The representative of polylactic acid biodegradable materials
Polylactic acid (PLA) is firstly applied in biomedical industry, because of its safety for human bodies and can be absorbed by tissues, as well as excellent physical and mechanical properties. For example, disposable infusion tools, non-invasive surgical sutures, drug relief packages, artificial internal fracture fixation, tissue repairing materials, artificial skins and son on. PLA with high molecular weight has strong mechanical property, which makes it an substitute for stainless steel widely used for novel orthopedic internal fixation medical equipment, such as bone nails and plates that can be absorbed by human bodies through metabolism, preventing patients from a second times of surgery. It is a promising high polymer material with highly added value in technology in biomedical industry.