Title:
POLYIMIDE THICK MEMBRANE AND QUANTUM CARBON-BASED MEMBRANE AS WELL AS PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/151079
Kind Code:
A1
Abstract:
Provided are a polyimide thick membrane and a quantum carbon-based membrane as well as a preparation method therefor, the preparation method for the polyimide thick membrane comprising: hybridizing phenyl-containing anhydride and diamine to obtain a thermoplastic polyimide resin precursor; mixing the thermoplastic polyimide resin precursor and a monomer reactant and performing crosslinking reaction to enable two tail ends of the thermoplastic polyimide resin precursor to form a monomer structure, so as to obtain an imide intermediate composition; imidizing the imide intermediate composition to obtain a resin solution mixture; and spray-coating a conveying belt with the resin solution mixture continuously and uniformly by a blowout type spray-coating method, curing and drying to obtain the polyimide thick membrane. The polyimide thick membrane and the quantum carbon-based membrane are high in flatness and free from inclined warping phenomenon.
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Inventors:
LIU PING (CN)
Application Number:
PCT/CN2019/079993
Publication Date:
July 30, 2020
Filing Date:
March 28, 2019
Export Citation:
Assignee:
SHENZHEN DANBOND TECH CO LTD (CN)
International Classes:
C08J5/18; C01B32/15; C01B32/184; C08G73/10; C08L79/08
Domestic Patent References:
| WO2017112638A1 | 2017-06-29 | |||
| WO2017027456A1 | 2017-02-16 |
Foreign References:
| CN103232818A | 2013-08-07 | |||
| CN101168598A | 2008-04-30 | |||
| CN106432723A | 2017-02-22 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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