▎ 摘　　要

NOVELTY - Nano preservative plastic film comprises 10-20 pts. wt. nano-titanium dioxide, 5-15 pts. wt. nano graphene, 8-12 pts. wt. nano silver powder, 20-50 pts. wt. linear low-density polyethylene, 30-65 pts. wt. polyethylene resin, 6-12 pts. wt. silane coupling agent, 3-8 pts. wt. dioctyl ester, 6-15 pts. wt. ethoxylated alkylamine, 5-10 pts. wt. glyceride and 3-8 pts. wt. ultraviolet absorber. USE - The film is useful for accelerating oxidation vegetables food release of ethylene gas and reducing packing ethylene content in the internal environment. ADVANTAGE - The film has good fresh-keeping effect.