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:
May. 24, 2022
Filed:
Dec. 22, 2021
Guangdong University of Technology, Guangzhou, CN;
Yun Chen, Guangzhou, CN;
Xiangyuan Luo, Guangzhou, CN;
Shuquan Ding, Guangzhou, CN;
Canguang Lin, Guangzhou, CN;
Zengguang Gao, Guangzhou, CN;
Xin Chen, Guangzhou, CN;
Xun Chen, Guangzhou, CN;
Jian Gao, Guangzhou, CN;
GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangzhou, CN;
Abstract
A method and device for preparing a graphene-based polyethylene glycol phase change material. The method includes: (S1) dispersing carbon black in deionized water to form a carbon black dispersion; immersing polyurethane sponge in the carbon black dispersion; and taking out polyurethane sponge followed by drying to obtain a polyurethane sponge-carbon black combination; (S2) subjecting the polyurethane sponge-carbon black combination to a first electrical discharge machining to obtain a first intermediate; (S3) ultrasonically mixing the first intermediate, polyethylene glycol, and MgO to obtain a second intermediate; (S4) subjecting the second intermediate to a second electrical discharge machining to obtain a third intermediate; (S5) subjecting the third intermediate to acid washing to obtain a fourth intermediate, and drying the fourth intermediate; (S6) injecting polyethylene glycol into the fourth intermediate followed by stirring in a mold and drying to prepare the graphene-based polyethylene glycol phase change material.