This article introduce a novel, convenient and efficient finishing approach for the creation of quaternary ammonium groups (QAGs) into polyamide-6 (PA-6) macromolecules via polymerization of vinyl monomer is named methacryloyloxyethyl trimethyl ammonium chloride (MAETAC). The graft copolymerization reaction proceeds in the presence of nano-metal oxides TiO2, ZnO and its hybrid mixture. The finishing method of PA-6 fabrics was carried out by using pad-dry-cure technique in presence K2S2O8 as initiator. The reaction mechanism was suggested. The surface topography was studied using Scan Electron Microscope (SEM) and Energy dispersive X-Ray (EDX). Evidence the chemical bonding between poly (MAETAC) and amide groups as well as the ionic interaction between nanoparticles (NPs) and carboxylic end groups in the chemical structure of the PA-6 fabrics were confirmed by FT-IR. The antimicrobial activity of the finished fabrics were evaluated against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans. The achieved antimicrobial functions on the PA-6 fabrics are durable in repeated laundering processes. Even after laundering five times the PA-6 fabrics treated with QAs/Ti NPs could still provide 32%, 80.7%, 22.6%, and 60.5%, while PA fabrics treated with QAs/Zn or QAs/(Ti+Zn) showed excellent antimicrobial activity against Staphylococcus aureus, E. coli, P. aeruginosa, and C. albicans before laundering, respectively. Also, it has been found that, PA-6 fabrics finished with the suggested method even after five washing cycles, displayed excellent ultraviolet protection effectiveness. The results of mechanical properties showed that this finishing approach had not destructive effect on the physical properties of the fabrics.

中文翻译：

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纳米金属氧化物存在下聚季铵盐对聚酰胺6织物的功能整理

本文介绍了一种新颖、方便且高效的整理方法，用于通过乙烯基单体聚合将季铵基团 (QAG) 生成为聚酰胺 6 (PA-6) 大分子，命名为甲基丙烯酰氧基乙基三甲基氯化铵 (MAETAC)。接枝共聚反应在纳米金属氧化物 TiO2、ZnO 及其杂化混合物的存在下进行。PA-6织物的整理方法是在K2S2O8作为引发剂存在下采用轧干固化技术进行的。提出了反应机理。使用扫描电子显微镜 (SEM) 和能量色散 X 射线 (EDX) 研究表面形貌。FT-IR 证实了聚 (MAETAC) 和酰胺基团之间的化学键以及 PA-6 织物化学结构中纳米粒子 (NP) 和羧基端基之间的离子相互作用。成品织物对金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌和白色念珠菌的抗菌活性进行了评估。PA-6 织物实现的抗菌功能在反复洗涤过程中经久耐用。即使洗涤五次后，用 QAs/Ti NPs 处理的 PA-6 织物仍可提供 32%、80.7%、22.6% 和 60.5%，而用 QAs/Zn 或 QAs/(Ti+Zn) 处理的 PA 织物表现出优异分别在洗涤前对金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌和白色念珠菌的抗菌活性。另外还发现，即使经过 5 次洗涤循环后，采用建议方法整理的 PA-6 织物仍显示出出色的紫外线防护效果。力学性能的结果表明，这种整理方法对织物的物理性能没有破坏性影响。