▎ 摘　　要

NOVELTY - Graphene foam/polymer fiber 3D composite foam film is prepared by concentrating aqueous graphene oxide solution to obtain high viscosity aqueous brownish yellow graphene oxide sol, coating sol on smooth substrate, machine rolling to obtain water-soluble graphene oxide film, coating membrane with 3D polymer fiber to obtain 3D upper layer which is graphene oxide/polymer fiber 3D composite, forming film, drying quickly, and immersing film in reducing agent solution or subjecting to vapor reduction. USE - Preparation of graphene foam/polymer fiber 3D composite foam film (claimed). ADVANTAGE - The preparation of graphene foam/polymer fiber 3D composite foam film is fast, easy, low cost, simple, suitable for industrialized production, and yields product which is light weight, elastic, flexible and has large area, high porosity, high conductivity, high mechanical strength. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph image of graphene foam/polymer fiber 3D composite foam film.