PLA has many applications and can be used in extrusion, injection molding, film drawing, spinning, and other fields.
Disposable products
Polylactic acid is absolutely harmless to the human body, which makes polylactic acid have unique advantages in the field of disposable tableware, food packaging materials and other disposable products. Its complete biodegradation also meets the high environmental protection requirements of countries around the world, especially the European Union, the United States and Japan. However, the disposable tableware processed with polylactic acid raw materials has defects such as temperature resistance and oil resistance. In this way, its function is greatly reduced, and the tableware is deformed and the material becomes brittle during transportation, resulting in a large number of defective products. However, after technological development, there are already PLA-modified materials in the market, which can effectively overcome the shortcomings of the original pellets, and some even have a heat-resistant temperature of over 120°C, which can be used as materials for microwave ovens.
Biomedical field
The biopharmaceutical industry is the earliest application field of polylactic acid. Polylactic acid is highly safe for the human body and can be absorbed by tissues. In addition to its excellent physical and mechanical properties, it can also be used in the field of biomedicine, such as disposable infusion tools, non-removable surgical sutures, drug-relieving packaging agents, artificial fractures Internal fixation materials, tissue repair materials, artificial skin, etc. High molecular weight polylactic acid has very high mechanical properties. It has been used to replace stainless steel in Europe and the United States and other countries. It is widely used as a new type of orthopaedic internal fixation material such as bone nails and bone plates. The patient was spared the pain of a second operation. It has high technical added value and is a promising polymer material for the medical industry.