公开(公告)号：EP2361144A2

公开(公告)日：2011-08-31

申请号：EP09819834.4

申请日：2009-10-07

申请人： The Research Foundation of the State University of New York

发明人： CHU, Benjamin ,  HSIAO, Benjamin, S. ,  MA, Hongyang

IPC分类号： B01D71/12 ,  B01D69/10

CPC分类号： B01D69/10 ,  B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B01D67/0002 ,  B01D71/12 ,  B01D71/38 ,  B01D2239/025 ,  B01D2239/0478 ,  B01D2239/0631 ,  B01D2239/0654 ,  B01D2239/10 ,  B01D2239/1208 ,  B01D2239/1216 ,  B01D2239/1233 ,  B01D2323/39 ,  D01D5/0084 ,  D01F2/00 ,  D01F2/24 ,  D06M13/123 ,  D06M15/263 ,  D06M17/00 ,  Y10T428/2495 ,  Y10T428/249921

摘要： A membrane is provided including a coating layer having cellulose nanofibers produced from oxidized cellulose microfibers and an electrospun substrate upon which the coating layer is applied. The nanofibers of the electrospun substrate have a diameter greater than that of the cellulose nanofibers. The membrane also has non-woven support upon which the electrospun substrate is disposed. Microfibers of the non-woven support have a diameter greater than that of the nanofibers of the electrospun substrate. Application of electrospun membrane is in microfiltration area, while the cellulose nanofiber membrane serves in ultrafiltration, nanofiltration, and reverse osmosis after chemical modification.

公开(公告)号：EP2361144B1

公开(公告)日：2018-05-16

申请号：EP09819834.4

申请日：2009-10-07

申请人： The Research Foundation of the State University of New York

发明人： CHU, Benjamin ,  HSIAO, Benjamin, S. ,  MA, Hongyang

IPC分类号： B01D71/12 ,  B01D69/10 ,  B01D39/16

CPC分类号： B01D69/10 ,  B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B01D67/0002 ,  B01D71/12 ,  B01D71/38 ,  B01D2239/025 ,  B01D2239/0478 ,  B01D2239/0631 ,  B01D2239/0654 ,  B01D2239/10 ,  B01D2239/1208 ,  B01D2239/1216 ,  B01D2239/1233 ,  B01D2323/39 ,  D01D5/0084 ,  D01F2/00 ,  D01F2/24 ,  D06M13/123 ,  D06M15/263 ,  D06M17/00 ,  Y10T428/2495 ,  Y10T428/249921

摘要： A membrane is provided including a coating layer having cellulose nanofibers produced from oxidized cellulose microfibers and an electrospun substrate upon which the coating layer is applied. The nanofibers of the electrospun substrate have a diameter greater than that of the cellulose nanofibers. The membrane also has non-woven support upon which the electrospun substrate is disposed. Microfibers of the non-woven support have a diameter greater than that of the nanofibers of the electrospun substrate. Application of electrospun membrane is in microfiltration area, while the cellulose nanofiber membrane serves in ultra-filtration, nanofiltration, and reverse osmosis after chemical modification.

公开(公告)号：EP2661317A1

公开(公告)日：2013-11-13

申请号：EP12732413.5

申请日：2012-01-04

申请人： The Research Foundation of the State University of New York

发明人： HONGYANG, Ma ,  CHU, Benjamin ,  HSIAO, Benjamin, S.

IPC分类号： B01D71/06

CPC分类号： B01D71/60 ,  B01D61/147 ,  B01D67/0004 ,  B01D67/0006 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D71/42 ,  B01D71/48 ,  B01D71/68 ,  B01D2323/30 ,  B01D2323/39 ,  B01D2325/20 ,  B29C37/0025 ,  B29C47/0014 ,  B29C47/0076 ,  B29K2033/20 ,  B29L2031/14 ,  D01D5/0007 ,  D01F6/18 ,  D01F11/06 ,  D04H1/728

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).