Poly(DL-lactide) is a kind of biodegradable materials and with good bioabsorbiblity and biocompatibility.Poly(DL-lactide) is currently widely used in the field of medicine, such as the one-time infusion equipment, medical surgical suture, drug delivery carriers, tissue engineering scaffolds, bone anchors, injectable microcapsules, microspheres, implants, elastomer materials for organ support, etc