▎ 摘　　要

NOVELTY - Preparing graphene composite heat conduction gasket, involves dipping the foam template in the graphene oxide slurry, transversely compressing the foam template soaked with the graphene oxide slurry, drying, carbonizing and graphitizing the foam template under the transverse compression condition to obtain longitudinally-arranged graphene heat conducting fins. The high molecular polymer is immersed into the longitudinally arranged graphene heat conducting fins, and cured and formed to obtain the graphene composite heat conducting gasket. USE - Method for preparing graphene composite heat conduction gasket used in mold for transversely compressing a foam template (all claimed), used in smart phones and tablet computers in a large scale. ADVANTAGE - The gasket has high heat-conducting performance in the longitudinal direction, improves the mechanical strength of the longitudinally arranged graphite compressibility and compression rebound elasticity, and avoids the longitudinal arrangement graphene the heat conducting sheet cracking phenomenon under the limit compression condition. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: A mold used for transversely compressing a foam template, comprises a shell and an insert plate, where the shell is provided with a hollow cavity, the cavity is used for inserting the foam template, and the insert plate is inserted into the cavity to extrude the foam template, so as to realize transverse compression of the foam template. The outer shell and the insert plate are in clearance fit, preferably, the thickness of the insert plate is not less than the thickness of the foam template, preferably, one surface of the shell is provided with multiple through holes, further preferably, the size of the through holes is 0.1-2 mm, and further preferably 0.2-0.5 mm, preferably, the material of the mold is graphite, metal tungsten, silicon carbide, and more preferably graphite. A graphene composite heat conduction gasket, which comprises a graphene heat conduction sheet and a high molecular polymer impregnated into the graphene heat conduction sheet, where the graphene in the graphene heat conduction sheet is arranged along a longitudinal direction.