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首页> 外文期刊>The Journal of the Textile Institute >Preparation of a hydrophobic recycled jute-based nonwoven using a titanium dioxide/stearic acid coating
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Preparation of a hydrophobic recycled jute-based nonwoven using a titanium dioxide/stearic acid coating

机译：使用二氧化钛/硬脂酸涂层制备疏水性再生黄麻基无纺布

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摘要

This work aims at developing a hydrophobic treatment for jute fiber-based nonwovens. Three solutions of titanium dioxide (TiO2) nanoparticles were prepared through a sol-gel method by varying the molar ratio of the various constituents. The nonwoven was pretreated with these solutions before being impregnated with different concentrations of stearic acid. The TiO2 nanoparticles synthesized are amorphous; their size varies with the concentration of ethanol used as a solvent in the sol-gel method. The nanoparticle coating produced on the jute fibers is uniform. The nonwoven wettability was evaluated by measuring its water contact angle and retention time; the nonwoven became hydrophobic at the lowest fatty acid concentration tested. An increase in the stability of the hydrophobicity was observed when the TiO2 nanoparticle pretreatment was used compared to the application of the stearic acid treatment only. No detrimental effect of the hydrophobic treatment on the nonwoven mechanical performance and thermal stability was observed. These results demonstrate the potential of the TiO2 nanoparticle/stearic acid treatment as a fast method to provide a stable hydrophobicity to recycled jute-based nonwovens.
机译：这项工作旨在为黄麻纤维基非织造布开发疏水处理。通过改变各种成分的摩尔比，通过溶胶-凝胶法制备了二氧化钛（TiO2）纳米颗粒的三种溶液。在用不同浓度的硬脂酸浸渍之前，用这些溶液对非织造布进行预处理。合成的TiO2纳米颗粒是无定形的。它们的大小随溶胶-凝胶法中用作溶剂的乙醇浓度而变化。在黄麻纤维上产生的纳米颗粒涂层是均匀的。非织造布的润湿性通过测量其水接触角和停留时间来评估；非织造布在最低的脂肪酸测试浓度下变成疏水性的。与仅使用硬脂酸处理相比，当使用TiO2纳米粒子预处理时，观察到疏水性的稳定性增加。没有观察到疏水处理对非织造机械性能和热稳定性的有害影响。这些结果证明了TiO 2纳米颗粒/硬脂酸处理作为为回收的黄麻基非织造布提供稳定的疏水性的快速方法的潜力。

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