▎ 摘　　要

NOVELTY - Graphene electric heating film comprises an upper protective layer, a graphene electric heating layer, an insulation layer and a lower protective layer arranged in sequence from top to bottom, where the graphene electric heating layer comprises a base layer and a graphene coating, the graphene coating is located between the base layer and the upper protective layer, a number of grooves are provided on the side of the base layer close to the upper protective layer, and a side of the upper protective layer close to the base layer is provided with a bump matching the groove. USE - As a graphene electric heating film. ADVANTAGE - The film is prepared by simple method, cost-effective and convenient for use. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the film involving adding deionized water to the aqueous fluorocarbon resin, stirring, mixing, adding graphene, calcium dinonylnaphthalenesulfonate and additives, mixing and dispersing, adding binder, and stirring to obtain graphene coating, add aqueous fluorocarbon resin to silicone-acrylic resin, adding expanded vitrified microbeads after stirring and mixing, adding mixed resin, mixing and blow molding into an insulation layer, coating the graphene coating on the surface of the base layer, drying to form a graphene electric heating layer, and sequentially bonding the upper protective layer, the graphene electric heating layer, the thermal insulation layer and the lower protective layer to obtain the finished product.