▎ 摘　　要

NOVELTY - High barrier heat-sealable degradable film comprises base material layer (10) upper surface has a coating separating layer (20). The coating barrier layer comprises polyvinyl alcohol emulsion, graphene, resin bonding curing agent, coupling agent and solvent. USE - The high barrier heat-sealable degradable film is useful for packaging fields of food, medicine, daily chemicals and medical equipment. ADVANTAGE - The high-barrier heat-sealable degradable film: has strong barrier performance and good heat-sealing performance; and is completely biodegradable. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high barrier heat-sealable degradable film, comprising (i) obtaining a substrate layer; and (ii) disposing a coating barrier layer on an upper surface of the substrate layer. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of a high barrier heat-sealing degradable film. Base material layer (10) Upper surface layer (11) Middle barrier layer (12) Heat-sealing layer (13) Coating barrier (20)