Biodegradable polymer materials have the following characteristics: easy to adsorb water, containing sensitive chemical groups, high degree of molecular chain linearization and large specific surface area, etc. According to the different sources, biodegradable polymer materials are mainly divided into natural polymer materials, microbial synthetic biodegradable polymer materials and synthetic polymer materials. Current biodegradable plastics include polylight alkanic acid cool (PHA), polylactic acid (PLA), polybutinic acid butanediol (PBS), polyhexanqueamine (PCL) and starch and modified starch.
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