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Effect of Heat-Treatment on Morphology and Performance of PVDF-PFSA Hollow Fiber UF Blend Membranes
Author(s): 
Pages: 501-505
Year: Issue:  4
Journal: Journal of East China University of Science and Technology(Natural Science Edition)

Keyword:  聚偏氟乙烯全氟磺酸共混热处理;
Abstract: 以聚偏氟乙烯(PVDF)与全氟磺酸(PFSA)为共混膜材料,采用湿法纺丝制备了中空纤维共混超滤膜,考察了热处理温度与热处理时间对共混膜的渗透性能、膜结构、受热收缩率及机械性能的影响.结果表明:随热处理温度的升高,截留率先增加后降低,纯水通量先降低后升高,分别在80℃时达到最大值与最小值,80℃时PEG4000的截留率为95.0%,纯水通量为231 L/(m2·h·MPa);膜的渗透性能随热处理时间...
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