用正交设计研究PVDF/PVC/PMMA共混中空纤维膜  

Investigation of PVDF/PVC/PMMA blend hollow fiber membrane by orthogonal design

作　　者：李浩 陈健波[2] 刘湛红 王健 奚旦立[2] 

机构地区：[1]九江市环境监测站,九江332000 [2]东华大学环境科学与工程学院,上海200051 [3]九江市林业科学研究所,九江332006

出　　处：《膜科学与技术》2007年第6期32-36,41,共6页Membrane Science and Technology

摘　　要：制备了PVDF(聚偏氟乙烯)/PVC(聚氯乙烯)/PMMA(聚甲基丙烯酸甲酯)三元共混中空纤维膜,讨论了影响膜性能的主要因素.正交实验结果表明:在PVDF/PVC/PMMA体系中,聚合物总浓度是影响膜的水通量的主要因素;PVDF浓度对膜强度影响最大;PMMA对膜的亲水性有较大的贡献.得到优化的制膜条件为:铸膜液中PVDF∶PVC∶PMMA=7∶1.2∶1.8(质量比),聚合物溶质的总质量分数为17%;添加剂吐温-80的质量分数为6%.The preparation and performance of PVDF/PVC/PMMA blended membrane were investigated. The major factors affecting membrane performance were discussed. The orthogonal design experiment results show that the total polymer concentration is the main factor affecting membrane flux; .the membrane strength and membrane hydrophilicity depend on the concentration of PVDF and PMMA, respectively. The optimizing preparation formulation is obtained that the PVDF ： PVC ： PMMA mass ratio is 7 ： 1.2 ： 1.8, the total polymer concentration is 17%, and the tween-80 concentration is 6%.

关 键 词：共混膜 聚偏氟乙烯 聚氯乙烯 聚甲基丙烯酸甲酯 正交设计 

分 类 号：TB383.2[一般工业技术—材料科学与工程]