PLA Introduction

Polylactic acid (PLA) has a high melting point (175 degrees Celsius), and its physical properties are between PET and PA-6. It has large crystallinity, excellent transparency, good solvent resistance, moisture resistance, grease resistance, and air permeability. It also has a certain degree of bacteria resistance, flame retardancy and UV resistance. In addition, it has excellent biocompatibility, non-toxic, biodegradable, and degradation products will not accumulate in important organs, so it has a wide range of uses. Polylactic acid has advantages over polyethylene, polypropylene, polystyrene and other thermoplastics, and is recognized by the industry as one of the most promising new packaging materials. Moreover, its strength, mechanical properties, degradation rate, etc. can be controlled by molecular weight, and the composition and ratio of the copolymer can be conveniently adjusted. Polylactic acid has good thermal stability and is suitable for various processing methods such as blow molding, suction molding, extrusion spinning, injection molding and foaming. It can be processed into films, packaging bags, packaging boxes, disposable fast food boxes, beverage bottles and medical materials so that it has a wide range of application prospects in the fields of clothing, packaging, toys and medical hygiene.