▎ 摘　　要

NOVELTY - The method involves manufacturing a microporous membrane support layer using non-solvent phase inversion principle. The microporous membrane is selected as an ultrafiltration membrane. Graphene oxide is dispersed in polyamine aqueous solution. Polyamine is adsorbed on a surface of the microporous membrane support layer. Excess polyamine solution is removed on a surface of the microporous membrane support layer. Microporous membrane support layer post-processing and drying operation is performed to obtain a composite film. Excess polyamine solution removing process is repeated on the composite film to obtain a double or multilayer polyamide composite layer. USE - Method for manufacturing an organic composite film in which both support layer and composite layer contain graphene oxide (Claimed). ADVANTAGE - The method enables improving uniformity, stability and composite membrane pollution effect. DESCRIPTION OF DRAWING(S) - The drawing shows a surface morphology diagram of a organic composite film.