Bio-based phytic acid-induced polypyrrole/silver nanowires coating towards multifunctional nylon/cotton blend fabrics
writer：Jian Liu
keywords：Nylon/cotton blend fabrics，Flame retardancy，EMI shielding，Thermal management，Antibacterial property
source：期刊
Issue time：2023年
The functional flexible wearable textiles have a broad application prospect in many areas. However, considering the physical and chemical effects among various additives, it is still a big challenge to prepare wearable fabrics with a balance between different properties. Herein, an
eco-friendly and multifunctional nylon/cotton blend fabric was constructed by phytic acid (PA)-induced polymerization of polypyrrole on the surface, followed by dip coating with silver nanowires (AgNWs). A high electrical conductivity of the treated blend fabrics (61 S·m?1) was obtained contributed to the excellent EMI shielding performance of nylon/cotton blend fabric (X-band ～ 38.8 dB). Meanwhile, the coating maintained the surface temperature of the fabric within a suitable range, resulting in achieving the efficient thermal management. Furthermore, the treated nylon/cotton blends achieved a remarkable reduction (83.3 % and 81.7 %) of peak heat release rate and total smoke production compared to that of the control nylon/cotton blends. In
addition, the considerable antibacterial property against E. coli and S. aureus was also realized. The successful application of this simple and eco-friendly method offered the possibility of preparing safer and more versatile wearable smart textiles.
功能性柔性可穿戴紡織品在許多領域具有廣闊的應用前景。然而，考慮到各種添加劑之間的物理和化學作用，制備不同性能之間平衡的可穿戴織物仍然是一個巨大的挑戰。本文以聚吡咯為原料，在聚丙烯酸（PA）表面引發聚合，然后用銀納米線（AgNWs）浸涂，構建了一種環保、多功能的尼龍/棉混紡織物。處理后的混紡織物獲得了高電導率（61 S·m?1），這有助于尼龍/棉混紡織物具有優異的EMI屏蔽性能（X波段～38.8 dB）。同時，涂層將織物的表面溫度保持在合適的范圍內，從而實現了有效的熱管理。此外，經處理的尼龍/棉共混物的峰值放熱率和總煙霧產生量分別比未經處理的降低了83.3%和81.7%