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用于开发疏水性和水性抗污棉织物涂层的基于功能性硅烷的纳米杂化材料

Functional Silane-Based Nanohybrid Materials for the Development of Hydrophobic and Water-Based Stain Resistant Cotton Fabrics Coatings.

作者信息

Sfameni Silvia, Lawnick Tim, Rando Giulia, Visco Annamaria, Textor Torsten, Plutino Maria Rosaria

机构信息

Department of Engineering, University of Messina, Contrada di Dio, S. Agata, 98166 Messina, Italy.

Institute for the Study of Nanostructured Materials, ISMN-CNR, Palermo, c/o Department ChiBioFarAm, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.

出版信息

Nanomaterials (Basel). 2022 Sep 28;12(19):3404. doi: 10.3390/nano12193404.

DOI:10.3390/nano12193404
PMID:36234532
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9565586/
Abstract

The textile-finishing industry, is one of the main sources of persistent organic pollutants in water; in this regard, it is necessary to develop and employ new sustainable approaches for fabric finishing and treatment. This research study shows the development of an efficient and eco-friendly procedure to form highly hydrophobic surfaces on cotton fabrics using different modified silica sols. In particular, the formation of highly hydrophobic surfaces on cotton fabrics was studied by using a two-step treatment procedure, i.e., first applying a hybrid silica sol obtained by hydrolysis and subsequent condensation of (3-Glycidyloxypropyl)trimethoxy silane with different alkyl(trialkoxy)silane under acid conditions, and then applying hydrolyzed hexadecyltrimethoxysilane on the treated fabrics to further improve the fabrics' hydrophobicity. The treated cotton fabrics showed excellent water repellency with a water contact angle above 150° under optimum treatment conditions. The cooperative action of rough surface structure due to the silica sol nanoparticles and the low surface energy caused by long-chain alkyl(trialkoxy)silane in the nanocomposite coating, combined with the expected roughness on microscale due to the fabrics and fiber structure, provided the treated cotton fabrics with excellent, almost super, hydrophobicity and water-based stain resistance in an eco-sustainable way.

摘要

纺织后整理行业是水中持久性有机污染物的主要来源之一;因此,有必要开发并采用新的可持续方法进行织物整理和处理。本研究展示了一种高效且环保的工艺,该工艺使用不同的改性硅溶胶在棉织物上形成高疏水表面。具体而言,通过两步处理工艺研究了棉织物上高疏水表面的形成,即首先在酸性条件下应用由(3-缩水甘油氧基丙基)三甲氧基硅烷与不同的烷基(三烷氧基)硅烷水解并随后缩合得到的混合硅溶胶,然后将水解的十六烷基三甲氧基硅烷应用于处理过的织物上,以进一步提高织物的疏水性。在最佳处理条件下,处理后的棉织物表现出优异的拒水性,水接触角超过150°。硅溶胶纳米颗粒导致的粗糙表面结构与纳米复合涂层中长链烷基(三烷氧基)硅烷引起的低表面能的协同作用,再加上织物和纤维结构在微观尺度上预期的粗糙度,以生态可持续的方式为处理后的棉织物提供了优异的、近乎超疏水的性能以及耐水性污渍性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6764/9565586/fdff7462b113/nanomaterials-12-03404-g015.jpg
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