Title:
SINGLE PIECE-TYPE BIPOLAR FILM ROLL WITH MESH CLOTH SUPPORT AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/155854
Kind Code:
A1
Abstract:
A single piece-type bipolar film roll with a mesh cloth support and a manufacturing method therefor. The single piece-type bipolar film roll is supported by a high-strength ultra-high molecular weight polyethylene mesh cloth, one side of the single piece-type bipolar film roll is a cation exchange layer containing a benzenesulfonic acid group, the other side of the single piece-type bipolar film roll is an anion exchange layer containing a benzyl dimethyl butyl ammonium quaternary amine group, and the middle is a water dissociation catalyst layer containing a benzyl methyl butyl amine tertiary amine group, and the three layers form the single piece-type bipolar film roll. By providing a wider protective film and a narrower spacing film, a dipping and absorbing film roll is polymerized to prepare a composite base film roll which is then subjected to continuous sulfonation to prepare a single-sided sulfonated composite positive film roll, and then the unreacted blank side is sequentially subjected to three-step chemical reactions such as complete chloromethylation, complete tertiary amination and incomplete methylation, so as to prepare a single piece-type bipolar film roll having a compact structure, a clear middle interface, a high mechanical strength and a stable quaternary amine group, and the product qualification rate is high; and the single piece-type bipolar film roll is suitable for a bipolar film electrodialysis engineering application of an organic material-containing system.
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Inventors:
LEI YINLIN (CN)
LOU YONGTONG (CN)
QING BO (CN)
CHEN WENLAN (CN)
YIN JIN (CN)
LOU YONGTONG (CN)
QING BO (CN)
CHEN WENLAN (CN)
YIN JIN (CN)
Application Number:
PCT/CN2021/073135
Publication Date:
July 28, 2022
Filing Date:
January 21, 2021
Export Citation:
Assignee:
QUZHOU LANRAN NEW MAT CO LTD (CN)
International Classes:
B01D61/44; B01D67/00; B01D69/02; B01D69/12; B01D71/26; B01D71/28
Foreign References:
| CN104861194A | 2015-08-26 | |||
| CN108752681A | 2018-11-06 | |||
| CN106589432A | 2017-04-26 | |||
| CN106582333A | 2017-04-26 | |||
| US4024043A | 1977-05-17 | |||
| CN105833737A | 2016-08-10 | |||
| CN107321199A | 2017-11-07 | |||
| CN201610776267A | 2016-08-31 | |||
| CN102061004A | 2011-05-18 | |||
| CN108752681A | 2018-11-06 | |||
| CN2518105Y | 2002-10-23 | |||
| CN201780022924A | 2017-04-13 |
Other References:
"Technical Manual for Bipolar Films", July 2004, CHEMICAL INDUSTRY PRESS, pages: 136 - 89
ELECTROCHIMICA ACTA, vol. 31, no. 9, 1986, pages 1175 - 1176
JOURNAL OF POWER SOURCES, vol. 375, 2018, pages 170 - 184
See also references of EP 4197624A4
ELECTROCHIMICA ACTA, vol. 31, no. 9, 1986, pages 1175 - 1176
JOURNAL OF POWER SOURCES, vol. 375, 2018, pages 170 - 184
See also references of EP 4197624A4
Attorney, Agent or Firm:
KG INTELLECTUAL PROPERTY LAW FIRM (CN)
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