Chemical and water protective surface on cotton fabric by pad-knife-pad coating of WPU-PDMS-TMS
Chemical and water protective surface on cotton fabric by pad-knife-pad coating of WPU-PDMS-TMS
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DOI：
10.1007/s10570-016-1028-5
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发表时间：
2016-10-01
期刊：
影响因子：
5.7
通讯作者：
Wang, Xin
中科院分区：
文献类型：
--
作者：
Moiz, Arsheen;Vijayan, Arun;Wang, Xin
纺织品的表面功能化对于开发防护服，保护穿着者免受液体、化学和生物污染的潜在危害至关重要。本研究旨在通过水性聚氨酯（WPU）、聚二甲基硅氧烷（PDMS）和三甲基二氧化硅（TMS）的垫-刀-垫涂层，探索棉织物的化学保护表面和水保护表面。利用衰减全反射傅里叶变换红外光谱对涂层棉织物的化学结构进行了表征。通过水接触角、拒水性、静水压力、拒油性和拒水性等指标分析了涂层棉织物的表面润湿性和液体防护性能。结果表明，WPU与PDMS-TMS发生共聚反应，在棉织物表面形成超疏水、拒油、机械强度高的膜。研究发现，WPU-PDMS-TMS涂层使棉织物具有较高的耐水、耐油和耐水性。这种表面功能化技术可以进一步应用于开发具有耐化学、防水和自清洁性能的防护服。
Surface functionalization of textiles is crucial in developing protective clothing that protects wearers from potential hazards of liquid, chemical and biological contamination. This study aims to explore chemical and water protective surface on cotton fabric by pad-knife-pad coating of waterborne polyurethane (WPU), polydimethylsiloxane (PDMS) and trimethylated silica (TMS). The chemical structure of the coated cotton fabrics was characterized by attenuated total reflectance Fourier transform infrared spectroscopy. Surface wettability and liquid protective properties of the coated cotton fabrics were analyzed by water contact angle, water repellency, hydrostatic pressure, and oil and aqueous liquid repellency. It was revealed that WPU and PDMS-TMS formed copolymerization reactions, resulting in ultrahydrophobic, oil repellent and mechanically strong membrane on the surface of cotton fabric. It has been found that the coating of WPU-PDMS-TMS makes cotton fabric highly resistant to water, oil and aqueous liquids. This surface functionalization technology can be further applied in developing protective clothing with chemical and water resistant and self-cleaning properties.