聚氯乙烯(PVC)超滤膜及工业化

Polyvinyl Chloride (PVC) Ultrafiltratlon Membrane and Its Industrial Production

摘要: 研制了截留相对分子量界限为67000(牛血清蛋白),透水速度为40~50mL/cm²·h(0.3MPa)的聚氯乙烯(PVC)增强型超滤膜.讨论了制膜液结构,成膜工艺等对膜性能的影响,测试了膜的物化性能及膜的形态结构,并制备了干化的PVC超滤膜.同时,用PVC超滤膜制作了φ100mm卷式超滤组件,产水量可达800L/h(0.1MPa).

Abstract: The strengthened polyvinyl chloride (PVC) ultrafiltration membrane with molecular weight cut off 67000 (BSA), water flux 40~50mL·cm^-2·h^-1 (0.3MPa) was prepared. The influence of the structure of casting solution and other conditions on the performance of the membrane was tested and the microstructure of the membrane was observed. Using the PVC UF membrane, the Φ100mm spiral UF module was developed, the water producting capacity of which is 800L·^-1.