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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...