Title:
PREPARATION METHOD FOR HIGH-MOISTURE-PERMEABILITY FLUORINE-CONTAINING SUPER-OLEOPHOBIC MICROPOROUS MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2022/166430
Kind Code:
A1
Abstract:
Disclosed in the present invention is a preparation method for a high-moisture-permeability fluorine-containing super-oleophobic microporous membrane, comprising: (1) preparing a fluorine-containing polymer white opaque mixture: adding materials in sequence according to weight ratios of 50-90% of A, 3-25% of B, 0-35% of C, and 0-3% of D, and uniformly stirring and mixing the materials in a non-shearing manner, wherein A is a blend of a high-molecular-weight polytetrafluoroethylene dispersion resin and a fluorine-containing ion exchange resin, B is a fluorine-containing alkyl acrylate monomer or a fluorine-containing alkyl methacrylate monomer or a mixed monomer thereof, C is a polyurethane acrylate prepolymer or a fluorine-free alkyl acrylate monomer or a mixture, and D is a high-temperature free radical initiator; (2) directly pouring the fluorine-containing polymer white opaque mixture into a blank pressing column barrel, exhausting air, and pressing a blank at 20-100°C; (3) calendering a pasty extrudate into strips; and (4) stretching the strips, and then thermally shaping the strips into a film.
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Inventors:
WU HUISHENG (CN)
YANG YING (CN)
HAO RONGRONG (CN)
YANG YING (CN)
HAO RONGRONG (CN)
Application Number:
PCT/CN2021/138840
Publication Date:
August 11, 2022
Filing Date:
December 16, 2021
Export Citation:
Assignee:
ZHEJIANG HYPROOF TECH CO LTD (CN)
SHANGHAI HYPROOF NEW MATERIAL TECH CO LTD (CN)
SHANGHAI HYPROOF NEW MATERIAL TECH CO LTD (CN)
International Classes:
C08J5/18; C08F220/18; C08F220/20; C08F220/24; C08F259/08; C08F283/00; C08L51/00
Foreign References:
| CN113150333A | 2021-07-23 | |||
| CN112980118A | 2021-06-18 | |||
| CN112920532A | 2021-06-08 | |||
| CN107353374A | 2017-11-17 | |||
| EP0037745A1 | 1981-10-14 | |||
| CN107216431A | 2017-09-29 | |||
| CN107325238A | 2017-11-07 |
Other References:
"Textile Design", 31 May 2006, CHINA TEXTILE PRESS, CN, ISBN: 7-5064-3855-0, article LI, DONGGAO: "3. Intermolecular Perforation-based Moisture Permeability and Moisture Permeability Mechanisms of Hydrophilic Groups", pages: 315 - 317, XP009538917
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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