Porous Polyethersulfone(PES) Composite Membrane with Highly Symmetric Interconnected Pores Structure

Polyethersulfone due to biocompatibility, good chemical resistance, thermal stability and mechanical properties is widely used as supportive layers for a wide range of composite gas and aqueous filters. Phase inversion method is a main process to fabricate membranes. Phase inversion technique is always results in membranes with asymmetrical structure. Ln this study a combination of two types of phase inversion with different separation mechanisms was used to fabricate polyethersolfone based membrane with highly homogenous, symmetrical and interconnected pore structure. The nominal sample possesses a very high porosity and flux.

polyethersulfone, relative humidity, symmetric and asymmetric membranes, phase separation