文献类型：期刊文献

中文题名：PSF-SPES共混中空纤维超滤膜制备的研究

英文题名：Study on the Preparation of Hollow Fiber Ultra-filtration Membrane of PSF-SPES Blend

作者：陈桂娥[1];魏永明[2];许振良[2];房鼎业[2]

机构：[1]上海应用技术学院化学工程系,上海200235;[2]华东理工大学化工学院,上海200237

年份：2005

卷号：18

期号：3

起止页码：425

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：上海市高等学校科学技术发展基金(02HK04);上海市重点培育学科建设项目(Y04011)

语种：中文

中文关键词：中空纤维;超滤膜;磺化聚醚砜;聚砜;醋酸纤维素

外文关键词：hollow fiber membrane; ultra-filtration membrane; sulfonated polyethersulfone; polysulfone; cellouse acetate

摘要：以聚砜(PSF)、磺化聚醚砜(SPES)和醋酸纤维素(CA)为膜材料,水为内凝胶剂,采用干湿法制备了PSF-SPES共混中空纤维超滤膜,探讨了PSF-SPES铸膜液中SPES离子交换容量(IEC)、SPES浓度、添加剂、外凝胶剂的选择和热处理对膜性能的影响。所得共混超滤膜性能如下:w=0.0 0 1的Na2SO4截留率19.9%,通量62 L/(h.m2.MPa);w=0.001的PEG4000截留率78.2%,通量85 L/(h.m2.MPa)。此外,以PSF-SPES中空纤维为支撑膜,采用醋酸纤维素作为涂层液,研究了CA/PSF-SPES复合超滤膜性能,讨论了CA/PSF-SPES共混中空纤维超滤膜结构。
Using polysulfone （PSF）, sulfonated polyethersulfone （SPES） and cellouse acetate （CA） as membrane materials, water as internal coagulant agent, the hollow fiber asymmetric membrane （PSF-SPES） were made by dry/wet phase separation. The effects of different ion exchange capacity （IEC）, SPES concentration, different addictive agents, external coagulant agents （PEG200, butanol and propanol） and heating treatment on membrane performance were discussed. The cross-sectional and surface structure of hollow fiber membranes were examined by electron scanning microscope. The re suit of experiment shows that the retention of ω = 0. 001 Na2 SO4 aqueous solution was 19.9 % with flux being 62 L/（h · m^2 · MPa）, and the retention of　ω =0. 001 PEG4000 aqueous solution was 78.2% with flux being 85L/（h · m^2 · MPa）. Besides, using PSF-SPES hollow fiber membrane as support membrane and CA aqueous solution as coating solution, CA/ PSF-SPES composite membranes were prepared and the performance of the composite membranes was studied. The struc ture of CA/PSF-SPES ultra-filtration membrane was also discussed.