Effect of liquid ammonia and protease on surface modification and shrink resistance of wool

IF 1.6 4区化学 Q4 CHEMISTRY, PHYSICAL

Surface and Interface Analysis Pub Date : 2023-10-22 DOI:10.1002/sia.7262

Xianqin Shang, Qiang Wang, Zhe Jiang, Haitao Ma

引用次数: 0

Abstract

In order to improve the surface properties of wool fiber, the wool fabric was treated with liquid ammonia and protease treatments successively. The results showed that liquid ammonia pretreatment could cause certain damage to the surface structure and disulfide bonds in keratin, which enhanced the action of protease on wool surface and catalytic hydrolysis of the cuticle. The joint treatment of liquid ammonia and protease changed the secondary structure of wool. The content of α‐helix and random crimp increased, while the content of β‐sheet decreased. In addition, the shrink resistance of wool fabric was significantly improved without obvious losses in tensile strength and elongation. The combination of liquid ammonia and protease treatments provides a potential new method for the surface modification and eco‐friendly shrink‐resistant finishing of wool and further widens the application of liquid ammonia in textile industry.

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液氨和蛋白酶对羊毛表面改性及抗收缩性能的影响

为了改善羊毛纤维的表面性能，对羊毛织物先后进行了液氨和蛋白酶处理。结果表明，液氨预处理对羊毛表面结构和角蛋白二硫键有一定的破坏作用，增强了蛋白酶在羊毛表面的作用和对角质层的催化水解作用。液氨和蛋白酶的联合处理改变了羊毛的二级结构。α‐螺旋和随机卷曲的含量增加，而β‐薄片的含量减少。同时，在抗拉强度和伸长率没有明显损失的情况下，羊毛织物的抗缩性能得到了显著提高。液氨与蛋白酶联合处理为羊毛表面改性和环保抗缩整理提供了一种潜在的新方法，进一步扩大了液氨在纺织工业中的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surface and Interface Analysis 化学-物理化学

CiteScore

3.30

自引率

5.90%

发文量

130

审稿时长

4.4 months

期刊介绍： Surface and Interface Analysis is devoted to the publication of papers dealing with the development and application of techniques for the characterization of surfaces, interfaces and thin films. Papers dealing with standardization and quantification are particularly welcome, and also those which deal with the application of these techniques to industrial problems. Papers dealing with the purely theoretical aspects of the technique will also be considered. Review articles will be published; prior consultation with one of the Editors is advised in these cases. Papers must clearly be of scientific value in the field and will be submitted to two independent referees. Contributions must be in English and must not have been published elsewhere, and authors must agree not to communicate the same material for publication to any other journal. Authors are invited to submit their papers for publication to John Watts (UK only), Jose Sanz (Rest of Europe), John T. Grant (all non-European countries, except Japan) or R. Shimizu (Japan only).