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《中国工程科学》 >> 2014年 第16卷 第12期

热致相分离法高性能聚偏氟乙烯中空纤维膜先进制备技术及应用

1. 清华大学化学工程系膜材料与工程北京市重点实验室,北京 100084;

2. 北京赛诺膜技术有限公司,北京 100083

资助项目 :技术研究发展计划资助项目(863计划)(2012AA03A604);清华大学自主科研计划(20121088039) 收稿日期: 2014-10-08 发布日期: 2015-01-05 14:06:12.000

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摘要

膜分离技术已经成为国际上市政污水和工业废水处理的核心技术。十年来清华大学化学工程系在先进膜材料制备及应用技术研究上开展了大量工作,以膜材料配方设计、膜材料先进制造、膜组件设计与应用为主线,突破多个技术难题和瓶颈,实现了热致相分离(TIPS)法高性能聚偏氟乙烯(PVDF)中空纤维膜的工业化。首先,基于对TIPS法成膜过程的热力学及动力学研究,制备出具有大通量、高强度、亲水性好的PVDF微孔膜;接着,有机结合材料加工和单元操作,形成PVDF中空纤维膜先进制造技术;最后针对不同的工业环境和市政要求,开发出不同规格的高性能膜组件。研究成果表明TIPS法突破了传统非溶剂致相转化法的限制,可以作为市政污水和工业废水处理的首选膜材料制备技术。

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