Asymmetric Cellulose Triacetate Dialysis Membrane

Abstract

TOYOBO has been developed a new asymmetric cellulose triacetate hollow fiber membrane.Differently from con-ventional cellulose triacetate membranes, nonsolvent is used as core liquid to form an active layer at inner surface.Porous structure at outer surface is controlled by the coagulation bath conditions. The new membrane, which hasexcellent features such as high inner–surface smoothness, low transmembrane pressure and stable performance dur-ing treatments, is suitable for hemodiafiltration.