The influence of graphene addition on the properties of composite membranes RG / PAN and their potential application

PAN is an inexpensive and popular engineering polymer, which is widely used in membrane techniques: ultrafiltration (UF), nanofiltration (NF), reverse osmosis (RO) and pervaporation (PV). It is characterized by good thermal stability, high thermal conductivity, chemical resistance, solubility in many classic solvents, resistance to UV radiation and good mechanical properties. It can be easily modified both chemically and physically. The paper describes the method of obtaining composite membranes by the phase inversion method of homogeneous dispersion of graphene (RG) in a solution of polyacrylonitrile (PAN) dissolved in N, N-dimethylformamide (DMF). The influence of RG concentration on physicochemical properties, transport and separation properties (removing microplastic), and resistance to fouling of composite was investigated.