The physical properties of hemofiltration module made from polyether sulfone hollow fiber membrane

Abstract

Different membrane forming conditions including solid content, spinning solution temperature, the pressure of internal quench medium, concentration of coagulation bath, and winding-up velocity, etc. have different influence on the structure and physical properties of PES hollow fiber membranes prepared. Membrane properties i.e., void content and water flux decrease with increasing content of PES in the spinning solution. Water flux reaches a maximum while retention reaches a minimum when spinning solution temperature reaches 35°C. Water flux, inner and outer diameters increase and wall thickness decreases with increasing pressure of internal quench medium. Water flux reaches a minimum when the concentration of coagulation bath reaches 20%. The inner diameter of hollow fiber membrane increases and outer diameter does not change with increasing 1st godget velocity. The inner and outer diameters and membrane wall thickness decrease with increasing winding-up velocity. The clearance of creatinine and urea reaches 92 and 86% respectively. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007