▎ 摘　　要

NOVELTY - Preparing a complex film material comprises e.g. (1) preparing graphene by chemical vapor deposition, placing a transition metal matrix in a hydrocarbon gas, heating the gas, cracking, and forming graphene on the surface of the substrate, (2) preparing a graphene suspension, placing the graphene in a dispersion solvent, ultrasonically processing and stirring to obtain a graphene suspension, (3) preparing a graphene film, combining the graphene suspension with a filter membrane by a vacuum filtration method, and quickly filtering through a vacuum pumping device to make a graphene film to be deposited on the filter membrane, and removing the filter membrane to obtain a graphene film, (4) preparing a silver nanowire dispersion liquid, (5) preparing a silver nanowire-graphene film complex structure, and coating the silver nanowire dispersion on the surface of the graphene film, and (6) preparing a liquid photo-curable layer-flexible transparent substrate complex structure. USE - The method is useful for preparing a complex film material. ADVANTAGE - The method: enables large-area batch compounding of silver nanowires and graphene; ensures the integrity of graphene transfer; and reduces the contact resistance between the two. The complex film material has good complex conductive performance. DETAILED DESCRIPTION - Preparing a complex film material comprises (1) preparing graphene by chemical vapor deposition, placing a transition metal matrix in a hydrocarbon gas, heating the gas, cracking, and forming graphene on the surface of the substrate, (2) preparing a graphene suspension, placing the graphene in a dispersion solvent, ultrasonically processing and stirring to obtain a graphene suspension, (3) preparing a graphene film, combining the graphene suspension with a filter membrane by a vacuum filtration method, and quickly filtering through a vacuum pumping device to make a graphene film to be deposited on the filter membrane, and removing the filter membrane to obtain a graphene film, (4) preparing a silver nanowire dispersion liquid, (5) preparing a silver nanowire-graphene film complex structure, and coating the silver nanowire dispersion on the surface of the graphene film, (6) preparing a liquid photo-curable layer-flexible transparent substrate complex structure, and uniformly coating the liquid photo-curable material on the flexible transparent substrate, (7) laminating the silver nanowire-graphene film complex structure with the liquid photo-curable layer-flexible transparent base complex structure, performing heat treatment, and transforming the liquid photo-cured layer into a solid state, (8) electrochemically peeling to obtain a complex conductive flexible film of solid-state photo-curable coating-silver nanowire-graphene film.