▎ 摘　　要

NOVELTY - Biodegradable film comprises 8-15 pts. wt. cellulose, 10-20 pts. wt. starch, 40-65 pts. wt. polylactic acid, 10-20 pts. wt. softening and toughening agent, 3-10 pts. wt. antioxidant, 3-10 pts. wt. antibacterial agent and 1-4 pts. wt. graphene. USE - The biodegradable film is useful for packaging sanitary product. ADVANTAGE - The film has increased strength, improved product stability, antibacterial property, barrier property and film formation quality and its each performance index meets national standards, automatically degrades under natural conditions, which can reduce the amount of non-degradable waste plastic, and is safe and non-toxic.