▎ 摘　　要

NOVELTY - Preparing a carbon nanotube/graphene flexible film comprises dispersing carbon nanotubes in an aqueous solution of a surfactant to obtain a carbon nanotube dispersion, and dispersing in an aqueous solution of a surfactant to obtain a graphene dispersion. The graphene dispersion is mixed with the polymer resin emulsion to obtain a graphene mixed solution, and an aqueous solution of a flocculant is added to the graphene mixed solution to obtain a graphene suspension after mixing. The carbon nanotube dispersion liquid is mixed with the polymer resin emulsion to obtain a carbon nanotube mixed liquid, and an aqueous solution of a flocculant is added to the carbon nanotube mixed liquid to obtain a carbon nanotube suspension after mixing. The filter is placed in the graphene suspension or the carbon nanotube suspension, and dried after suction filtration, and after the filter is removed, the graphene film or the carbon nanotube film is obtained. USE - Method for preparing a carbon nanotube/graphene flexible film. ADVANTAGE - The method enables to prepare a carbon nanotube/graphene flexible film, which has a high content of carbon nano materials, excellent conductivity, resistance to rubbing and soaking, and good flexibility. DETAILED DESCRIPTION - Preparing a carbon nanotube/graphene flexible film comprises dispersing carbon nanotubes in an aqueous solution of a surfactant to obtain a carbon nanotube dispersion, and dispersing in an aqueous solution of a surfactant to obtain a graphene dispersion. The graphene dispersion is mixed with the polymer resin emulsion to obtain a graphene mixed solution, and an aqueous solution of a flocculant is added to the graphene mixed solution to obtain a graphene suspension after mixing. The carbon nanotube dispersion liquid is mixed with the polymer resin emulsion to obtain a carbon nanotube mixed liquid, and an aqueous solution of a flocculant is added to the carbon nanotube mixed liquid to obtain a carbon nanotube suspension after mixing. The filter is placed in the graphene suspension or the carbon nanotube suspension, and dried after suction filtration, and after the filter is removed, the graphene film or the carbon nanotube film is obtained. The film is placed in the carbon nanotube suspension, centrifuged and then taken out and dried to obtain a carbon nanotube/graphene/carbon nanotube flexible film. The carbon nanotube film is obtained by placing it in the graphene suspension, centrifuged and then taken out and dried to obtain a graphene/carbon nanotube/graphene flexible film.