METHOD FOR MANUFACTURING THIN-FILM COMPOSITE MEMBRANE FOR WATER TREATMENT, HAVING EXTREME ACID AND BASE STABILITY

Title:

METHOD FOR MANUFACTURING THIN-FILM COMPOSITE MEMBRANE FOR WATER TREATMENT, HAVING EXTREME ACID AND BASE STABILITY

Document Type and Number:

WIPO Patent Application WO/2023/229390

Kind Code:

A1

Abstract:

The present invention relates to a thin-film composite membrane for water treatment and a method for manufacturing same. A selective layer of the thin-film composite membrane according to the present invention is based on cross-linked quaternary ammonium with high hydrolysis resistance, and thus, excellent stability both in extreme acid and base conditions may be provided. In addition, the surface of the thin-film composite membrane according to the present invention has positive charges and thus can have a high removal rate and high selectivity for positively charged solutes.

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Inventors:

LEE JUNG HYUN (KR)
JEON SUNG KWON (KR)
CHOI JU YEON (KR)
KIM HAN SOO (KR)

Application Number:

PCT/KR2023/007154

Publication Date:

November 30, 2023

Filing Date:

May 25, 2023

Export Citation:

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Assignee:

UNIV KOREA RES & BUS FOUND (KR)

International Classes:

B01D71/58; B01D67/00; B01D69/10; B01D69/12; B01D71/26; C02F1/44

Foreign References:

KR20170141466A	2017-12-26
KR20190025783A	2019-03-12
JP2009532551A	2009-09-10
KR20200139515A	2020-12-14
KR20170079777A	2017-07-10
KR20220155920A	2022-11-24

Attorney, Agent or Firm:

DANA PATENT LAW FIRM (KR)

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