Multilayer two-dimensional lignin/ZnO composites with excellent anti-UV aging properties for polymer films

Lizhu Zhang; Yuanyuan Wang; Dongjie Yang; Huan Wang; Weifeng Liu; Zhixian Li

Green Chemical Engineering (Dec 2022)

Multilayer two-dimensional lignin/ZnO composites with excellent anti-UV aging properties for polymer films

Lizhu Zhang,
Yuanyuan Wang,
Dongjie Yang,
Huan Wang,
Weifeng Liu,
Zhixian Li

Affiliations

Lizhu Zhang: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China
Yuanyuan Wang: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China
Dongjie Yang: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China; Corresponding author.
Huan Wang: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China; Guangzhou Key Laboratory of Sensing Materials and Devices, Centre for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China; Corresponding author.
Weifeng Liu: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China
Zhixian Li: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, 510640, China

Journal volume & issue: Vol. 3, no. 4
pp. 338 – 348

Abstract

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Lignin is a kind of natural green polymer with abundant active functional groups and designable molecular structure. In this work, the quaternized lignosulfonate (QLS) with amphoteric characteristic was prepared through chemical modification using lignosulfonate sodium (LS). Then, a lignin-confined multilayered two-dimensional composite (QLS/ZnO) was prepared by one-step dynamic hydrothermal method using QLS, zinc nitrate, and hexamethylenetetramine. The QLS/ZnO has a regular pie-shaped structure, which is composed of 3–5 layers of two-dimensional nanosheets with a thickness of ∼10 nm. It shows excellent ultraviolet light absorption performance and active photoelectron scavenging performance, and thus showing great application potential in polymer materials. The water polyurethane (WPU) and polyvinyl alcohol (PVA) films showed excellent UV shielding performance and good mechanical properties when doped with the QLS/ZnO. The tensile strength of WPU + 0.6 wt% QLS/ZnO and PVA + 0.8 wt% QLS/ZnO composite films is increased by 49% and 24%, respectively, and the elongation at break is increased by 138% and 33%. Furthermore, the composite films showed excellent anti-UV aging resistance after being aged under strong UV irradiation for 14 days. This work is of great significance to the high-value application of industrial lignin in the field of nano-functional materials.

Published in Green Chemical Engineering

ISSN: 2666-9528 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology: Chemical engineering; Science: Chemistry: Organic chemistry: Biochemistry
Website: https://www.keaipublishing.com/en/journals/green-chemical-engineering/

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