A lignin-based epoxy/TiO2 hybrid nanoparticle for multifunctional bio-based epoxy with improved mechanical, UV absorption and antibacterial properties

Jiayao Yang; Jinfeng Dai; Xiaohuan Liu; Shenyuan Fu; Enmin Zong; Pingan Song

doi:10.1016/j.ijbiomac.2022.04.229

A lignin-based epoxy/TiO₂ hybrid nanoparticle for multifunctional bio-based epoxy with improved mechanical, UV absorption and antibacterial properties

Int J Biol Macromol. 2022 Jun 15:210:85-93. doi: 10.1016/j.ijbiomac.2022.04.229. Epub 2022 May 4.

Authors

Jiayao Yang¹, Jinfeng Dai¹, Xiaohuan Liu², Shenyuan Fu³, Enmin Zong⁴, Pingan Song⁵

Affiliations

¹ College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China.
² College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China; College of Life Science, Taizhou University, 1139 Shifu Street, Taizhou 318000, PR China. Electronic address: liuxiaohuancaf@163.com.
³ College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China. Electronic address: fshenyuan@sina.com.
⁴ College of Life Science, Taizhou University, 1139 Shifu Street, Taizhou 318000, PR China.
⁵ Centre for Future Materials, University of Southern Queensland, Springfield Central 4300, Australia; School of Agriculture and Environmental Science, University of Southern Queensland, Springfield Central 4300, Australia. Electronic address: pingan.song@usq.edu.au.

PMID: 35525492
DOI: 10.1016/j.ijbiomac.2022.04.229

Abstract

Lignin, as a natural polymer material, has the advantages of green safety, renewable, and pollution-free. It has a wide application prospect in the field of thermosetting. However, it has been attractive but a huge challenge to design high performance and high added-value lignin-based epoxy resin. Herein, lignin-based epoxy (LEP) was synthesized from moso bamboo-derived lignin, and then lignin-based epoxy/titanium dioxide (LEP/TiO₂) hybrid nanoparticle was synthesized via liquid deposition method for modifying lignin-based epoxy resin to prepare multifunctional bio-based epoxy. The results show that the LEP/TiO₂ hybrid nanoparticle exhibits a stable topological surface shape and good dispersion and uniformity. By adding 10 wt% LEP/TiO₂ hybrid nanoparticles, the multifunctional bio-based epoxy exhibits good mechanical strength and toughness, and the tensile strength and fracture toughness reach 36 MPa and 1.26 MPa·m^1/2, respectively. In addition, the thermal stability, UV absorption and antibacterial properties of the multifunctional bio-based epoxy are further improved. This study provides a facile and efficient method for the preparation of high-performance multifunctional bio-based epoxy composite and a novel solution for the utilization of lignin.

Keywords: Antibacterial activity; Bio-based epoxy; Lignin; Nano-TiO(2); UV absorption.

MeSH terms

Anti-Bacterial Agents / pharmacology
Epoxy Resins*
Lignin
Nanoparticles*
Titanium

Substances

Anti-Bacterial Agents
Epoxy Resins
titanium dioxide
Lignin
Titanium