Title:
CORE-SHELL STRUCTURE MEMBRANE SCALE INHIBITOR AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/259023
Kind Code:
A1
Abstract:
Disclosed are a core-shell structure membrane scale inhibitor and a preparation method therefor, wherein the core-shell structure membrane scale inhibitor comprises a core emulsion obtained via emulsion polymerization, and a shell structure obtained via ultraviolet-light grafting functional monomers. The preparation method comprises: first preparing a core by using an emulsion polymerization process, adding a reactive photo-initiator in the later stage of polymerization, so that the reactive photo-initiator is grafted on the surface of the core, and finally initiating the polymerization of functional monomers by means of ultraviolet light to obtain a core-shell structure membrane scale inhibitor. In the present invention, the surface structure of the core is modified, such that a large number of ionizable groups are grafted on the surface thereof, and thus, a large number of scaling ions such as Ca2+, Mg2+ and Al3+ can be adsorbed. The present invention has excellent scale inhibition performance, and can be widely used in the field of scale inhibition of membrane systems in water treatments such as municipal, electric power, papermaking, environmental protection and domestic water.
Inventors:
HE GUOFENG (CN)
LI PING (CN)
LIU ZHUQING (CN)
WANG QIN (CN)
GUO XUHONG (CN)
WEN YANGBIN (CN)
WEI XINGGUANG (CN)
QIAN WANJUN (CN)
LI PING (CN)
LIU ZHUQING (CN)
WANG QIN (CN)
GUO XUHONG (CN)
WEN YANGBIN (CN)
WEI XINGGUANG (CN)
QIAN WANJUN (CN)
Application Number:
PCT/CN2021/097798
Publication Date:
December 30, 2021
Filing Date:
June 02, 2021
Export Citation:
Assignee:
JIANGSU FEYMER TECH CO LTD (CN)
International Classes:
C08F257/02; B01D65/08; C02F5/10; C08F220/06; C08F220/58; C08F222/02; C08F265/04
Domestic Patent References:
| WO2019246496A1 | 2019-12-26 |
Foreign References:
| CN111732691A | 2020-10-02 | |||
| CN101630555A | 2010-01-20 |
Other References:
WEN YANGBIN, HE GUOFENG; WANG QIN; QIAN WANJUN; GUO XUHONG; LI LI: "Exploration on the Application of Nano-Sized Spherical Polyelectrolyte Brush as Membrane Antiscalants for Wastewater Treatment", HUADONG LI-GONG DAXUE XUEBAO - JOURNAL OF EAST CHINA UNIVERSITYOF SCIENCE AND TECHNOLOGY, GAI-BAN BIANJIBU, SHANGHAI, CN, vol. 47, no. 5, 6 January 2021 (2021-01-06), CN , pages 555 - 560, XP055882869, ISSN: 1006-3080, DOI: 10.14135/j.cnki.1006-3080.20200927001
X. GUO, A. WEISS, M. BALLAUFF: "Synthesis of Spherical Polyelectrolyte Brushes by Photoemulsion Polymerization", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY, US, vol. 32, no. 19, 1 January 1999 (1999-01-01), US , pages 6043 - 6046, XP009098399, ISSN: 0024-9297, DOI: 10.1021/ma990609o
WANG XIANG, WU SHUANG, LI LI, ZHANG RUI, ZHU YAN, BALLAUFF MATTHIAS, LU YAN, GUO XUHONG: "Synthesis of Spherical Polyelectrolyte Brushes by Photoemulsion Polymerization with Different Photoinitiators", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY, vol. 50, no. 6, 16 March 2011 (2011-03-16), pages 3564 - 3569, XP055882872, ISSN: 0888-5885, DOI: 10.1021/ie101764s
X. GUO, A. WEISS, M. BALLAUFF: "Synthesis of Spherical Polyelectrolyte Brushes by Photoemulsion Polymerization", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY, US, vol. 32, no. 19, 1 January 1999 (1999-01-01), US , pages 6043 - 6046, XP009098399, ISSN: 0024-9297, DOI: 10.1021/ma990609o
WANG XIANG, WU SHUANG, LI LI, ZHANG RUI, ZHU YAN, BALLAUFF MATTHIAS, LU YAN, GUO XUHONG: "Synthesis of Spherical Polyelectrolyte Brushes by Photoemulsion Polymerization with Different Photoinitiators", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY, vol. 50, no. 6, 16 March 2011 (2011-03-16), pages 3564 - 3569, XP055882872, ISSN: 0888-5885, DOI: 10.1021/ie101764s
Attorney, Agent or Firm:
CHANGZHOU YIRUI PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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