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<p>Imparting cotton fabrics with durable antibacterial and deodorizing functions while preserving their original hygroscopic properties presents a significant challenge. In this study, a novel surface-modified cotton fabric, Cotton-grafted-polyacrylic acid/polyhexamethylene guanidine (Cot-<i>g</i>-PAA/PHMG), was prepared through irradiation-induced graft polymerization of acrylic acid (AA), followed by electrostatic adsorption of polyhexamethylene guanidine (PHMG). The effect of polyacrylic acid (PAA)/PHMG loading on the structure and overall performance of Cot-<i>g</i>-PAA/PHMG was comprehensively investigated and compared to untreated cotton fabric. The results demonstrated that the PAA/PHMG layer significantly enhances the cotton fabric’s antibacterial and deodorizing properties. Specifically, Cot-<i>g</i>-PAA/PHMG can absorb both acidic and alkaline gaseous pollutants due to its amphoteric structure, achieving removal rates of 95.3% for ammonia and 98.4% for acetic acid. Even after 50 rounds of accelerated washing, the deodorization rate of Cot-<i>g</i>-PAA/PHMG remains above 90%. Additionally, the guanidine-functionalized cotton fabric exhibits antibacterial rates of up to 99.99% against both <i>Gram-negative Escherichia coli</i> and <i>Gram-positive Staphylococcus aureus</i>, even after 50 laundering cycles. These findings provide a simple and versatile approach for producing antimicrobial and odor-resistant materials suitable for hygienic applications.</p> Graphical abstract <p>This paper describes the synthesis and application of Cot-<i>g</i>-PAA/PHMG. PHMG-treated fabrics gained antimicrobial and deodorant properties.</p>

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Facile and versatile fabrication of multifunctional cotton fabrics with persistent antibacterial and deodorizing properties

  • 期刊论文

  • 发表日期：

    2025年2月3日

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  • Hongwei Han,
  • Jiangtao Hu,
  • Jialiang Zhou,
  • Jiawei Gu,
  • Xiang He,
  • Qianhong Gao,
  • Guozhong Wu

摘要

Imparting cotton fabrics with durable antibacterial and deodorizing functions while preserving their original hygroscopic properties presents a significant challenge. In this study, a novel surface-modified cotton fabric, Cotton-grafted-polyacrylic acid/polyhexamethylene guanidine (Cot-g-PAA/PHMG), was prepared through irradiation-induced graft polymerization of acrylic acid (AA), followed by electrostatic adsorption of polyhexamethylene guanidine (PHMG). The effect of polyacrylic acid (PAA)/PHMG loading on the structure and overall performance of Cot-g-PAA/PHMG was comprehensively investigated and compared to untreated cotton fabric. The results demonstrated that the PAA/PHMG layer significantly enhances the cotton fabric’s antibacterial and deodorizing properties. Specifically, Cot-g-PAA/PHMG can absorb both acidic and alkaline gaseous pollutants due to its amphoteric structure, achieving removal rates of 95.3% for ammonia and 98.4% for acetic acid. Even after 50 rounds of accelerated washing, the deodorization rate of Cot-g-PAA/PHMG remains above 90%. Additionally, the guanidine-functionalized cotton fabric exhibits antibacterial rates of up to 99.99% against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, even after 50 laundering cycles. These findings provide a simple and versatile approach for producing antimicrobial and odor-resistant materials suitable for hygienic applications.

Graphical abstract

This paper describes the synthesis and application of Cot-g-PAA/PHMG. PHMG-treated fabrics gained antimicrobial and deodorant properties.