What types of biodegradable plastics are there?

Special Committee on Degradable Plastics: According to the source of raw materials of biodegradable plastics, it can be divided into two categories: bio-based biodegradable plastics and petrochemical-based biodegradable plastics.

Bio-based biodegradable plastics can be mainly divided into four categories: the first category is plastics directly processed from natural materials. At present, biodegradable plastics produced from natural polymers on the market mainly include thermoplastic starch, biocellulose and polysaccharides. and polyamino acids and their blended modified and chemically modified products; the second category is polymers obtained by microbial fermentation and chemical synthesis, such as polylactic acid (PLA), etc.; the third category is polymers directly synthesized by microorganisms such as polyhydroxyalkanoate (PHA), etc.; the fourth category is biodegradable plastics obtained by blending and processing these materials or these materials and other chemically synthesized biodegradable plastics.