▎ 摘　　要

NOVELTY - High-density high-heat conductivity graphene film comprises thickness of 11-100 ??m, tensile strength of 71.9-100.4 MPa, folding times of graphene film is 104 times, density of graphene membrane is 1.5-2.1 g/cm3, heat conducting coefficient of graphene membranes is 500-2100 W/mx K, where the thickness of the graphene membrane has a thickness of 10-100 m, and the tensil strength of the graphite membrane is 71-100 4 MPa. USE - High density, high heat conducting graphene film. ADVANTAGE - The method provides high density, high heat conducting graphene film with controllable thickness. The graphene film has excellent conductive performance, tensile strength, excellent folding resistance test result, and greatly reduces the energy consumption. The method of high heat-conducting graphene film can realize continuous, large-scale production, greatly improving the production efficiency.