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:
Aug. 06, 2024
Filed:
Jun. 01, 2023
Zhejiang University of Science and Technology, Hangzhou, CN;
Daliang Guo, Hangzhou, CN;
Lizheng Sha, Hangzhou, CN;
Huifang Zhao, Hangzhou, CN;
Jing Li, Hangzhou, CN;
Yinchao Xu, Hangzhou, CN;
Xin Zhang, Hangzhou, CN;
Bei Liu, Hangzhou, CN;
Tianzhong Yuan, Hangzhou, CN;
Ziyang Chang, Hangzhou, CN;
Qianyu Sun, Hangzhou, CN;
Yahui Meng, Hangzhou, CN;
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Zhejiang, CN;
Abstract
Disclosed is a preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores, including adding carbon fibers to alkali lignin aqueous solution for treatment, controlling the alkali lignin aqueous solution to reach subcritical water conditions, and modifying the carbon fibers by sodium phenol reactive groups under the subcritical water conditions of the alkali lignin, for improving hydrophilic groups on a surface of the carbon fibers and a surface rough structure; further, modifying the carbon fibers to produce carbon nanotube clusters on the surface of the carbon fibers to obtain surface-thermally-modified carbon fibers, and adding the surface-thermally-modified carbon fibers to a dispersant for dispersion, stirring together with auxiliary materials to prepare a mixed slurry, and preparing the mixed slurry into the carbon-paper base paper by wet forming process.