▎ 摘　　要

NOVELTY - Controlling graphene oxide alkenyl composite film performance involves dissolving proper polymer in the solvent to prepare uniform solution, preparing nano fibre by electrostatic spinning, cold pressing processing to obtain the nano fibre base film, ultrasonically dispersing an amount of graphene oxide nanometre sheet in the solvent to prepare solution A, dissolving proper long-chain polyelectrolyte in the solvent, preparing into solution B, ultrasonically mixing the prepared solution A and solution B with a certain proportion to form mixed solution C, depositing the solution C on the surface of the nano fibre base film and drying in the shade to obtain product. USE - Method for controlling graphene oxide alkenyl composite film performance used as polymer film additive to construct water permeation channel, increasing the function of surface hydrophilicity of composite film. ADVANTAGE - The method is simple and effective, energy-saving and environment-friendly, and can realize the effective control of the graphene oxide layer nano-material barrier, suitable for producing composite nano-filtration membrane with low cost on a large scale. The method uses high-throughput electrostatic spinning nano fiber as base film, taking graphene oxide nano sheet as barrier layer, using flexible long-chain polyelectrolyte to fine control the sheet interlayer distance, to construct high permeability composite filter film, solving the problem that the traditional graphene oxide alkenyl composite film has low permeability, poor stability and so on.