Shanghai Jinwei Polylactic Acid Degradable PLA Production Line

　　Polylactic acid (PLA) is a new type of biobased and renewable biodegradable material made from starch raw materials derived from renewable plant resources such as corn and cassava. Starch raw materials are saccharified to obtain glucose, which is then fermented by a specific strain of bacteria to produce high-purity lactic acid. This is then synthesized through chemical synthesis methods to produce polylactic acid with a fixed molecular weight. It has good biodegradability and can be completely degraded by microorganisms in nature under specific conditions after use, ultimately producing carbon dioxide and water without polluting the environment. This is beneficial for protecting the environment and is recognized as an environmentally friendly material. In Chinese, polylactic acid is also known as polylactide; PLA chemical formula (C3H4O2) nCAS login number 26100-51-6 melting point 155-185 ° C density 1.20-1.30 kg/L application injection molding such as children's tableware, blown film such as shopping bags, spinning such as clothing, diapers, sanitary napkins, etc. PLA is the English abbreviation for polylactic acid, which is also known as polylactide and belongs to the polyester family. Polylactic acid is a polymer obtained by polymerizing lactic acid as the main raw material. The raw material source is abundant and can be regenerated, mainly using corn, cassava, and other raw materials. The production process of polylactic acid is pollution-free, and the product can be biodegraded, achieving circulation in nature, making it an ideal green polymer material. Polylactic acid has good thermal stability, processing temperature of 170-230 ℃, and good solvent resistance. It can be processed in various ways, such as extrusion, spinning, biaxial stretching, and injection blow molding. Products made from polylactic acid are not only biodegradable, but also have good biocompatibility, glossiness, transparency, hand feel, and heat resistance. They also have certain bacterial resistance, flame retardancy, and UV resistance, making them widely used as packaging materials, fibers, and non-woven fabrics. Currently, they are mainly used in clothing (underwear, outerwear), industries (construction, agriculture, forestry, papermaking), and medical and health fields.