摘要
以聚偏氟乙烯(PVDF)为膜体材料,以无机盐LiCl为添加剂,通过相转换法制备蒸馏膜,讨论确定了最优制膜条件为:使用高相对分子质量PVDF,采用DMF溶剂,PVDF浓度为10%,预挥发时间为0.5~1min,LiCl质量分数为3%~5%.
The microporous hydrophobic PVDF membranes for membrane distillation were prepared by phase-inversion process with LiCl as the additives. The proper processing conditions are: utilizing high molecular weight of PVDF, taking DMF as the solvent, PVDF concentration is 10%, time of volatilization is 0.5-1 min, Lithium Chloride content is 3%-5%.
出处
《天津工业大学学报》
CAS
2004年第4期78-82,共5页
Journal of Tiangong University
关键词
膜蒸馏
聚偏氟乙烯
膜性能
membrane distillation
PVDF
properties of membranes