▎ 摘　　要

NOVELTY - A cyclodextrin modified graphene filter membrane preparation method involves dipping a polyacrylonitrile hyperfiltration film in sodium hydroxide solution, hydrolyzing the modified polyacrylonitrile hyperfiltration film as a base film, subjecting to ultrasonic processing, and stirring the product with amine and gamma -cyclodextrin. The product is dried and added with chloride compound and n-hexane followed by adding organic phase solution with base film, removing the organic phase solution from product, heating the product and drying the product. USE - Method for preparing a cyclodextrin modified graphene filter membrane for alcohols and alkanes. ADVANTAGE - The method enables preparing the cyclodextrin modified graphene filter membrane with better solvent resistance property and heat stability. DETAILED DESCRIPTION - A cyclodextrin modified graphene filter membrane preparation method involves dipping a polyacrylonitrile hyperfiltration film in sodium hydroxide solution with concentration of 0.3-2.5 mol/l, treating the product at 30-80 degrees C, hydrolyzing the modified polyacrylonitrile hyperfiltration film as a base film, subjecting to ultrasonic processing with deionized water, and stirring the product with amine and gamma -cyclodextrin, where amount of amine compound is 5-19%, amount of gamma -cyclodextrin is 0.019-0.2%, and the amine compound is polyethylene imine, metaphenylene diamine, piperazine and poly(epoxy chloropropane). The product is dried and added with chloride compound and n-hexane to obtain organic phase solution, where the chloride compound is trimesoyl chloride, phthaloyl chloride and paraphthaloyl chloride followed by adding organic phase solution with base film, removing the organic phase solution from product under low room temperature and heating the product under constant temperature and drying the product under vacuum.