Preparation and performance study of hydrotalcites /PLA composites

3D printing technology is known as the core of “the third industrial revolution”. Poly (lactic acid) (PLA) a new type biodegradable thermoplastic resin, which renewable. It has wide range raw materials. also properties high strength, good biocompatibility, excellent mechanical properties, and transparency. Hydrotalcite (HT) was synthesized by coprecipitation method modified to prepare HT/PLA composites. The results show that structure HT good. After KH550 surface modification, large number OH Si-O groups are introduced into PLA surface. TG sample thermal stability. Compared with pure PLA, glass transition temperature crystallization / composites decreases, while melting increases.