Views: 440 Author: TH-CS1 Publish Time: 2018-07-17 Origin: Site
Polylactic acid (PLA) is a new kind of biological base and renewable biodegradable material, which is made from starch raw materials proposed by renewable plant resources (such as corn, cassava, etc.). The raw material of starch is made of glucose through saccharification, which is then fermented by glucose and certain bacteria to produce high purity lactic acid, which is then synthesized by chemical synthesis method. It has good biodegradability and can be completely degraded by microorganisms in nature under certain conditions after use, and finally produces carbon dioxide and water without polluting the environment.
Polylactic acid, also known as polylactide, belongs to the polyester family. Polylactic acid is a kind of polymer made by polymerization with lactic acid as the main raw material. The production process of polylactic acid is pollution-free, and the product can be biodegradable to achieve recycling in nature, so it is an ideal green polymer material.
Thermal stability of poly (lactic acid) (PLA), the processing temperature of 170 ~ 230 ℃, good solvent resistance and processing can be used in a variety of ways, such as extrusion, spinning, biaxial stretching, injection blow molding. Made from polylactic acid products in addition to the biodegradable, biocompatibility, gloss, transparency, and feel good heat resistance, but also has certain bacteria resistance, flame retardant and ultraviolet resistance, so it is quite widely USES, can be used as packaging materials, such as fiber and nonwoven fabric, now it is mainly used for clothing, underwear, clothing), industry (construction, agriculture, forestry, paper) and health care and other fields.
