Polylactic acid (PLA) is not plastic.
It comes from nature. Starch is extracted from plants such as corn and cassava, and lactic acid is obtained through microbial fermentation and extraction, and then refined, dehydrated, oligomerized, and pyrolyzed and polymerized. Lactic acid is produced through advanced polymerization technology to produce a 100% green and safe new polymer material called polylactic acid (PLA). This product is healthy and safe, non-toxic and odorless, and harmless to the human body. In addition, if the product is discarded under composting conditions, it can be completely decomposed by microorganisms, eventually producing carbon dioxide and water, and returning to nature. The environment will not cause any pollution, so polylactic acid is considered to be a "green material" for low-carbon environmental protection and sustainable development in the 21st century.
PLA has excellent biodegradability. It can be completely degraded by microorganisms in the soil within one year after being discarded, generating CO2 and water, without polluting the environment. PLA itself is an aliphatic polyester with the basic properties of a general polymer material, good mechanical processing performance, low shrinkage, and can be used for most synthetic plastics. It is widely used in the production of packaging materials, disposable tableware, home appliance housings, fibers, 3D consumables, etc.
Polylactic acid (H-[OCHCH3CO]n-OH) has good thermal stability, a processing temperature of 170-230°C, good solvent resistance, and can be processed in a variety of ways, such as extrusion, spinning, biaxial stretching, and injection blow molding. In addition to being biodegradable, products made of polylactic acid have good biocompatibility, gloss, transparency, hand feel, and heat resistance. The polylactic acid (PLA) developed by Guanghua Weiye also has certain antibacterial, flame retardant, and UV resistance, so it has a wide range of uses and can be used as packaging materials, fibers, and nonwovens, etc. It is mainly used in clothing (underwear, outerwear), industry (construction, agriculture, forestry, papermaking), and medical and health fields.
