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. 29, 2023
Filed:
Mar. 29, 2021
Guangxi University, Guangxi, CN;
Hongxiang Zhu, Guangxi, CN;
Hui He, Guangxi, CN;
Lei Wang, Guangxi, CN;
Shuangfei Wang, Guangxi, CN;
Hang Zhou, Guangxi, CN;
GUANGXI UNIVERSITY, Guangxi, CN;
Abstract
The present invention provides a bionic fiber adsorptive material with multi-adsorption sites and a preparation method and use thereof, and the material is rich in multi-adsorption sites (N, O and S). The material is obtained by blending three polyethyleneimine polymers modified by multifunctional groups respectively with a carboxylated nanocellulose and graphene oxide, then adopting a coaxial spinning method based on a principle of imitating spider spinning, and then adopting a post-crosslinking technology. The material has a multilayer structure with the nanocellulose as a skeleton, the graphene oxide as an outer layer, and the three polyethyleneimine polymers modified by the multifunctional groups respectively as an inner layer, and a connection among the layers is a chemical bond connection. Densities of N, O and S adsorption sites of the material according to the present invention are all higher than 5 mmol/g.