Efficient preparation and properties of wood fiber transparent materials with powdered wood

Gao, Jingshu; Wang, Xuan; Xu, Qian; Kuai, Bingbin; Wang, ZiHao; Cai, Liping; Ge, Shengbo; Zhang, Yao Li; Gan, Li

doi:10.1016/j.indcrop.2023.116291

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…The reinforcement effect of birch fibers is determined by the presence of the hydroxyl groups from cellulose and lignin on their surface [45]. As shown in the SEM images (Figure 9), the wood fibers are wetted well by the PU matrix and are incorporated into their structure.…”

Section: Resultsmentioning

confidence: 99%

High-Performance Castor Oil-Based Polyurethane Composites Reinforced by Birch Wood Fibers

2023

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A new method for the preparation of coatings based on renewable biomaterials such as castor oil and birch flour is suggested in this study. The introduction of birch flour in a polyurethane matrix synthesized from castor oil and oligomeric methylene diphenyl diisocyanate (MDI) leads to a more than doubled value of tensile strength and almost doubled strength of adhesion to steel at 20 wt.% loading. The composite with such level loading has tensile strength equal to 7.1 MPa at an elongation at break of 31%, with an adhesion to steel of 3.71 MPa. Hence, the use of such level loading allows for an increase in tensile strength of 887.5% in comparison with that of polyurethane based on neat (as received) castor oil, leading to a decrease in the value of elongation at break. The adhesion to steel of these composites increases by 185.5% in comparison with starting polyurethane. FTIR and SEM studies identified the mechanism of the reinforcement effect of birch fibers. This reinforcement is based on the good wetting of birch fibers by polyurethane with the formation of chemical bonds between them, and the cellulose and lignin components of wood fillers. As a result, we obtained cheap bio-based coatings with acceptable mechanical and adhesion properties.

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Section: Resultsmentioning

confidence: 99%

High-Performance Castor Oil-Based Polyurethane Composites Reinforced by Birch Wood Fibers

2023

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“…Various traditional thermoplastics such as polythene, polypropylene, acrylonitrilebutadiene-styrene copolymers, polyamide, polystyrene, poly(methyl methacrylate), poly(vinyl acetate), and polycarbonate were used as matrixes of polymer-wood composites [3][4][5][6][7][8][9][10]. These materials were also manufactured using thermosetting plastics like epoxy, polyurethane, and phenolic resin [11][12][13][14][15][16]. Fibre, wood chips, sawdust, and wood flour were used as fillers [3,4,8,9,11].…”

Section: Introductionmentioning

confidence: 99%

“…These materials were also manufactured using thermosetting plastics like epoxy, polyurethane, and phenolic resin [11][12][13][14][15][16]. Fibre, wood chips, sawdust, and wood flour were used as fillers [3,4,8,9,11]. The wood material came from both deciduous and coniferous trees [6,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…The wood material came from both deciduous and coniferous trees [6,[15][16][17]. Fillers were used in their original form and after preliminary modification, which may include the removal of lignin, coating with magnetic particles, attachment of epoxy and methacrylate groups, and even modifications using ionising radiation [4,5,7,11,13,14]. The main characteristics of the composites, regardless of the matrix The plastisol consisted of 900 g of powdered PVC polymer, 1080 g of ADO plasticiser, and 18 g of MARK-17 MOK stabiliser.…”

Section: Introductionmentioning

confidence: 99%

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Composite of Poly(Vinyl Chloride) Plastisol and Wood Flour as a Potential Coating Material

Siekierka,

Makarewicz,

Wilczewski

et al. 2023

Coatings

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This paper presents the results of a study of the properties of a new composite material made from poly(vinyl chloride) plastisol (PVC) and conifer-derived wood flour. The material can be used for thermal insulation, floor coverings with high resistance to mechanical trauma, and protective coatings. The plastisol was made from emulsion poly(vinyl chloride), the plasticiser was bis(2-ethylhexyl) adipate, and the stabiliser was octyltin mercapeptide. Two types of flour were used: fine-grained and coarse-grained. Its properties, such as bulk density, oil number, and plasticiser number, were determined. The polymer-wood composite contained 20 or 30 wt.% wood flour in PVC. Plastisol was obtained by repeated mixing, mashing, and venting under vacuum. The produced composite material was gelated at temperatures of 130, 150, and 170 °C. The gelation process of the composites was studied in a Brabender apparatus. Samples in the form of polymer films were used to study density, hardness, thermal stability, and mechanical and thermomechanical properties. The structure of the composites was observed by scanning electron microscopy (SEM). A summary of all test results showed that composite films made from PVC plastisol with 20 wt.% of fine wood flour gelled at 150 °C had the most favourable physical, mechanical, and thermal properties.

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Cellulose-derived raw materials towards advanced functional transparent papers

Guan,

Yan,

Liu

et al. 2024

Carbohydrate Polymers

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Efficient preparation and properties of wood fiber transparent materials with powdered wood

Cited by 9 publications

References 16 publications

High-Performance Castor Oil-Based Polyurethane Composites Reinforced by Birch Wood Fibers

High-Performance Castor Oil-Based Polyurethane Composites Reinforced by Birch Wood Fibers

Composite of Poly(Vinyl Chloride) Plastisol and Wood Flour as a Potential Coating Material

Cellulose-derived raw materials towards advanced functional transparent papers

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