Title:
CATALYST FOR THERMAL DEGRADATION OF CARBON-FIBER-AND-RESIN-BASED COMPOSITE MATERIAL AND APPLICATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/088123
Kind Code:
A1
Abstract:
Provided are a catalyst for the thermal degradation of a carbon-fiber-and-resin-based composite material and an application method therefor. The present invention relates to the technical field of the recovery of carbon fibers, and has a high recovery efficiency and a low cost, and the mechanical strength of recovered carbon fibers is also maintained, which can provide support for the circular economy of carbon-fiber-and-resin-based composite materials. The catalyst comprises a first component, a second component and a third component, wherein the first component is potassium chloride or sodium chloride, the second component is zinc chloride or ferric chloride, and the third component is titanium dioxide or silicon oxide; and the mass ratio of the first component, the second component and the third component is 1:0.5:0.5 to 1:2:2. During use, a carbon-fiber-and-resin-based composite material is cut and placed in the catalyst in a molten state, a reaction is carried out for 10 to 30 min at a temperature maintained at 300°C to 500°C, and same is taken out for ultrasonic washing. The technical solution provided in the present invention is applicable to the process of the recovery of carbon fibers.
Inventors:
XIONG MEIRONG (CN)
JI JIANYING (CN)
SUI GANG (CN)
HU ZHONGMIN (CN)
FISHER KEN (CN)
WU TIANYU (CN)
JI JIANYING (CN)
SUI GANG (CN)
HU ZHONGMIN (CN)
FISHER KEN (CN)
WU TIANYU (CN)
Application Number:
PCT/CN2019/119390
Publication Date:
May 14, 2021
Filing Date:
November 19, 2019
Export Citation:
Assignee:
BEIJING AERONAUTICAL SCIENCE & TECH RESEARCH INSTITUTE COMMERCIAL AIRCRAFT CORPORATION OF CHINA (CN)
BOEING CHINA CO LTD (CN)
BOEING CHINA CO LTD (CN)
International Classes:
C08J11/16; C08K7/06; C08L61/06; C08L63/00; C08L67/06; C08L79/08
Foreign References:
| CN107236580A | 2017-10-10 | |||
| CN106748688A | 2017-05-31 | |||
| CN104016851A | 2014-09-03 | |||
| CN106807425A | 2017-06-09 | |||
| JPS62117822A | 1987-05-29 | |||
| DE102017216685A1 | 2019-03-21 |
Other References:
See also references of EP 4056633A4
Attorney, Agent or Firm:
BEIJING JINZHIPUHUA INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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