Nattawut Osakoo, Chalermpan Keawkumay, Krittanun Deekamwong, Narongrit Sosa, Catleya Rojviriya, Supinya Nijpanich, Narong Chanlek, Sanchai Prayoonpokarach e Jatuporn Wittayakun. "Synthesis and Characterization of Zeolite NaY Dispersed on Bamboo Wood". Materials 16, n. 14 (11 luglio 2023): 4946. http://dx.doi.org/10.3390/ma16144946.
Abstract (sommario):
Zeolites in powder form have the potential to agglomerate, lowering access to active sites. Furthermore, a suspension of fine zeolite powder in liquid media is difficult to separate. Such drawbacks could be improved by dispersing zeolite crystals on support materials. This work demonstrates the dispersion of zeolite NaY crystals on bamboo wood by mixing the wood with zeolite gel before hydrothermal treatment. The syntheses were performed with acid-refluxed and non–refluxed wood. The phase of zeolites, particle distribution and morphology, zeolite content in the wood, and zeolite–wood interaction were investigated using X-ray diffraction, X-ray tomography, scanning electron microscopy, thermogravimetric analysis, nitrogen sorption analysis, and X-ray photoelectron spectroscopy. Higher zeolite content and better particle dispersion were obtained in the synthesis with the acid–refluxed wood. The composite of NaY on the acid-refluxed wood was demonstrated to be an effective adsorbent for Ni(II) ions in aqueous solutions, providing a higher adsorbed amount of Ni(II) per weight of NaY.
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Hu, Ailian, Chungui Du, Yating Hua, Yingying Shan, Chunlin Liu, Shiqin Chen, Qi Li e Hongwei Yu. "Preparation and Flame Retardant Properties of Calcium–Aluminium Hydrotalcite with Root Cutting Silicate Layers as Bamboo Flame Retardants". Materials 14, n. 23 (29 novembre 2021): 7319. http://dx.doi.org/10.3390/ma14237319.
Abstract (sommario):
Bamboo has been widely used in architecture, decoration and other fields because of its advantages of short growth period, high strength and degradability. However, bamboo, as a combustible material like wood, are easy to burn and cause building fires. However, the existing bamboo water-based flame retardants have some shortcomings, such as strong hygroscopicity and easy loss, which limits the application of bamboo products. In order to improve the flame retardant performance of bamboo, CaAl-SiO2 layered double hydroxide (LDH) as bamboo flame retardant was synthesised by coprecipitation method. The influence of preparation technology on CaAl–SiO3–LDH structures and properties as well as the flame retardant and smoke suppression characteristics of flame retardant-treated bamboo was discussed. The results revealed that the crystallisation temperature, crystallisation time and crystallisation concentration of CaAl–SiO3–LDHs considerably affected its structure and properties. The optimum technological parameters for preparing CaAl–SiO3–LDHs by using the coprecipitation method are as follows: crystallisation temperature of 100 °C, crystallisation time of 9 h and Ca2+ solution molar concentration of 0.33 mol/L. Compared with nonflame-retardant wood, CaAl–SiO3–LDH flame retardant treatment delayed the peak time of the heat release rate by 20 s and the ignition time by 77.78% and increased the carbon residue rate by 9.54%. This study can provide reference for the research of new flame retardant for bamboo products.
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LEE, Hyoung-Woo, Eun-Ju LEE, Yoon-Jung SHIN, Ha-Yeong JO e Dae-Yeon SONG. "Surface Discoloration of Ultraviolet (UV)-Irradiated Phyllostachys bambusoides Bamboo". Journal of the Korean Wood Science and Technology 51, n. 3 (maggio 2023): 173–82. http://dx.doi.org/10.5658/wood.2023.51.3.173.
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Wulandari, Febriana Tri, e Radjali Amin. "Sifat Fisika Papan Laminasi Kombinasi Kayu Sengon dan Bambu Petung (Dendrocalamus asper)". Empiricism Journal 4, n. 1 (12 giugno 2023): 61–68. http://dx.doi.org/10.36312/ej.v4i1.1200.
Abstract (sommario):
Penelitian ini mengkombinasikan bahan baku dari kayu sengon dengan non kayu yakni bambu petung menjadi produk laminasi. Sengon memiliki beberapa kelemahan yaitu berat jenisnyanya yang ringan yakni sekitar 0,33 dengan kelas kuat III-IV sehingga tidak layak digunakan sebagai bahan kontruksi karena masuk dalam kelas kuat. Sedangkan bambu petung memiliki karakteristik dasar mirip dengan kayu bahkan dalam beberapa hal bambu petung memiliki keunggulan dibandingkan kayu. Keunggulan bambu petung selain kekuatan mekaniknya yang kuat, bambu ini dapat mudah ditemukan di daerah tropis dan waktu tumbuh yang dominan cepat. Penelitian ini bertujuan untuk mengetahui pengaruh berat labur terhadap sifat laminasi dari kombinasi kayu sengon dengan bambu petung dan mengetahui pengaruh pembuatan laminasi kombinasi kayu sengon bambu petung terhadap peningkatan kelas kuat. Metode yang digunakan dalam penelitian menggunakan metode eksperimen dengan rancangan percobaan yang digunakan Rancangan Acak Lengkap (RAL) non faktorial. Hasil penelitian menunjukkan bahwa nilai rata-rata kerapatan papan laminasi kayu sengon bambu petung yakni 0,50 gr/cm3, dengan kisaran nilai kadar air rata-rata yakni sebesar 13,86% Nilai kadar ini telah memenuhi standar JAS 234:2003 yaitu kurang dari 15%. Terjadi peningkatan kelas kuat menjadi kelas kuat III yang dapat digunakan sebagai bahan kontruksi ringan. Pengujian sifat fisika papan laminasi kayu sengon bambu petung telah memenuhi standar SNI 01-6240-2000 dan JAS SE-7 2003. Physical Properties of Combination Laminated Boards of Sengon Wood and Petung Bamboo (Dendrocalamus asper) Abstract This study combined raw materials from sengon wood with non-wood, namely petung bamboo, to produce laminated products. Sengon has several weaknesses, namely its light specific gravity which is around 0.33 with a strength class III-IV so it is not suitable for use as a construction material because it is included in the strength class. Meanwhile, petung bamboo has basic characteristics similar to wood, even in some ways petung bamboo has advantages over wood. The superiority of petung bamboo besides its strong mechanical strength, this bamboo can be easily found in tropical areas and has a dominantly fast growing time. This study aims to determine the effect of labur weight on the lamination properties of the combination of petung bamboo and sengon wood and to determine the effect of making a combination of petung bamboo sengon wood on the increase in strength class. The method used in this study used an experimental method with an experimental design using a non-factorial Completely Randomized Design (CRD). The results showed that the average density of petung bamboo sengon wood laminated boards was 0.50 gr/cm3, with an average moisture content range of 13.86%. 15%. There was an increase in the strength class to become strong class III which can be used as a lightweight construction material. Testing of the physical properties of petung sengon bamboo wood laminated boards complied with SNI 01-6240-2000 and JAS SE-7 2003 standards.
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Subyakto, Subyakto, Ismail Budiman e Gustan Pari. "Effects of Temperature and Time of Carbonization on the Properties of Bamboo (Dendrocalamus asper) Carbon". Wood Research Journal 4, n. 1 (19 aprile 2017): 68–73. http://dx.doi.org/10.51850/wrj.2012.3.2.68-73.
Abstract (sommario):
Lignocellulosic materials such as wood and bamboo have special characteristics when carbonized at high temperature. For example the electrical conductivity of wood and bamboo increases when carbonized at temperature of 800°C or higher. This property can be used for developing smart materials such as fiber reinforced concrete which has function as sensors for load, damage or temperature. In this experiment, betung bamboo (Dendrocalamus asper) was carbonized at different temperatures and times of carbonization. The purpose of this experiment was to observe the effect of temperature and time of carbonization on the properties of bamboo carbon. Bamboo in the form of particles were carbonized at temperature of 400°C for 300 min and continued at temperatures of 700, 800, or 900°C for 45, 60, or 90 min. Carbon properties such as yield, fixed carbon, volatile matters, and ash content were determined. Structure properties were studied by X Ray Diffraction (XRD), morphological properties were observed by Scanning Electron Microscope (SEM), and electrical conductivity was measured using LCR meter. Result shows that increasing temperature and time of carbonization have significant effects on the structure and other properties of bamboo carbon. Carbonization at temperature of 800°C for 60 min was considered as an optimum condition.
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Sinha, Arijit, e Milo Clauson. "Properties of Bamboo–Wood Hybrid Glulam Beams". Forest Products Journal 62, n. 7-8 (dicembre 2012): 541–44. http://dx.doi.org/10.13073/fpj-d-13-00007.1.
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Будаш, Ю. О., Є. В. Кучеренко, В. П. Плаван, Я. В. Фещенко e О. І. Верейко. "ПОРІВНЯЛЬНИЙ АНАЛІЗ РОЗМІРНИХ ХАРАКТЕРИСТИК НЕДЕРЕВНИХ ВОЛОКОН РІЗНОЇ ПРИРОДИ". Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 118, n. 1 (8 maggio 2018): 43–50. http://dx.doi.org/10.30857/1813-6796.2018.1.5.
Abstract (sommario):
Comparison of dimensional characteristics of various non-wood fibers (flax, hemp, bamboo, cotton), which can be used as an additional component in the production of non-woven composite materials from synthetic fibrous waste. The structure of the fibers was studied by optical polarization microscopy. The dimensional characteristics of the fibers were determined by the method of analyzing digital images, followed by statistical processing and graphical analysis of the obtained data. A quantitative comparative analysis of the transverse dimensions and distribution for this indicator for non-wood fibers of various natural origin: flax, hemp, bamboo, cotton. It has been established that the average transverse dimensions of the initial fibers of flax and hemp are higher than for bamboo and cotton fibers with greater variability of this index and a pronounced asymmetry of the distribution towards valuesgreater than the average. Based on a detailed statistical analysis of microscopic images, differences in the transverse dimensions of non-wood fibers of different natural origin are established. The results obtained can be used to produce nonwoven composite materials with predictable properties.
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Zhu, Yuan, Pei Ying Liu e Zhi Hong Jiang. "The Creep Behavior of Wood-Polymer Composites". Advanced Materials Research 815 (ottobre 2013): 632–38. http://dx.doi.org/10.4028/www.scientific.net/amr.815.632.
Abstract (sommario):
The creep behavior of WPCs needs to be addressed when developing and using this kind of materials. In this paper, the creep behavior of WPCs under linear viscoelastic region was investigated at different temperatures and bamboo flours levels. The creep compliance increase with the rise of temperature, the addition of bamboo flour has a positive effect on the creep behavior. Burgers model, Findley power law and TTSP were used to predict the long-term behavior of this kind material. Finely power law can well describe the creep properties of WPCs while Burgers model begins to diverge from measured data at about 100min. The application of TTSP was used to create master curve covered more than 108 from 30-min short-term creep compliance curves.
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Wang, Qingping, Xing'e Liu e Shumin Yang. "Predicting Density and Moisture Content of Populus xiangchengensis and Phyllostachys edulis using the X-Ray Computed Tomography Technique". Forest Products Journal 70, n. 2 (1 marzo 2020): 193–99. http://dx.doi.org/10.13073/fpj-d-20-00001.
Abstract (sommario):
Abstract Density (D) and moisture content (MC) are two important physical properties of wood and bamboo, which are highly correlated with many other physical and mechanical properties. In this study, the X-ray computed tomography (CT) technique was used to determine the D and MC of poplar (Populus xiangchengensis) and bamboo (Phyllostachys edulis). There was a statistically significant difference in the CT-measured numbers for D and MC between these species. The D-CT and MC-CT linear models for both species were independently established: Dpoplar = 0.00098 × H + 1.02603, Dbamboo = 0.00118 × H + 0.98684, MCpoplar = 0.00309 × H + 1.89982, and MCbamboo = 0.00131 × H + 0.31488, where H is the CT number. The determination coefficients, R2, of the models were all higher than 0.97. Additionally, the R2 values obtained for model validation were also all higher than 0.97. These results indicated that it is feasible to reliably determine D and MC of wood and bamboo using the X-ray CT technique. This study aims to provide reference data for CT detection of the D and MC of wood and bamboo.
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Thi My Chau, LE, NGUYEN Tan Thanh, DINH Thi Phuong An, PHAM Thi Lan Anh, NGO Thi Men, NGUYEN Thi Ha Vy, BUI Minh Tuong Linh et al. "APPLICATION OF NATURAL-BASED ANTI-FUNGAL FORMULATIONS FOR BAMBOO AND WOODEN HOUSEHOLD PRODUCTS". Vinh University Journal of Science 52, n. 4A (20 dicembre 2023): 59–70. http://dx.doi.org/10.56824/vujs.2023a059.
Abstract (sommario):
This paper is concerned with the ability of natural products such as vinegar, tea, okra, lemon juice, grapefruit peel essential oil, and baking soda to prevent mold growth on bamboo and wood materials. The results showed that grapefruit peel essential oil had the highest biological activity compared to the other products in preventing mold growth on wood materials. Additionally, a process for preventing mold growth on bamboo and wood materials was developed and the parameters were optimized using the Box-Behnken surface response correlation method. The optimal process conditions were determined by analyzing the response surface of the three-dimensional surface plot and solving the regression model equation using Design Expert software. The optimal conditions, including the ratio of product to coverage area 5/1, concentration 53%, time in 238 minutes and temperature 40𝑜𝐶, have been tested and showed that the time for mold appearance was 254 days.
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Prasetiyo, Kurnia Wiji, Dede Hermawan, Yusuf Sudo Hadi, Subyakto Subyakto, Muhammad Firdaus, Firda Aulya Syamani e Lilik Astari. "Hybrid Particleboard Made of Corn Husk (Zea Mays L.) and Sembilang Bamboo (Dendrocalamus Giganteus Munro): Effect of Adhesive Type and Particle Composition". Jurnal Bahan Alam Terbarukan 10, n. 2 (30 dicembre 2021): 50–59. http://dx.doi.org/10.15294/jbat.v10i2.31600.
Abstract (sommario):
Particleboard is a panel product made of wood particles or other lignocellulosic materials added with adhesive then pressed. The development of particleboard manufactured using non wood biomass has become important due to the decreased of wood as main raw material for the particleboard industry. Corn husk (Zea mays L.) and Sembilang bamboo (Dendrocalamus giganteus Munro) are lignocellulosic biomass that has potential as renewable materials for hybrid particleboard. The purposes of this study were to determine the suitability, the effect of adhesive type, and particle composition on physical and mechanical properties of hybrid particleboard made of corn husk and Sembilang bamboo particles. The adhesive types used were urea formaldehyde (UF) and phenol formaldehyde (PF) with 10 wt% adhesive content and the composition of corn husk : Sembilang bamboo was set at 100 : 0, 75 : 25, 50 : 50, 25 : 75, 0 : 100 (% w/w). The target density of hybrid particleboard was set at 0.80 g/cm3. The boards were manufactured at 130 °C for UF and 150 °C for PF press temperature, 10 minutes and 2.5 MPa for the pressure of the hot press. The results showed that hybrid particleboard properties improved with increasing the amount of Sembilang bamboo particles in the board. Hybrid particleboard properties affected in ascending order were modulus of rupture (MOR), modulus of elasticity (MOE), internal bond (IB) and screw holding power (SHP). Generally, hybrid particleboard bonded PF adhesive has better properties than bonded UF adhesive. Results indicated that the addition of Sembilang bamboo particles in the mixture resulted in better properties of hybrid particleboard.
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Gafar, Nurhafni A., Abdulrasyid Tolangara e Nurmaya Papuangan. "PEMANFAATAN TUMBUHAN BAMBU DI KELURAHAN COBODOE KOTA TIDORE KEPULAUAN". JURNAL BIOEDUKASI 5, n. 1 (20 giugno 2022): 44. http://dx.doi.org/10.33387/bioedu.v5i1.4401.
Abstract (sommario):
Bamboo is a versatile plant and occupies a special place in the life of indonesian people. Bamboo is also a fairly available and inexpensive raw material for making household appliances and furniture, building materials, pipes for water distribution, musical instruments and religious purposes. In addition, some types of bamboo are ornamental plants and waste filter processors and erosion prevention. Bamboo belongs to the results of non-timber forests and can be used as an alternative to wood. This research aims to find out the diversity of bamboo plants and the form of utilization of bamboo plants in Cobodoe Village, East Tidore Subdistrict. This research is a descriptive study, with survey methods used to describe the diversity and form of utilization of bamboo plants in Cobodoe Village, East Tidore District. The results of this study showed that the diversity of bamboo types in Cobodoe Village was categorized as low with an H' value of 1.03. There are three types of bamboo, namely Spotted bamboo (Bambusa maculate), Bamboo Tui (Melocanna hamilis Rpr.), and Bamboo Fence (Bambusa glaucescens). People in Cobodoe Village use bamboo plants as raw materials for food and household furniture.
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Hu, J. B., e A. Pizzi. "Wood–bamboo–wood laminated composite lumber jointed by linear vibration–friction welding". European Journal of Wood and Wood Products 71, n. 5 (26 giugno 2013): 683–86. http://dx.doi.org/10.1007/s00107-013-0714-3.
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J.V.N.S. PRASAD, B. GANGAIAH, S. KUNDU, G.R. KORW R, B. VENKATESWARLU e V . SINGH. "Potential of short rotation woody crops for pulp fiber production from arable lands in India J.V.N.S. PRASAD , 6. GANGAIAH2, S. KUNDU1, G.R. KORWAR', B. VENKATESWARLU1 AND V.P. SINGH3". Indian Journal of Agronomy 54, n. 4 (10 ottobre 2001): 380–94. http://dx.doi.org/10.59797/ija.v54i4.4812.
Abstract (sommario):
Wood fiber is used for the manufacture of various kinds of paper, packaging material, tissues, paperboard etc. The conventional soft woods and hard woods used as raw materials by pulp, paper and cellulose based indus- tries are depleting day by day and the wood imports are draining country's foreign exchange. Short rotation in- dustrial agroforestry plantations with the fast growing tree species are potential sources to fill this gap and to make the nation self reliant in pulpwood supply. Poplar, eucalyptus, leucaena and bamboo are the ideal spe- cies that can be grown commercially in private lands for meeting the wood requirements and has the potential to produce a biomass of 18 to 49 tl ha per year. The pulp yield from these species ranges from 40 to 49% of the wood biomass produced. With the expansion of wood markets, high biomass yields and amenability for har- vesting in short rotations, short rotation woody crops can be one of the profitable options for fiber production on lands which are not suitable for intensive arable cropping. Some of the important fiber supplying species which are grown under Indian conditions and their agroforestry systems and profitability aspects are discussed in the paper.
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Vo, Tuyen, Thanh Nam Nguyen, Khanh Dien Le e Svetlin Antonov. "Study on the Effects of Technology Parameters on the Bending Strength of Press Bamboo Powder Plywood". Key Engineering Materials 863 (settembre 2020): 19–24. http://dx.doi.org/10.4028/www.scientific.net/kem.863.19.
Abstract (sommario):
The application of bamboo by-products such as bamboo branches, debris... to recycle and produce bamboo powder plywood, perfectly saves high price natural resource of national wood with artificial wooden boards made from bamboo powder that ensures the reservation of natural source of raw materials and protecting of environment. Plywood that is made from bamboo powder has both economic and environmental benefits. It is an urgent task for providing a new version of material for civil engineering in Vietnam. The paper presents a study of the effect of technological parameters on the bending strength of pressed bamboo pulp plywood in order to enhance the mechanical properties of a new domestic product of construction in Vietnam.
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Yuan, Tiancheng, Jie Liu, Shouheng Hu, Xinzhou Wang, Xianmiao Liu e Yanjun Li. "Multi-scale characterization of the effect of saturated steam on the macroscale properties and surface changes of moso bamboo". Materials Express 11, n. 5 (1 maggio 2021): 740–48. http://dx.doi.org/10.1166/mex.2021.1954.
Abstract (sommario):
Bamboo is a woody material that has become a key substitute for wood resources in many fields. This study is aimed to analyze the effects of saturated steam (140, 160, 180 °C) on physical, crystallinity, chemical composition, mechanical properties as well as microstructures at different periods (4, 6, 8, 10 min). Expectedly, a reduction of hemicellulose and cellulose and increment of relative content of lignin in bamboo when temperature above 160 °C was positive to reduce the equilibrium moisture content (EMC). Thus, the hygroscopicity improved and the parenchyma cells and vascular bundles were shrunk slightly. Both temperature and time positively affected the crystallinity of bamboo samples in comparison with the control. Heat treatment parameters affect the mechanical properties of bamboo. When the treatment was carried out at 140 °C, the modulus of rupture (MOR) and modulus of elastic (MOE) increased in comparison to no treatment; Furthermore, The MOR and MOE decreased by 40% and 19% compared with that of the untreated bamboo at 180 °C for 10 min. The temperature and time had a great influence on a*, b*, and L* of the bamboo. The results showed that during the heat treatment, the bamboo color changed from light yellow to dark red-brown, and the overall color changed evenly. Among them, a* increased firstly and then decreased, indicating that the treated bamboo was reddish, while b* and L* mainly showed a downward trend. The ΔE value positively corresponded to heat treatment severity.
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RUNGE, TROY, CARL HOUTMAN, ALBERTO NEGRI e JACKIE HEINRICHER. "Timber bamboo pulp". TAPPI Journal 12, n. 2 (1 marzo 2013): 9–15. http://dx.doi.org/10.32964/tj12.2.9.
Abstract (sommario):
Fast-growing biomass, such as bamboo, has the potential to serve an important future role in the pulp and paper industry with potential to both lower resource costs and improve a product’s sustainability. Moso bamboo is particularly interesting due to its fast growth and size, which allows it to be handled and chipped similarly to wood resources. In this study, we will share results of the chip preparation, kraft cooking, and ECF bleaching of this bamboo species and compare its pulpability, bleachability, and physical properties to a fast growing hybrid poplar tree. Results indicate that the bamboo chips cooked and bleached similarly to the poplar hardwood, allowing for co-cooking. The resulting pulps had superior tensile properties at low refining, but did have higher fines that lowered drainability as measured by Canadian Standard Freeness. The bamboo fiber morphology was also measured, indicating the fiber to have length weighted average fiber lengths and coarseness values to be greater than the poplar wood studied, which should allow this material to be used in many paper grades.