Title:
METHOD FOR PREPARING MULTILAYER NANOGRAPHITE FLAKE HYBRID TRANSPARENT POLYIMIDE THIN FILM SYNTHESIS AND PRODUCT THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/029391
Kind Code:
A1
Abstract:
The present invention discloses a multilayer nanographite flake hybrid transparent polyimide thin film comprising the following substances in parts by weight: 200-500 parts of polyimide, 3-12 parts of nanographite, 3-12 parts of microcracks staining agent. According to the present multilayer nanographite flake hybrid transparent polyimide thin film, the combination of nanographite and microcracks staining agent makes the material more sensitive to tiny cracking patterns, producing alterations observable to the naked eye and easily identifiable. The color change is clearly visible within a few millimeters around the cracking. The safety conditions of the composite materials used in airplanes and automobiles can be effectively monitored, thus avoiding the occurrence of sudden accidents.
Inventors:
XU WEIWEI (CN)
GAO SHANGLIN (CN)
WANG YONG (CN)
QI XIAODONG (CN)
JIANG XIN (CN)
CHEN CHEN (CN)
GAO SHANGLIN (CN)
WANG YONG (CN)
QI XIAODONG (CN)
JIANG XIN (CN)
CHEN CHEN (CN)
Application Number:
PCT/CN2018/107191
Publication Date:
February 13, 2020
Filing Date:
September 25, 2018
Export Citation:
Assignee:
JIANGSU YABAO INSULATION MAT INC (CN)
International Classes:
C08L79/08; C08J5/18; C08K3/04; C08K5/01; C08K5/03; C08K5/32
Domestic Patent References:
| WO2009069715A1 | 2009-06-04 |
Foreign References:
| CN106496611A | 2017-03-15 | |||
| CN103145987A | 2013-06-12 | |||
| JP2003213014A | 2003-07-30 | |||
| JP2009025625A | 2009-02-05 |
Attorney, Agent or Firm:
BEIJING WENYUAN PATENT AGENCY CO., LTD (CN)
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