Application of Silver-Loaded Halloysite Nanotubes in Flame Retardant and Smoke-Suppressive Coating for Polyester-Cotton Fabric,ACS Applied Materials & Interfaces

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Application of Silver-Loaded Halloysite Nanotubes in Flame Retardant and Smoke-Suppressive Coating for Polyester-Cotton Fabric
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-05-07 , DOI: 10.1021/acsami.3c02139
Liangyuan Qi ₁ , Wei Cai ₁ , Weijie Zhang ₁ , Bangyu Wang ₁ , Wensheng Li ₁ , Xiaohui Jin ₁ , Liang Chen ₁ , Bin Yu ₁ , Yuan Hu ₁ , Weiyi Xing ₁

Affiliation

Despite the wide applications in clothing, furniture, and transportation, the well-known “scaffolding effect” in polyester-cotton fabric has caused significant fire hazards compared to sole polyester or cotton fabrics. Therefore, it is of practical significance to endow polyester-cotton fabric with excellent fire safety. In this work, an organic–inorganic composite coating comprising nitrogen–phosphorus–silicon-containing flame retardant and silver nanoparticle-loaded halloysite nanotubes (Ag@HNTs) was designed and prepared to improve the fire safety of polyester-cotton fabrics. Microscale combustion colorimeter results indicated that the peak heat release rate of the modified polyester-cotton fabric with such a composite coating was reduced by 47%. Meanwhile, it could self-extinguish in 9 s after being ignited, and the limiting oxygen index was up to 25%, indicating excellent fire safety. In addition, the total smoke release of the coated polyester-cotton fabric was reduced by 21%, illustrating that the coating of Ag@HNTs could eliminate the smoke generated. The treated fabric also exhibited superior water resistance. Flame retardant mechanisms were well investigated using thermogravimetric analysis–infrared spectrometry analysis and chemiluminescence by studying the gaseous degradation products and hydroxyl radical in the gas phase. This work provides an effective approach to fabricating high-performance flame retardant and smoke-suppressive coatings for textiles.

中文翻译：

载银埃洛石纳米管在涤棉织物阻燃抑烟涂层中的应用

尽管在服装、家具和交通工具中有着广泛的应用，但与单一的涤棉织物相比，涤棉织物众所周知的“脚手架效应”导致了严重的火灾隐患。因此，赋予涤棉织物优异的防火性能具有现实意义。在这项工作中，设计并制备了一种由含氮-磷-硅阻燃剂和负载银纳米颗粒的埃洛石纳米管（Ag@HNTs）组成的有机-无机复合涂层，以提高涤棉织物的防火安全性。显微燃烧比色计结果表明，复合涂层改性涤棉织物的热释放峰值降低了47%。同时，点燃后可在9秒内自行熄灭，极限氧指数高达25%，防火性能优良。此外，涂层涤棉织物的总烟雾释放量减少了 21%，说明 Ag@HNTs 涂层可以消除产生的烟雾。经处理的织物还表现出优异的耐水性。通过研究气相中的气态降解产物和羟基自由基，使用热重分析-红外光谱分析和化学发光很好地研究了阻燃机理。这项工作为制造用于纺织品的高性能阻燃和抑烟涂层提供了一种有效的方法。说明 Ag@HNTs 的涂层可以消除产生的烟雾。经处理的织物还表现出优异的耐水性。通过研究气相中的气态降解产物和羟基自由基，使用热重分析-红外光谱分析和化学发光很好地研究了阻燃机理。这项工作为制造用于纺织品的高性能阻燃和抑烟涂层提供了一种有效的方法。说明 Ag@HNTs 的涂层可以消除产生的烟雾。经处理的织物还表现出优异的耐水性。通过研究气相中的气态降解产物和羟基自由基，使用热重分析-红外光谱分析和化学发光很好地研究了阻燃机理。这项工作为制造用于纺织品的高性能阻燃和抑烟涂层提供了一种有效的方法。

更新日期：2023-05-07

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