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Samples of biodegradable composite material obtained by mixing a biodegradable polymer (PLA) as a matrix and chopped fine wood as a filler were developed. The filler in the samples was preliminary thermally modified at various temperatures. Composites were studied for biodegradation in alkaline solutions of NaOH and KOH. It was found that the biodegradability of pure PLA was significantly lower than that of composites based on PLA and a wood filler. In addition, the experiments revealed that by adjusting the degre...

Chaga is a perennial parasitic fungus of the Hymenochaetaceae family that lives on the bark of aged birch trees. Chaga contains a comprehensive set of substances that are essential for humans. In this context, the Chaga mushroom is widely used in the pharmaceutical industry. Chaga containing drugs are generally used as anti-inflammatory and restorative. Chaga can also be used as part of the complex treatment of tumors of various localization, diseases of the gastrointestinal tract, it helps to mobilize the body's ...

It is known that laminated wood structures are widely used in construction industry due to the advantages of the resulting monolithic composition. However, despite the large number of positive qualities, wood as a filler has certain disadvantages that can reduce the service life of products made of a wood composite material. Thus, wood filler in the process of hardening and drying of composite material, as well as during operation of structures made of this material, can alternately shrink and swell depending on a...