▎ 摘　　要

NOVELTY - Preparing a high-permeability and pollution-resistant polyvinylidene fluoride (PVDF) or perfluorosulfonic acid-graphene oxide (PFSA-g-GO) ultrafiltration membrane involves coating casting film liquid mainly composed of PFSA-g-GO nanocomposite, PVDF, solvent and porogen on the support to form a film, and then immersing in water for phase inversion reaction to obtain highly permeable and pollution-resistant PVDF/PFSA-g-GO ultrafiltration membrane. The PFSA-g-GO nanocomposite is prepared by the esterification reaction of perfluorosulfonic acid (PFSA) resin and graphene oxide (GO) nanoparticles. The water flux of PVDF/PFSA-g-GO ultrafiltration membrane is 388.3-593. The rejection rate for bovine serum protein is 87.4-96.7%, and the rejection rate to humic acid is 72.3-79.6%. USE - Method for preparing a high-permeability and pollution-resistant PVDF or PFSA-g-GO ultrafiltration membrane. ADVANTAGE - The method enables to prepare a high-permeability and pollution-resistant PVDF or PFSA-g-GO ultrafiltration membrane, that can simultaneously improves the water flux and protein retention rate of the ultrafiltration membrane, effectively improves the hydrophilicity and anti-pollution performance of the membrane, and has excellent mechanical properties.