▎ 摘　　要

NOVELTY - Preparation method of graphene composite thermally conductive gasket involves laser drilling of graphene thermally conductive foam film; ii. impregnating the perforated graphene thermally conductive foam film by the first adhesive; iii. dipped graphene thermally conductive foam films are stacked layer by layer into the mold, and pressure is applied to make the adjacent graphene thermally conductive foam films fit together; iv. coating the second adhesive is evenly around the pressurized graphene thermally conductive foam film, so that the multilayer graphene thermally conductive foamed film is completely wrapped into a block, and the curing temperature of the second adhesive is lower than that of the first adhesive; v. cutting the solidified block into sheets along the lamination direction; vi. hot-pressing above-mentioned sheet; vii. surface polishing of the hot-pressed sheet; viii. edge trimming is performed on the polished sheet. USE - Preparation method of graphene composite heat conducting gasket gasket used for fields of 5G communication, high-power chips and electric automobiles. ADVANTAGE - Graphene composite heat-conducting gasket has low thermal resistance and high resilience. DETAILED DESCRIPTION - Preparation method of graphene composite thermally conductive gasket involves laser drilling of graphene thermally conductive foam film; ii. impregnating the perforated graphene thermally conductive foam film by the first adhesive; iii. dipped graphene thermally conductive foam films are stacked layer by layer into the mold, and pressure is applied to make the adjacent graphene thermally conductive foam films fit together; iv. coating the second adhesive is evenly around the pressurized graphene thermally conductive foam film, so that the multilayer graphene thermally conductive foamed film is completely wrapped into a block, and the curing temperature of the second adhesive is lower than that of the first adhesive; v. cutting the solidified block into sheets along the lamination direction; vi. hot-pressing above-mentioned sheet; vii. surface polishing of the hot-pressed sheet; viii. edge trimming is performed on the polished sheet, and the second adhesive coated on the edge is removed to obtain a graphene composite thermally conductive gasket. An INDEPENDENT CLAIM is included for graphene composite thermally conductive gasket comprises multi-layer graphene thermally conductive foam film and adhesive arranged along the thickness direction, and multi-layer graphene thermally conductive foam film has a plurality of through holes, 10-50 wt.%, preferably 15-35 wt.% graphene thermally conductive foam film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the flow chart of the preparation method of the graphene composite thermally conductive gasket. (Drawing includes non-English language text).