▎ 摘　　要

NOVELTY - Composite material coated with graphene coating on surface of expanded polytetrafluoroethylene film comprises polytetrafluoroethylene (PTFE) film layer and graphene coating layer, where graphene coating layer is compounded with expanded polytetrafluoroethylene film surface to obtain composite material. USE - Composite material coated with graphene coating on surface of expanded polytetrafluoroethylene film. ADVANTAGE - The composite material coated with graphene coating on surface of expanded polytetrafluoroethylene film has good elasticity and good toughness, high conductivity and excellent performance, high conductivity, good strength, super-light characteristics, such as conductivity, with function of anti-electromagnetic interference, electromagnetic shielding, and has excellent heat conduction and radiation. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing composite material coated with graphene coating on surface of expanded polytetrafluoroethylene film, which involves preparing graphene coating liquid for graphene coating; unwinding the expanded polytetrafluoroethylene membrane and rolling prepared graphene coating solution on the membrane surface; drying, winding, coating curing to obtain final product; and (2) device for preparing a graphene-coated composite material coated on a surface of an expanded polytetrafluoroethylene membrane, which comprises unwinding roll, coater, drying machine, take-up roll and coating curing unit, unwinding roll expanded polytetrafluoroethylene film unwinding to the coating machine, coating machine coated on the polytetrafluoroethylene graphene coating solution, dryer, drying coating liquid, winding by using roller winding, and coating, and curing by using curing device.