▎ 摘　　要

NOVELTY - A polyvinylidene fluoride composite graphene filter membrane comprises 30-45 massparts polyvinylidene fluoride homopolymer, 60-75 massparts dimethylacetamide, 1-2 massparts polyvinylpyrrolidone and 0.5-2.5 massparts modified graphene. USE - Polyvinylidene fluoride composite graphene filter membrane. ADVANTAGE - The polyvinylidene fluoride composite graphene filter membrane has improved dispersibility, hydrophilicity and mechanical strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for producing polyvinylidene fluoride composite graphene filter membrane, which involves placing polyvinylidene fluoride homopolymer, dimethylacetamide, polyvinylpyrrolidone, modified graphene into the reaction kettle and setting temperature to 85-95 degrees c to obtain spinning solution, statically defoaming and spinning to form into a tow, soaking the tow in a 10% ethanol solution for 10 minutes and immersing in a coagulation bath for 24-28 hours to obtain a hollow fiber bundle with stable pore diameter and drying to obtain the finished product.