PLA, also known as polylactide, belongs to the polyester family.
PLA is a polymer obtained by polymerizing lactic acid as the main raw material. The production process of
PLA is pollution-free, and the product can be biodegraded to achieve circulation in nature, so it is an ideal green polymer material.
PLA is a new type of biodegradable material. Starch raw materials extracted from renewable plant resources (such as corn) are made into lactic acid through a fermentation process, and then converted into polylactic acid through polymer synthesis.
Advantages of
PLA:
- PLA has excellent biodegradability. It can be completely degraded by microorganisms in the soil within one year after being discarded, generating carbon dioxide and water without causing pollution to the environment. Really "from nature, to nature"! World carbon dioxide emissions According to news reports, the global temperature will rise to 60 ° C in 2030. The treatment method of ordinary plastics is still incineration, which causes a large amount of greenhouse gases to be discharged into the air. PLA is buried in the soil and degraded. Carbon dioxide directly enters the soil organic matter or is absorbed by plants, it will not be discharged into the air, and it will not cause a greenhouse effect.
- PLA is suitable for various processing methods such as blow molding and injection molding. It is easy to process and has a wide range of applications. It can be used to process a variety of food containers, packaged foods, fast food lunch boxes, non-woven fabrics, industrial and civilian fabrics from industrial to civilian. The market outlook is very promising. It can be seen that its mechanical and physical properties are good.
- The basic physical properties of PLA and petrochemical synthetic plastics are similar, that is, it can be widely used to manufacture various applications. PLA also has good gloss and transparency, which is equivalent to the film made of polystyrene, which is not provided by other biodegradable products.
