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Wood properties
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Part 1 of ebook "Timber: Structure, properties, conversion and use" provides readers with contents including: nomenclature of timbers; structure of wood; gross structure; cellular structure; molecular structure; variability in structure; identification of timbers; properties of wood - influence of structure; density of wood; moisture in wood; strength, elasticity and toughness of wood;...
137p
mothoiphong
28-06-2024
0
0
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Part 2 of ebook "Timber: Structure, properties, conversion and use" provides readers with contents including: processing of timber - how to cut it up, dry and grade it; log conversion; seasoning of wood; machining of wood and board materials; timber grading and grade stresses; utilisation of timber - how, why and where is it used;...
173p
mothoiphong
28-06-2024
0
0
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This study determined effect of nano TiO2 ratio on some properties of wood plastic composite (WPC), especially ultraviolet (UV) resistance of the material. Research results showed that, the TiO2 nanoparticles did not significantly affect bonding quality between wood flour and plastic, it means when adding nanoparticles into WPC, the strength of material was almost unchanged.
7p
vilarry
01-04-2024
6
1
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In the compressed wood production technology, the heat treatment for dimensional stability of compressed wood plays an important role as it reduces tension in the wood after shape transformed compressing. This study has mentioned the effects of temperature (160.170, 180, 190, 200, 210o C) and duration (0.5, 2.5, 4.5, 6.5, 8.5h) of treatment of Styrax tonkinensis woodin a vacuum condition of 650mmHg.
12p
vilarry
01-04-2024
1
1
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The alkyde paint has high gloss, hardness, and flexibility, good color retention of coating film. It is good for adhesion with wood, metal and others. However, there have been very few researches on alkyde paints in Vietnam recently. This paper is aimed at studying the influence of rate of Beckosol 6501-80 binder and solids powder as titanium oxide R, Lithopone, CaCO3 to quality of surface film of Alkyde paint.
11p
vilarry
01-04-2024
1
1
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Research on the effects of mDMDHEU concentration at 10, 20 and 30% on the finishing abilityby 4 types of paints: brown alkyd, PU, cerise Lasure classic and dark gray Lasure classic paints, and on the adhesive ability of Neolamarckia cadambawood to 2 types of glue: Epoxy and PVA in room conditions and after outdoor weathering in within 12 months.
10p
vilarry
01-04-2024
5
1
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In this study, the factors related to the veneer material and adhesive properties were fixed; however, working conditions and process parameters (impregnation, pre-drying, curing, gluing, hot press) could affect the performance of plywood. Therefore, the objective of this work is to investigate the influence of two different processes (with and without curing before gluing) on bonding quality of the treated beech plywood.
8p
vilarry
01-04-2024
9
1
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With Beech veneers being treated with 10% solid content of the chemicals from paper (Alkyl ketene dimer, AKD), wood (N-methylol melamine, NMM-1) and textile industry (fatty acid modified N-methylol melamine, mNMM-2), the results showed that the treatments with these chemicals considerably increased the water repellence effectiveness (WRE) of veneers in the initial submersion phases. In this paper, veneers treated with Nmethylol melamine and AKD chemicals were investigated on water/moisture related properties and their stability after cyclic tests.
12p
vilarry
01-04-2024
1
1
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Ebook "Agricultural biomass based potential materials" will cover the chemical, physical, thermal, electrical, and biodegradability properties of agricultural biomass based composite materials and its different potential applications. The main goal of this volume is to familiarize researchers, scientists and engineers with the unique research opportunities and potentials of agricultural biomass based materials.
508p
manmanthanhla0201
26-02-2024
6
1
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Part 1 of ebook "Timber bridges: Design, construction, inspection, and maintenance" provides readers with contents including: timber as a bridge material; types of timber bridges; properties of wood and structural wood products; preservation and protection of timber bridges; basic timber design concepts for bridges; loads and forces on timber bridges;...
498p
thamnhuocgiai
24-09-2023
7
4
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S-adenosyl-l-homocysteine hydrolase (SAHH) is the only eukaryotic enzyme capable of S-adenosyl-lhomocysteine (SAH) catabolism for the maintenance of cellular transmethylation potential. Recently, biochemical and genetic studies in herbaceous species have obtained important discoveries in the function of SAHH, and an extensive characterization of SAHH family in even one tree species is essential, but currently lacking.
15p
vinarcissa
21-03-2023
1
1
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Association study is a powerful means for identifying molecular markers, such as single-nucleotide polymorphisms (SNPs) associated with important traits in forest trees. Catalpa fargesii Bur is a valuable commercial tree in China and identifying SNPs that associate with wood property would make a foundation of the markerassisted breeding in the future. However, related work has not been reported yet.
15p
vihagrid
30-01-2023
7
3
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Part 1 of ebook "Wood and wood joints: Building traditions of Europe, Japan and China" presents the following content: foreword by valerio olgiati; the material; the properties of wood; species of wood; working with wood; types and functions of wood joints; classification systems in the literature;...
112p
damtuyetha
09-01-2023
3
2
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Part 1 of ebook "Building materials (Thrid revised edition)" presents the following content: principal properties of building materials; structural clay products; rocks and stones; wood and wood products; materials for making concrete-I cement; materials for making concrete-II aggregates; materials for making concrete-III water; materials for making concrete-IV lime; puzzolanas;...
260p
damtuyetha
09-01-2023
10
2
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Wood fiber-based packaging materials, as renewable materials, have growing market potential due to their sustainability. A new breakthrough in cellulose-based packaging requires some improvement in the mechanical properties of paper. Bleached softwood kraft pulp was mechanically treated, in two stages, using high- and lowconsistency refining, sequentially.
9p
vihermione
06-01-2023
7
2
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Small specimens of spruce wood with different degrees of delignification were studied using in-situ tensile tests and simultaneous synchrotron X-ray diffraction to reveal the effect of delignification and densification on their tensile properties at relative humidities of 70–80 %. In addition to mechanical properties, these analyses yield the ratio of strains in the cellulose crystals and in the bulk, which reflects the stress-transfer to crystalline cellulose.
10p
viginny
30-12-2022
6
2
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Bamboo is one of the important vegetative resources after plantation wood and is a major raw material for the forest product industry. In Vietnam, bamboo has become the main material for industrial manufacturing of round and laminated bamboo furniture and parquet. The bamboo Thyrsostachys siamensis with its Vietnamese name “Tam Vong” is one of the most common species growing mainly as a forest and also largely cultivated in the provinces Binh Thuan, Gia Lai, Kong Tum, Lam Dong and Tay Ninh.
10p
vilamborghini
12-10-2022
6
4
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The physico-chemical properties of biochars were systematically investigated with organic elemental analyser, scanning electron microscopy, N2 adsorption measurement, IR spectroscopy and X-ray photoelectron microscopy.
9p
thebadguys
15-01-2022
7
0
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The sorption isotherms were best described by the Freundlich model rather than Langmuir or linear models. We determined that using wood fibre in constructed wetlands would require around 35–66% less area to remove the selected micropollutants, compared to soil as matrix. Thus our results show the potential of using hydroponic substrata such as wood - and coconut fibre to both remove micropollutants in, and reduce the footprint of constructed wetlands.
10p
thebadguys
15-01-2022
14
0
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Objectives of the study: Determining the growth characteristics and adaptability of some triploid acacia clones in 3 ecological regions (Northeast, North Central and Southeast); đetermine the basic wood properties for some promising triploid acacia clones; identify some reproductive characteristics of some triploid acacia clones
27p
guitaracoustic09
14-01-2022
12
2
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