The advantages of the PLA material

2021-11-12

1. Polylactic acid (PLA) is a new biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Glucose is obtained from starch raw material through saccharification, and then high-purity lactic acid is produced by fermentation of glucose and certain bacteria, and then polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability, can be completely degraded by microorganisms in nature after use, and finally produce carbon dioxide and water without polluting the environment, which is very beneficial to environmental protection. It is recognized as an environment-friendly material. The treatment method of ordinary plastics is still incineration and cremation, resulting in a large number of greenhouse gases discharged into the air, while polylactic acid plastics are buried in the soil for degradation, and the generated carbon dioxide directly enters the soil organic matter or is absorbed by plants, which will not be discharged into the air and will not cause greenhouse effect.

2. Good mechanical and physical properties. Polylactic acid is suitable for blow molding, thermoplastics and other processing methods, which is convenient and widely used. It can be used to process all kinds of plastic products, packaged food, fast food lunch boxes, non-woven fabrics, industrial and civil fabrics from industry to civil use. Then it is processed into agricultural fabrics, health care fabrics, rags, sanitary products, outdoor anti ultraviolet fabrics, tent fabrics, floor mats, etc. the market prospect is very promising.

3. Good compatibility and degradability. Polylactic acid is also widely used in the pharmaceutical field, such as the production of disposable infusion tools, detachable surgical suture, low molecular polylactic acid as drug sustained-release packaging agent, etc.

4. In addition to the basic characteristics of biodegradable plastics, polylactic acid (PLA) also has its own unique characteristics. Traditional biodegradable plastics are not as strong, transparent and resistant to climate change as ordinary plastics.