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首页> 外文期刊>Journal of natural fibers >Studies on the Synthesis and Application of N,N,N-Trimethyl Chitosan Chloride (TMCHT) on Cotton Fabric
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Studies on the Synthesis and Application of N,N,N-Trimethyl Chitosan Chloride (TMCHT) on Cotton Fabric

机译：N，N，N-三甲基壳聚糖氯化物（TMCHT）在棉织物上的合成及应用研究

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摘要

In this paper, synthesis of N,N,N-Trimethyl chitosan chloride (TMCHT) and its effect on the properties of cotton fabric is reported. TMCHT of varying degree of quaternization (DQ) namely 13.41, 22.03, and 50.92% were synthesized by reaction of chitosan (CHT) with methyl iodide in alkaline medium followed by ion exchange with sodium chloride. The quaternization at amino groups of CHT was confirmed by FTIR spectroscopy and the degree of quaternization was evaluated by conductometric titration against standard silver nitrate solution. TMCHT was applied onto cotton fabric by pad-dry cure method and its effect on various properties such as appearance, feel, chlorine retention in chlorine bleaching, absorbency, dyeing behavior, wrinkle recovery, soil release, and antimicrobial properties were investigated. The whiteness index, absorbency, dyeability toward direct and acid dyes at neutral dye bath pH, soil release, and resistance towards microbial attack of the treated fabrics were found to be progressively improved with rise in DQ of TMCHT.
机译：本文报道了N，N，N-三甲基壳聚糖氯化物（TMCHT）的合成及其对棉织物性能的影响。通过在碱性介质中将壳聚糖（CHT）与甲基碘反应，然后与氯化钠进行离子交换，合成了季铵化度（DQ）为13.41、22.03和50.92％的TMCHT。通过FTIR光谱确认了CHT氨基处的季铵化，并通过对标准硝酸银溶液进行电导滴定评估了季铵化程度。通过棉干法将TMCHT应用于棉织物上，研究了其对外观，手感，氯漂白中氯的保留，吸收性，染色行为，皱纹恢复，去污和抗菌性能等各种性能的影响。随着TMCHT DQ的增加，白度指数，吸收性，在中性染浴pH值下对直接染料和酸性染料的可染性，去污性和对微生物侵袭的抵抗力逐渐得到改善。

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