Long-lasting antibacterial properties in cotton fabric address microbial growth, odor formation, and hygiene issues, which are common drawbacks at the usage of natural fibers. Recent cotton market demands durable, eco-friendly solutions that enhance fabric longevity and performance in various applications. This study presents the development of a durable and multifunctional antibacterial cotton fabric achieved through a feasible and cost-effective “one-bath” impregnation process. A N -halamine precursor, featuring a terminal chlorine group (TD@Cl), was chemically bonded to the hydroxyl groups of cotton fabric, imparting enhanced antibacterial properties along with flame-retardancy, hydrophobicity, and self-cleaning capabilities. The TD@Cl treated fabric, designated as COTD, demonstrated exceptional antibacterial efficacy, exhibiting over 99.99% efficacy against both S. aureus and E. coli , with rapid bactericidal action within 3 min of contact. Notably, the COTD-Cl fabric maintained its antibacterial performance even after 40 washing cycles. Flame-retardancy tests revealed a 43.4% reduction in total heat release (THR) compared to untreated cotton. The fabric exhibited superior hydrophobicity and self-cleaning properties. Its air permeability and water vapour permeability are also discussed. These results highlight the potential of this efficient method to produce durable, multifunctional cotton fabrics suitable for a wide range of practical usages, such like garments, decoration and furniture etc.
Jun Yao,Sijia Zheng,Xinlei Wu,Yingjie Guo,Yan Li,Yifang Mi,Zhihai Cao,Qinmin Cui
The development of textiles with durable antifouling and antibacterial properties is essential to inhibit many healthcare-associated infections and fulfill the increasing demand for public health. However, it is a challengeable task to build high-performance antibacterial surfaces on fabrics without compromise of their intrinsic serviceability in an eco-friendly way. Herein, we reported the fabrication of durable antibacterial cotton fabrics through a one-bath pad−dry−cure technology by using eco-friendly quaternized short perfluoroalkyl polymer/Ag nanocomposite particles (qf-polymer/Ag NCPs) as the finishing agents. Each fiber of the finished cotton fabrics was covered by a low surface energy thin qf-polymer/Ag composite film (CF), allowing the finished fabrics to keep the intrinsic serviceability of fabrics for a comfortable wearing feeling. The qf-polymer/Ag CF-coated cotton fabrics demonstrated a superior long-term broad-spectrum antibacterial ability against normal and multiple drug resistant bacteria. An antibacterial mechanism of the qf-polymer/Ag CF-coated cotton fabrics based on the synergism of qf-polymers, Ag NPs, and textile structure was proposed. This work provides an inspiring insight into the design and fabrication of advanced durable antibacterial surfaces on fabrics.
危险品化学品经营许可证（带存储）