PBAT resin is a kind of polyester synthesized by esterification and condensation polymerization with BDO, AA and PTA as monomer raw materials under the action of catalyst. PBAT is a thermoplastics biodegradable plastics, which has the characteristics of PBA and PBT. It has good ductility and elongation at break, as well as good heat resistance and impact resistance. In addition, PBAT has excellent biodegradability, and it is one of the most popular degradable materials in the research of biodegradable plastics.