▎ 摘　　要

NOVELTY - Preparation of cation-exchange membrane by dissolving polyaniline in organic or ionic solvent, and dispersing graphene and adhesive to obtain modified solution; and immersing sulfonated polyether ether ketone film in modified fluid, and heating at 90-100 degrees C for 3-4 hours. USE - Method for preparing cation-exchange membrane (claimed). ADVANTAGE - The cation exchange film improves selectivity and conductivity. DETAILED DESCRIPTION - Preparation of cation-exchange membrane comprises dissolving polyaniline in organic or ionic solvent, and dispersing graphene and adhesive to obtain modified solution; and immersing sulfonated polyether ether ketone film in modified fluid, and heating at 90-100 degrees C for 3-4 hours. The organic solvent comprises N-methyl pyrrolidone, dimethyl acetamide, N,N-dimethyl formamide and/or dimethyl sulfoxide. The adhesive comprises phenolic resin, urea-formaldehyde resin, silicone resin, and/or furan resin. The mass ratio of polyaniline, graphene, and adhesive is 10:1-5:0.1-0.5. The concentration of modified solution is 40-50 mg/mL.