Eco-Friendly Biodegradable PLA Super Short Cut Staple Fiber
Polylactic acid fiber is a fully biodegradable synthetic fiber that can be obtained from grains. Its products can be decomposed into carbon dioxide and water by microbial action in soil or sea water after waste, and will not emit toxic gas and cause pollution when burned. It is a kind of sustainable ecological fiber. The raw material for the production of polylactic acid fiber (PLA) is lactic acid, which is prepared from corn starch, so this fiber is also called corn fiber, and can be made from sugar beets or grains by glucose fermentation to reduce the cost of preparing lactic acid polymerization. Polylactic acid with high molecular weight can be obtained by chemical polymerization of lactic acid cyclodimer or direct polymerization of lactic acid. The products obtained from polylactic acid have good biocompatibility and bioabsorbability, as well as antibacterial and flame retardant properties, and PLA has the best heat resistance among degradable thermoplastic polymer materials. PLA fiber has similar physical properties to PET fiber (i.e. polyester fiber), not only has high crystallinity, but also has the same transparency; And because of its high crystallinity and high orientation, it has high heat resistance and high strength, and no special equipment and operation process is required, the application of conventional processing technology can be spun.
