▎ 摘　　要

NOVELTY - A graphene modified polyvinylidene fluoride (PVDF) high-performance composite membrane comprises 0.5-5 %mass graphene, 10-30 %mass PVDF, 2-8 %mass N-methylpyrrolidone (NMP), 40-60 %mass organic solvent, and 5-20 %mass pore-forming agent. USE - Graphene modified polyvinylidene fluoride high-performance composite membrane. ADVANTAGE - The graphene modified PVDF high-performance composite film has excellent stability and mechanical strength, and high water flux, and improves the removing rate of soluble organic matter, and anti- pollution performance of the high performance composite film. The graphene can be attached to the PVDF section, outer surface, inner surface, especially on the surface of the film hole, which can improve the removal rate of the organic material. The pore-forming agent is more convenient to fall into the coagulation bath, thus ensuring the aperture of the composite film with uniformity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene-modified PVDF high-performance composite membrane.