▎ 摘　　要

NOVELTY - Fully-degradable film material, comprises 50-70 pts. wt. polylactic acid, 30-50 pts. wt. natural starch, 8-20 pts. wt. poly(butylene adipate-co-terephthalate) (PBAT), 2-6 pts. wt. functional stabilizer, 6-15 pts. wt. plasticizer, 1-5 pts. wt. compatibilizer, anti-hydrolytic agent, and 0.5-2 pts. wt. anti-hydrolysis agent. USE - The film material is useful for preparing packaging film, mulching film, preservative film, and pasting film. ADVANTAGE - The film material has good film-forming property, has excellent flexibility, utilizes green and environmentally friendly raw materials, has good heat insulation, moisture-proof, antibacterial and waterproof properties, and has good application prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a fully degradable film material, comprising melting and mixing PLA, natural starch, poly(butylene adipate-co-terephthalate) and functional stabilizer at 180-200 degrees C, and the blending time is 10-20 minutes, and then adding other additives, mixing at 170-180 degrees C for 5-10 minutes, then extruding and granulating to obtain the material.