▎ 摘　　要

NOVELTY - Modified wholly aromatic polyamide film comprises base film and aromatic polyamide active layer surface of base film. The base film is polysulfone ultrafiltration membrane. The wholly aromatic polyamide active layer is prepared by reacting graphene oxide containing m-phenylenediamine water phase solution with trimesoyl chloride. USE - Modified wholly aromatic polyamide film. ADVANTAGE - The modified wholly aromatic polyamide film has good hydrophilic performance, large membrane flux and strong pollution resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing modified wholly aromatic polyamide film, which involves: (A) placing graphene oxide in water and dispersing ultrasonically to obtain graphene oxide stock solution, mixing graphene oxide stock solution into metaphenylene diamine aqueous solution to obtain graphene oxide-containing m-phenylenediamine aqueous solution; (B) immersing polysulfone ultra-filtration membrane in metaphenylene diamine which contains graphene oxide aqueous phase solution, taking out, removing polysulfone ultrafiltration film surface of m-phenylenediamine water phase which contains graphene oxide solution, soaking normal hexane solution of trimesoyl chloride, forming wholly aromatic polyamide active layer to obtain initial film; and (C) washing initial film, dipping initial film into sodium carbonate solution, taking and carrying out heat treatment to obtain modified wholly aromatic polyamide film.