发明申请
- 专利标题： Functionalization of Nanofibrous Microfiltration Membranes for Water Purification
- 专利标题（中）： 纳米纤维微滤膜水净化功能化
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申请号： US14362028申请日： 2012-01-04
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公开(公告)号： US20160184778A1公开(公告)日： 2016-06-30
- 发明人: Benjamin Chu , Benjamin S. Hsiao , Hongyang Ma
- 申请人： Benjamin Chu , Benjamin S. Hsiao , Hongyang Ma
- 国际申请： PCT/US12/20206 WO 20120104
- 主分类号： B01D71/60
- IPC分类号： B01D71/60 ; B01D69/12 ; B01D67/00 ; B01D71/42 ; D01F11/06 ; B29C37/00 ; D01D5/00 ; B29C47/00 ; D01F6/18 ; B01D61/14 ; B01D71/68
摘要：
A high flux and low pressure drop microfiltration (MF) membrane and a method for making the MF membrane. The microfiltration membranes are formed by a method that includes: preparing a nanofibrous structure; and modifying the surface of the nanofibrous structure with a surface modifier. The nanofibrous structure includes an electrospun nanofibrous scaffold or a polysaccharide nanofiber infused nanoscaffold or mixtures thereof. The electrospun nanofibrous scaffold can include polyacrylonitrile (PAN) or polyethersulfone (PES))/polyethylene terephthalate (PET) or mixtures thereof. The surface modifier includes polyethylenimine (PEI) and polyvinyl amine (Lupamin) cross-linked by ethylene glycol diglycidyl ether (EGdGE)/glycidyltrimethylammonium chloride (GTMACl) or poly(1-(1-vinylimidazolium)ethyl-3-vinylimdazolium dibromide (VEVIMIBr).
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