聚偏氟乙烯膜结构的研究

Study on PVDF membrane pore-structure

选用聚偏氟乙烯（ＰＶＤＦ）为膜材料，聚乙二醇（ＰＥＧ）为添加剂，二甲基乙酰胺（ＤＭＡＣ）和Ｎ－甲基吡咯烷酮（ＮＭＰ）为溶剂，讨论了制膜液组成，凝胶浴及溶剂蒸发时间对膜孔道结构的影响．

In this paper PVDF was chosen as the membrane material. PEG as the additive and DMAC and NMP as the solvents. The effects of casting solution,coagulation medium and solvent evaporation velocity on pore structure were investigated.