Polylactic acid (PLA) is a new kind of biodegradable material. The starch extracted from renewable plant resources (such as corn) is made into lactic acid through fermentation process, and then converted into polylactic acid through polymer synthesis. Polylactic acid, also known as polylactide, belongs to the polyester family. Polylactic acid (PLA) is a kind of polymer derived from lactic acid polymerization. The production process of polylactic acid is pollution-free, and the product can be biodegradable, and realize the circulation in nature, so it is an ideal green polymer material. Polylactic acid (PLA) is a new kind of biodegradable material. The starch extracted from renewable plant resources (such as corn) is made into lactic acid through fermentation process, and then converted into polylactic acid through polymer synthesis

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