主要探讨了蒸发时间对用两级凝胶法(dual-bath coagulation method)所制得的聚醚砜(PES)超滤膜的性能和结构的影响.结果表明,随着蒸发时间的延长,水通量先减小后增大;肌肝和尿素去除率均是先升高而后降低,然后再升高的趋势;膜的孔隙率上升,平均孔径下降.在蒸发时间为10s时,肌肝和尿素去除率最高,且水通量适中,是血液净化用聚醚砜膜的最佳成形条件.
参考文献
| [1] | van't Hof J A;Reuvers A J;Boom R M.Preparation of asymmetric gas separation membranes with high selectivity by a dual-bath coagulation method[J].Journal of Membrane Science,1992:17-30. |
| [2] | Reuvers A J;Smolders C A.Formation of membranes by means of immersion precipitation.Part Ⅱ.The mechanism of formation of membranes prepared from the system CA/acrtone/water[J].Journal of Membrane Science,1987:67. |
| [3] | 时钧;袁权;高从堦.膜技术手册[M].北京:化学工业出版社,2001:65. |
| [4] | 周金盛;陈观文.CA/CTA共混不对称纳滤膜制备过程中影响因素的探讨[J].膜科学与技术,1999(02):22-26. |
| [5] | 刘永建,沈新元,王庆瑞,陈雪英.纺丝工艺与PAN/CA中空纤维超滤膜性能的关系[J].膜科学与技术,1998(04):42-45. |
| [6] | Yamasaki A;Tyagi R K;Fouda A E.Effect of gelation conditions on gas separation performance for asymmetric polysulfone membranes[J].Journal of Membrane Science,1997:89-94. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%