The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2025
Filed:
Aug. 24, 2022
Shaoxing Research Institute of Shanghai University, Zhejiang, CN;
Aijun Li, Zhejiang, CN;
Lixin Ning, Zhejiang, CN;
Zhiwei Kang, Zhejiang, CN;
Zhiwei Li, Zhejiang, CN;
Liquan Chen, Zhejiang, CN;
Liqi Liu, Zhejiang, CN;
Lintao Jia, Zhejiang, CN;
Mengqian Wang, Zhejiang, CN;
SHAOXING RESEARCH INSTITUTE OF SHANGHAI UNIVERSITY, Shaoxing, CN;
Abstract
Disclosed is a carbon fiber preform, a preparation method therefor and a preparation method for carbon/carbon composites, falling within the technical field of composites. The carbon fiber preform provided by the present disclosure includes a plurality of stacked carbon fiber cloths and prestressed layers arranged between every two of adjacent carbon fiber cloths, the prestressed layer including a boron-containing phenol-formaldehyde resin coating and carbon fiber bundles distributed within the boron-containing phenol-formaldehyde resin coating. In the present disclosure, the prestressed layers are formed by adding the carbon fiber bundles and a boron-containing phenol-formaldehyde resin precursor to a two dimensional (2D) stacked preform, thereby counteracting internal stresses during carbonization and obtaining a carbon/carbon composite having higher strength and being less prone to cracking.