Preparation of Porous Hollow Fiber Membranes and Effect of Post-treatment on Membrane Performance
Yunqing Li · China Plastics Industry · 2008
By mens of dry-jet wet spinning process,PVDF/PVC/PMMA porous hollow fiber membranes were prepared with N-methyl-2 pyrrolidone as solvent and PVP as additive.The effects of spinning patameters and post-treatment on the property of the membrane were studied.The results showed when dry length was 20 cm,inner solution concentration was 40%,and bore liquid velocity was 13 ml/min,the integrated properties of the prepared membrane were the best,the water flux of the hollow fiber membranes was 612 L/(m2·h) and retention ratio was 83%.