Title:
ANTIFOULING AND HYDROPHILIC POLYETHERSULFONE ULTRAFILTRATION MEMBRANE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/088665
Kind Code:
A1
Abstract:
An antifouling and hydrophilic polyethersulfone ultrafiltration membrane and a preparation method therefor. By using a Co-γ radiation grafting chemical modification method, an unsaturated bond-containing ionic liquid linked by chemical bonds is uniformly distributed on the surface of polyethersulfone, and then an asymmetric porous membrane is prepared by using an immersion precipitation phase inversion method, a mass ratio of the ionic liquid to the polyethersulfone being 2-11:100. The ultrafiltration membrane is an asymmetric porous membrane, and has excellent antifouling properties, good pure water flux and a good BSA rejection rate.
Inventors:
LI YONGJIN (CN)
NI CHUNJUN (CN)
ZHENG XIN (CN)
NI CHUNJUN (CN)
ZHENG XIN (CN)
Application Number:
PCT/CN2020/123403
Publication Date:
May 14, 2021
Filing Date:
October 23, 2020
Export Citation:
Assignee:
UNIV HANGZHOU NORMAL (CN)
International Classes:
B01D61/14; B01D71/68; B01D67/00; B01D69/02
Foreign References:
| CN110743395A | 2020-02-04 | |||
| CN107044053A | 2017-08-15 | |||
| CN110026091A | 2019-07-19 | |||
| CN104203378A | 2014-12-10 | |||
| CN104624067A | 2015-05-20 | |||
| KR20100116257A | 2010-11-01 | |||
| US20090199619A1 | 2009-08-13 |
Other References:
ZHENG, XIN: "The Preparation of Ionic Liquid Grafted Polyamide 6 and the Investigations on Its Structure, Properties and Applications", SCIENCE-ENGINEERING (A), CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, no. 7, 15 July 2019 (2019-07-15), XP055810373
Attorney, Agent or Firm:
HANGZHOU JUNDU PATENT FIRM LLP (CN)
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