▎ 摘　　要

NOVELTY - Aluminum foil coated sheet comprises galvanized passivation substrate. The coating and the graphene-water-based silicone-modified acrylic resin coating are sequentially laminated on the front and back sides of the galvanized passivation substrate. The polyurethane layer of the oxidized graphene-water-based silicone-modified acrylic resin is laminated on the front side. The polyurethane adhesive layer, the coating layer and the protective coating are laminated. The coating is a chromate chemical pretreatment liquid. The coating layer is an aluminum foil brushed PET composite film. USE - Aluminum foil coated sheet for household electrical products (claimed). ADVANTAGE - The aluminum foil coated sheet has excellent coating insulation property, heat dissipation property, antistatic property and drawing texture appearance with excellent physical and mechanical properties and good protection. DETAILED DESCRIPTION - Aluminum foil coated sheet comprises galvanized passivation substrate. The coating and the graphene-water-based silicone-modified acrylic resin coating are sequentially laminated on the front and back sides of the galvanized passivation substrate. The polyurethane layer of the oxidized graphene-water-based silicone-modified acrylic resin is laminated on the front side. The polyurethane adhesive layer, the coating layer and the protective coating are laminated. The coating is a chromate chemical pretreatment liquid. The coating layer is an aluminum foil brushed PET composite film. The front side of the aluminum foil has drawn textured pattern on which the PET film is pressed. The aluminum foil backside is affixed to oxidized graphene-waterborne silicone modified acrylic resin coated by polyurethane hot melt adhesive. The graphene-water-based silicone-modified acrylic resin coating comprises 65 to 77 wt.% water-based silicone-modified acrylic resin, 19.5 to 32.5 wt.% silane coupling agent and 0.1 to 4 wt.% graphene oxide. The silane coupling agent and deionized water are diluted to obtain silane coupling agent dispersant. The dispersant is added to the water-based silicone-modified acrylic resin to uniformly mix to form a mixed solution. The aqueous dispersion of graphene oxide is added to mixed solution to obtain an oxidized graphene-water-based silicone-modified acrylic resin coating. The graphene oxide is prepared by an improved Hummers method. The protective coating comprises 20-32 wt.% hexafunctional aliphatic urethane acrylate, 55-67 wt.% isopropanol, 6-8 wt.% pentaerythritol tetraacrylatefluorine, 3-15 wt.% organic surfactants, 0.2-0.5 wt.% leveling agent and 2-9 wt.% benzophenone. The hexafunctional aliphatic urethane acrylate, the pentaerythritol tetraacrylate, the fluorine-containing organic surfactant, the leveling agent and the benzophenone are added to the isopropanol, and the mixture is stirred and mixed to obtain protective coating. The aluminum foil coated plate is prepared by passivating galvanized substrate to obtain galvanized passivation substrate. The 20 to 60% chromate chemical pretreatment liquid is applied to each of the galvanized passivation substrates by a roll coating method to obtain a coating layer. The oxidized graphene-water-based silicone-modified acrylic resin coating is coated on the coating and dried at 150 to 210 degrees C to obtain the graphene-water-based silicone modified acrylic resin coating. The urethane-based silicone-modified acrylic resin coating is coated on the front side with polyurethane glue and cured at 220 to 230 degrees C to obtain the polyurethane adhesive layer. A layer is drawn on the front side of the aluminum foil substrate, then layer of 4-5 mu m glue is coated on it, pressed to obtain the aluminum foil brushed PET composite film, and applied at 220 to 230 degrees C to obtain polyurethane adhesive layer. The polyurethane adhesive layer is cooled to room temperature, and protective coating is coated on the aluminum foil drawing PET composite film, dried, UV cured to obtain product.