Abstract
In recent years improving the efficiency of wood use is gaining ever-increasing relevance both in Russia and abroad. In issues related to the thermal modification of the properties of wood the increased interest of scientific community can be observed. Heat treatment causes a change in the physical properties and chemical composition of wood raw materials, which subsequently contributes to improvement of the performance characteristics of composite materials and the production efficiency of chemical products from thermally modified shredded wood. The purpose of developing this technology is to improve the performance characteristics of products made of wood-polymer compositions, as well as improved final qualities of the material, namely, the absence of the odor characteristic of thermowood and the formation of cracks on the surface of the material. The effect of the preliminary heat treatment of ground wood in disc-type reactors on water absorption, swelling and tensile strength and compression is established. In the future, the material obtained by this technology can be used in landscape design.
Highlights
At the present time, wood is widely used in various industries ranging from the woodworking and pulp and paper industries to the production of building materials
Heat treatment causes a change in the physical properties and chemical composition of wood raw materials, which subsequently contributes to the improvement of the performance characteristics of composite materials and the production efficiency of chemical products from thermally modified shredded wood
In order to determine the influence of the process of thermal modification of wood filler on the performance properties of wood-polymer composite materials, DPKM prototypes were created and studies of the obtained samples for strength and water absorption were carried out
Summary
Wood is widely used in various industries ranging from the woodworking and pulp and paper industries to the production of building materials. Despite the large number of positive qualities, wood is not without certain disadvantages, which can cause a reduction in the life of the product from a wood-filled composite or complicate the yield of qualitative or quantitative indicators of chemical products obtained In this regard, in the production process of the respective product, the raw wood material undergoes various processing methods and modifications, the most studied of which include such traditional technological operations as mechanical processing, drying, hydrothermal processing, as well as various chemical exposure methods. Heat treatment causes a change in the physical properties and chemical composition of wood raw materials, which subsequently contributes to the improvement of the performance characteristics of composite materials and the production efficiency of chemical products from thermally modified shredded wood
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