The Study of Wood-Based Composites Based on Biodegradable Polymer

Сафин, Р. Р.; Akhunova, Lilia Vakifovna; Shaikhutdinova, Aigul Ravilevna; Зиатдинов, Р. Р.

doi:10.4028/www.scientific.net/kem.706.78

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For comparison, Chen et al [ 22 ] studied a composite of PVAc and natural rice husk fibers and reported a similar tensile strength of 8.34 MPa for the best formulation (50:50). Safin et al [ 48 ] evaluated composites of PVAc and natural pine wood fibers and found tensile strength of 19 and 12 MPa, for 10% or 50% of fibers, respectively, that is, a decreasing trend with increasing wood content. A decrease in strength of composites with higher filler content is partly justified by the greater interaction among fibers, increasing their effective diameter and reducing the aspect ratio at very high contents.…”

Section: Resultsmentioning

confidence: 99%

“…The PVAc/PFW 5%-20% samples were within 65%-70%, all higher than the sample without PFW (≈52%), an increase of around 36%. For comparison, Laftah and Wan Abdul Rahman [41] reported 1.3% moisture absorption for a composite with 20:80 rice husk:rice bran, with 30 parts of PVAc resin, and Safin et al [48] reported 10% moisture absorption for a composite with PVAc and natural pine wood fibers (50:50). These values are much lower than the 183% absorption reported by Castro [49] for wet blue leather residues, which are similar to the leather residues used in the current work.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Composite for insole shoe assembly based on polyvinyl acetate and polyester fabric waste from the footwear industry

2022

View full text Add to dashboard Cite

This work aimed at studying a composite material for shoe assembly insole using polyester fabric waste (PFW) from the footwear industry. For the preparation of the composites, polyvinyl acetate (PVAc) was employed as the polymeric matrix, with 5%, 10%, 15%, and 20% in weight of PFW in the formulations and compared with a standard formulation without PFW. The samples were characterized via physical–chemical (moisture content, bulk density, and growth/shrinkage) and mechanical (break, tensile and dry, and wet tear) analyses, and also by scanning electron microscopy. The PVAc/PFW 5% and 10% composites showed satisfactory results in all tests performed. They reached 9.99 and 9.09 MPa tensile strength, respectively, twice the minimum acceptable (5 MPa), and 1.13 and 1.07 N/mm dry tear strength, also higher than required (1.0 N/mm). The better results for the samples with less PFW were justified by the lower tendency to produce agglomerates during the molding and compaction production stages. Compared with commercial materials commonly used in shoes, these samples met all specifications and showed the technical feasibility of reusing PFW in assembly insoles.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Composite for insole shoe assembly based on polyvinyl acetate and polyester fabric waste from the footwear industry

2022

View full text Add to dashboard Cite

show abstract

Mathematical Model for Determining the Colorimetric Characteristics of Composite Materials Based on PLA and Wood Filler

Sabirova

Сафин

Galyavetdinov

2021

DDF

View full text Add to dashboard Cite

The environmental concern of many countries seeking to conserve natural resources is driving the development, production and consumption of biodegradable composites. However, in view of their high cost, adding various fillers to composites (such as, wood flour (WF)) is promising. The advantages of using composites with wood fillers are resistance to weathering, environmental friendliness, ease of mechanical processing, and the possibility of waste disposal. To improve the properties and expand the scope of such composites, it is possible to use thermal modification of the filler, which gives wood such properties as: high hardness, water resistance, chemical and biological resistance. Thermal modification consists in heating wood in the temperature range from 150 to 230 °C without oxygen. At the same time, color properties of the material are changed definitely: an increase in the processing temperature affects darkening of wood, which leads to a change in the color characteristics of the last composite. In this regard, a regression mathematical model is proposed for easy color control prediction of the product, which is obtained as a result of composites color analysis based on polylactide (PLA) and the RGB color code. The proposed mathematical model, setting the processing temperature of wood filler, lets predicting the intensities of red, green and blue components for the subsequent visual representation of the last composition color using standard computer programs.

show abstract

Studying the Performance of Composites Based on Thermally Modified and UV-Treated Wood

Хасаншин

Сафин

Mukhametzyanov

2021

SSP

View full text Add to dashboard Cite

To enhance the quality of wood and extend its industrial applications, various methods of wood modification are being developed. It is well known that the thermal treatment of wood may considerably enhance its moisture resistance, reduce its hygroscopicity, and increase its rot proofing. However, reducing the absorptive capacity of wood adversely affects the process of obtaining wood-based composites. Pressure and pressing time increase, which finally increases the cost of the end product. Thus, this study represents the research in how ultraviolet exposure affects the physical properties of wood that has been pre-treated thermally, followed by obtaining a composite. An experimental wood-modifying facility has been developed. We have considered the process of the moisture absorption of the material that has been exposed to thermal modification and UV-radiation. From the experiments conducted, we have found that the UV exposure of wood samples causes an increase in the surface wettability of the thermally modified material. It is found that the most active process of surficial inactivation runs within 60-90 minutes of the UV-exposure of wood. Post-treatment does not result in any considerable changes in the surface wettability. This treatment promotes the increasing adhesion of water-borne binders to the material surface in developing high-strength composites based on modified wood.

show abstract

The Study of Wood-Based Composites Based on Biodegradable Polymer

Cited by 3 publications

References 0 publications

Composite for insole shoe assembly based on polyvinyl acetate and polyester fabric waste from the footwear industry

Composite for insole shoe assembly based on polyvinyl acetate and polyester fabric waste from the footwear industry

Mathematical Model for Determining the Colorimetric Characteristics of Composite Materials Based on PLA and Wood Filler

Studying the Performance of Composites Based on Thermally Modified and UV-Treated Wood

Contact Info

Product

Resources

About