my country’s polylactic acid production has gradually increased, and its dependence on foreign countries has declined.
polylactic acid, also known as polylactide, is a polyester polymer made from lactic acid as the main raw material through polymerization. it is one of the subcategories of new biodegradable materials. polylactic acid has the characteristics of good thermal stability and excellent solvent resistance, and can be processed in a variety of ways, such as…

