- Fabrication of Polyphenylsulfone (PPSU) Membranes for Nano Filtration and Ultra Filtration تحضير اغشية بوليمرية بأستخدام بولي فنينل سلفون لتطبيقات الترشيح الفائق النانوي

Abstract

polyphenylsulfone (PPSU) hollow fiber membranes are prepared by using phase inversion method from two different (PPSU) concentrations and various extrusion pressures. Cross-section and outer structures were characterized by using scanning electron microscope (SEM) and atomic force microscopy (AFM) . Mean pore size, pore size distribution, and mean roughness of the (PPSU) hollow fibers surfaces evaluated by (AFM) . It was found that the morphology of the (PPSU) fibers have sponge-like and finger-like structures with different extrusion pressures and (PPSU) concentrations. The mean pore size and mean roughness for inner and outer surfaces decreased with increase of extrusion pressure at two different (PPSU) concentrations . Moreover , the lead ion rejection was significantly improved from (19 to 78) % with increase of the extrusion pressure from (2.5 to 3) bar at (25 wt. %) PPSU concentration.