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Development of non-leaching and eco-friendly polyhexamethylene guanidine hydrochloride based antimicrobial waterborne polyacrylates

Wei Ding (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)
Kaimei Peng (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)
Tao Zou (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)
Ruonan Wang (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)
Jinshan Guo (Aleo BME, Inc, State College, Pennsylvania, USA)
Wei Ping Tu (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)
Chao Liu (Aleo BME, Inc, State College, Pennsylvania, USA)
Jianqing Hu (School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 6 November 2017

251

Abstract

Purpose

The purpose of this paper is to develop non-leaching and eco-friendly antimicrobial waterborne polyacrylates with excellent antibacterial properties by grafting antibacterial vinyl monomer, glycidyl methacrylate (GMA) modified polyhexamethylene guanidine hydrochloride (PHMG).

Design/methodology/approach

PHMG of different molecular weights were modified by GMA to synthesize antibacterial vinyl monomer, GMA-modified PHMG (GPHMG). Different content and molecular weights of GPHMG were used to synthesize antimicrobial waterborne polyacrylates through emulsion polymerization.

Findings

The addition of GPHMG gained by modifying PHMG showed little influence on thermal stability of the films, but decreased the glass transition temperature(Tg). Meanwhile, the tensile strength decreased, while the breaking elongation increased. The antibacterial properties of the antibacterial films with different GPHMG contents were studied, when GPHMG content was around 0.9 Wt.%, antibacterial films showed excellent antibacterial activity (antibacterial rate >= 99.99 per cent). When weight content of GPHMG in the films remained constant, antibacterial property of films increased first and then decreased with the increase of molecular weight of GPHMG. The structural antibacterial polymer film had more perdurable antibacterial activity than the blended one.

Research limitations/implications

The grafting efficiency of GPHMG to antimicrobial waterborne polyacrylates could be further improved.

Practical implications

Antimicrobial waterborne polyacrylates with excellent antibacterial properties can be used to antibacterial coating and adhesive.

Originality/value

The antibacterial properties of films with different molecular weight of GPHMG were studied, and the durability and stability of antibacterial properties between structural antimicrobial films and blended antimicrobial films were also investigated by ring-diffusion method.

Keywords

Acknowledgements

This work was supported by the Aleo BME, Inc. and the National Natural Science Foundation of China (50903031) and the International Science & Technology Cooperation Program of Guangzhou (2012J5100043).

Citation

Ding, W., Peng, K., Zou, T., Wang, R., Guo, J., Tu, W.P., Liu, C. and Hu, J. (2017), "Development of non-leaching and eco-friendly polyhexamethylene guanidine hydrochloride based antimicrobial waterborne polyacrylates", Pigment & Resin Technology, Vol. 46 No. 6, pp. 458-468. https://doi.org/10.1108/PRT-03-2017-0023

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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