▎ 摘　　要

NOVELTY - The method involves adding an oxidized graphene into the water and stirring to obtain an oxidized graphene compound. The copper sulphate solution is added to the oxidized graphene slurry to obtain the oxidized graphene/copper sulphate composite slurry. The oxidized graphene/copper sulphate composite slurry is coated on a substrate, where the coating thickness is greater than or equal to 1mm. The substrate is sequentially into a tunnel chamber filled with hydrogen iodide steam and a tunnel furnace to obtain a fluffy graphene composite nano copper film. The fluffy graphene composite nano-copper film is respectively put in a carbide furnace and a graphitizing furnace to obtain a heat-treated fluffy graphene composite nano-copper film. The fluffy graphene composite nano-copper film is placed in a vacuum high temperature hot pressing sintering furnace of 1400-1800 ℃, at the pressure of 10-100 tons, for vacuumizing and pressing time about 10-30 min. USE - Method for preparing a graphene composite copper conductive film (claimed) for use in an electric heating film. ADVANTAGE - The method enables preparing the graphene composite copper conductive film with good conductivity and ductility, and improved tear strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene composite copper conductive film. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating a method for preparing a graphene composite copper conductive film (Drawing includes non-English language text).