飞行时间二次离子质谱法(ToF-SIMS)分析羊绒纤维的漂白及阳离子烷基蛋白柔软剂的应用

IF 1.5 4区工程技术 Q2 MATERIALS SCIENCE, TEXTILES

Journal of the Textile Institute Pub Date : 1999-01-01 DOI:10.1080/00405009908659479

S. Volooj, C. Carr, R. Mitchell, J. Vickerman

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引用次数: 3

摘要

ToF-SIMS的研究表明，通过硫酯键结合在羊绒纤维表面的18-甲基二糖酸(18-MEA)可以通过过氧化氢漂白去除。18-MEA的丢失水平与氧化发作的严重程度有关。在漂白过程中，润湿剂壬基酚聚氧酸酯(NPEO-8)在纤维上的吸附发生，观察到更疏水的短聚乙氧聚合物物种优先被吸附。蛋白质柔软剂的表征显示了复杂的ToF-SIMS光谱，表面分析数据与湿化学体分析一致。对“软化”羊绒的表面分析表明，阳离子烷基蛋白柔软剂含量高，疏水性较强的柔软剂成分富集。提出了阳离子蛋白软化剂在阴离子纤维表面的分布模型。

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Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) Analysis of the Bleaching of Cashmere Fibres, and the Application of Cationic Alkyl Protein Softeners

ToF-SIMS studies have demonstrated that the 18-methyleicosanoic acid (18-MEA) bound to the cashmere fibre surface via a thioester linkage, is removed by hydrogen peroxide bleaching. The level of 18-MEA loss was related to the severity of oxidative attack. The adsorption of a wetting agent, nonyl phenol ethoxylate (NPEO-8), onto the fibre occurs during bleaching, with preferential adsorption of the more hydrophobic, short ethoxymer species observed. Characterization of a protein softener indicated a complex ToF-SIMS spectrum, with the surface analysis data agreeing with the wet chemical bulk analysis. Surface analysis of the ‘softened’ cashmere indicated that the cationic alkyl protein softeners are highly substantive and that enrichment of the more hydrophobic softener components has occurred. A distribution model for the cationic protein softener over the anionic fibre surface has been proposed.

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来源期刊

Journal of the Textile Institute 工程技术-材料科学：纺织

CiteScore

4.20

自引率

5.90%

发文量

149

审稿时长

1.0 months

期刊介绍： The Journal of The Textile Institute welcomes papers concerning research and innovation, reflecting the professional interests of the Textile Institute in science, engineering, economics, management and design related to the textile industry and the use of fibres in consumer and engineering applications. Papers may encompass anything in the range of textile activities, from fibre production through textile processes and machines, to the design, marketing and use of products. Papers may also report fundamental theoretical or experimental investigations, including materials science topics in nanotechnology and smart materials, practical or commercial industrial studies and may relate to technical, economic, aesthetic, social or historical aspects of textiles and the textile industry. All published research articles in The Journal of The Textile Institute have undergone rigorous peer review, based on initial editor screening and anonymized refereeing by two expert referees.