| Issue |
E3S Web Conf.
Volume 623, 2025
IV International Conference on Ensuring Sustainable Development: Ecology, Earth Science, Energy and Agriculture (AEES2024)
|
|
|---|---|---|
| Article Number | 01021 | |
| Number of page(s) | 10 | |
| Section | Ecology, Biodiversity and Ways of its Conservation | |
| DOI | https://doi.org/10.1051/e3sconf/202562301021 | |
| Published online | 08 April 2025 | |
Obtaining environmentally compliant wood-polymer composite material from larch wood
1 Voronezh State University of Forestry and Technologies named after G.F. Morozov, 8, Timiryazeva str., Voronezh, 394087, Russian Federation
2 Derzhavin Tambov State University, 33, st. Internationalnaya, Tambov, 392000, Russian Federation
* Corresponding author: arussu@mail.ru
The article discusses the issues of environmentally compatible strengthening components of wood-polymer composite materials: a binder and a wood matrix (Larix Sibirica). Nanocrystalline cellulose was activated by ultrasound and a pulsed magnetic field. Then it was introduced into synthetic polymer liquid phenol-formaldehyde resin. It increased the resin strength by 2 times. Similar results were obtained with Prefier phenol-formaldehyde resin, urea formaldehyde resin with increased pot life, and amino-formaldehyde resin. The analysis of larch wood microstructure obtained with a scanning electron microscope was made. It was showed that formation of cracks along the medullary rays due to rupture of the cells, as well as detachment of parenchyma cells from the tracheids was common to all sections. The research defined that impregnation of larch wood with plasticizing aqueous solution, in particular, urea, eliminates microcrack formation along the annual layer during drying. Larch plywood, made using Prefier resin modified by nanocrystalline cellulose, has increased chipping strength along the adhesive layer and static bending strength. Prefier resin was established to be the most environmentally sensitive strengthening components for wood-polymer production.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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