▎ 摘　　要

NOVELTY - A composite positive osmosis membrane comprises polymer base layer, a graphene layer and a lower layer of a highly-devoid of pores, where the polymer is a mixture of an isopropylacrylamide monomer and N, N-methylene bisacrylamide monomer by free radical polymerization of the copolymer, the height of the base is a hydrophobic sparse aromatic polymer film, the mass ratio of the two monomers is 1:9-9: 1, and the mass of the graphene is 2.5-70% of copolymer. USE - Composite positive osmosis membrane. ADVANTAGE - The osmosis membrane has high water flux and salt rejection rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing composite positive osmosis membrane.