发明授权
- 专利标题: Composition for preparation of hollow fiber porous membrane and preparation method using the same
- 专利标题(中): 中空纤维多孔膜制备用组合物及其制备方法
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申请号: US13037389申请日: 2011-03-01
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公开(公告)号: US09095819B2公开(公告)日: 2015-08-04
- 发明人: Changfa Xiao , Xiaoyu Hu , Haixian Liang , Shulin An
- 申请人: Changfa Xiao , Xiaoyu Hu , Haixian Liang , Shulin An
- 申请人地址: CN Tianjin
- 专利权人: Tianjin Polytechnic University
- 当前专利权人: Tianjin Polytechnic University
- 当前专利权人地址: CN Tianjin
- 代理机构: Matthias Scholl P.C.
- 代理商 Matthias Scholl
- 优先权: CN200810151201 20080901
- 主分类号: B01D69/08
- IPC分类号: B01D69/08 ; B01D71/54 ; B01D71/30 ; B01D67/00 ; B01D63/02 ; B01D71/34
摘要:
A composition for preparation of a hollow fiber porous membrane including 40-60 wt. % a polymer matrix, 20-30 wt. % an organic mixed solution, and 20-40 wt. % a water-soluble substance. The polymer matrix is a polymer capable of dissolving in an organic solvent and melt processing. The organic mixed solution is a mixture comprising 60-90 wt. % a first liquid soluble to the polymer matrix and 10-40 wt. % a second liquid insoluble to the polymer matrix. The water-soluble substance is a water-soluble polymer, a low molecular weight water-soluble particle, or a mixture thereof. A method for producing the hollow fiber porous membrane using the composition including a) preparing the organic mixed solution, b) mixing the components of the composition, c) applying melt spinning, d) drawing, and e) washing. The hollow fiber membrane has high strength, large flux, and low cost.
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