▎ 摘　　要

NOVELTY - Preparing graphene in-situ polymerization polyvinyl chloride hollow fiber ultrafiltration membrane comprises (i) mixing graphene and dispersant, stirring and dispersing for 0.5-1 hours to obtain the graphene dispersant, where the mass ratio of the graphene and the dispersant is 1:1-3, (ii) mixing vinyl chloride monomer, graphene dispersant, initiator and stabilizer in the reaction kettle, mixing and stirring, heating to 50-70 degrees C under pressure of 0.7-0.8 MPa for 10-14 hours, washing and layering, removing the water layer to obtain graphene in-situ polymerization polyvinyl chloride, (iii) mixing graphene in-situ polymerization polyvinyl chloride, solvent, and additive, mixing and stirring, heating to 45-50 degrees C under the room pressure for 10-14 hours, after finishing reaction, allowing to stand for 1-3 hours to obtain the casting solution, (iv) spinning the casting solution by dry-wet method to prepare hollow fiber ultrafiltration membrane, rinsing for 10-14 hours by pure water. USE - The method is useful for preparing graphene in situ polymerization polyvinyl chloride hollow fiber ultrafiltration membrane. ADVANTAGE - The ultrafiltration membrane has good mechanical performance, and good stability under acid, alkali and strong oxidation environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for: a graphene in-situ polymerization polyvinyl chloride hollow fiber ultrafiltration membrane prepared by the above mentioned method.