▎ 摘　　要

NOVELTY - A copolyester composite material is prepared using poly(butylene adipate/terephthalate) (PBAT) and 0-50 %mass (30-80 mol%) polybutylene terephthalate as nucleating agent. The poly(butylene adipate/terephthalate) is obtained by polycondensation of adipic acid, terephthalic acid and butanediol. USE - Copolyester composite material. ADVANTAGE - The copolyester composite material uses high molecular polyester as nucleating agent which can be well dispersed in the polyester matrix and effectively improve the crystallization temperature of the polyester, improve the crystallization rate, and improve the mechanical property and thermal property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the composite material, which involves mixing PBAT and nucleating agent, drying and injection molding.