基本信息:
- 专利标题： 一种高通量的聚偏氟乙烯中空纤维膜的制备方法
- 专利标题（英）：Method for preparing high-flux polyvinylidene fluoride hollow fiber membrane
- 申请号：CN201110409419.9 申请日：2011-12-09
- 公开(公告)号：CN102512987A 公开(公告)日：2012-06-27
- 发明人： 孙兵 , 王磊 , 柴续斌 , 黄丹曦 , 周刚 , 容志勇 , 黄游 , 孟晓荣 , 张东海 , 苗瑞 , 王旭东 , 吕永涛 , 余铭皋 , 赵解杨
- 申请人： 苏州有色金属研究院有限公司 , 西安建筑科技大学
- 申请人地址： 江苏省苏州市工业园区沈浒路200号
- 专利权人： 苏州有色金属研究院有限公司,西安建筑科技大学
- 当前专利权人： 苏州中色德源环保科技有限公司
- 当前专利权人地址： 江苏省苏州市工业园区沈浒路200号
- 代理机构： 西安通大专利代理有限责任公司
- 代理人： 徐文权
- 主分类号： B01D71/34
- IPC分类号： B01D71/34 ; B01D67/00 ; B01D69/08 ; B01D69/02
The invention discloses a method for preparing a high-flux polyvinylidene fluoride hollow fiber membrane. The method comprises the following steps of: mixing polyvinylidene fluoride, a gaseous pore-forming agent, a hydrophilic modifier, additives and organic solvents and making a membrane-making solution; allowing an internal gelling medium and the membrane-making solution to pass through spinning nozzles on dry/wet spinning equipment at the same time, injecting into an external gelling medium, and performing phase-splitting treatment to make a primary membrane; and performing special chemical treatment on the primary membrane with a chemical treatment liquid to obtain a high-flux polyvinylidene fluoride hollow fiber membrane. The invention is characterized in that the membrane is reinforced with the pores by chemical reactions between the internal gelling medium, external gelling medium and chemical treatment liquid and the gaseous pore-forming agent; and the polyvinylidene fluoride hollow fiber membrane has a high flux, a high strength, a high entrapment rate and good hydrophilicity.
公开/授权文献:
- CN102512987B 一种高通量的聚偏氟乙烯中空纤维膜的制备方法 公开/授权日：2014-03-26