Abstract

The polymer yarns are originally electrical insulators. Their structure does not provide valence electrons to conduct electrical current. The coating of carbon nanotubes (CNT) over the nylon yarn enables it to become a good conductor of heat and electricity. The objective of present study is to impart the electrical conductivity to the Nylon 6/Spandex yarn by coating the CNT. The physical properties of CNTs were studied by SEM analysis. The electrical properties of CNT coated yarns were investigated in relaxed and stretched state. The conductive yarns showed low resistance under high stretch load. Furthermore, the heating performance of the CNT coated yarns was analyzed by applying the different range of voltages at the surface of the yarns. The maximum temperature of about 280 °C was recorded when the applied voltages were 5 V for 60 min. Moreover, the durability of CNT coated yarns was observed against severe washing. The yarns showed good retention of the CNT even after severe washing, as proved by a very small loss in the electrical conductivity of the yarns.

摘要

聚合物纱线最初是电绝缘体。它们的结构不提供价电子来传导电流。尼龙纱线上的碳纳米管 (CNT) 涂层使其成为热和电的良导体。本研究的目的是通过涂覆碳纳米管来赋予尼龙 6/氨纶纱线导电性。通过SEM分析研究了CNT的物理性质。在松弛和拉伸状态下研究了碳纳米管涂层纱线的电性能。导电纱线在高拉伸载荷下表现出低电阻。此外，通过在纱线表面施加不同范围的电压来分析CNT涂层纱线的加热性能。当施加的电压为 5 V 60 分钟时，记录的最高温度约为 280 °C。此外，还观察到 CNT 涂层纱线对严重洗涤的耐久性。即使在严重洗涤后，纱线也显示出良好的 CNT 保留，这由纱线的导电性的非常小的损失证明。