The result showed that the casting solution composed of 15%PVDF, 75%N,N-dimethyl acetamide, 3%lithium chloride and 7%polyethylene glycol could perform the membrane with high porosity and pore size.

• 实验结果显示出，以15%25的聚偏氟乙烯(PVDF)为原料、75%25的N，N二甲基乙酰胺(DMAC)为溶剂、3%25的氯化锂(LiCL)和7%25的聚乙二醇(PEG)为添加剂的制膜液，所制得的膜具有较大的孔隙率和孔径。