Splash-Resistant and Light-Weight Silk-Sheathed Wires for Textile Electronics
Splash-Resistant and Light-Weight Silk-Sheathed Wires for Textile Electronics
复制标题
DOI：
10.1021/acs.nanolett.8b03085
复制
发表时间：
2018-11-01
期刊：
影响因子：
10.8
通讯作者：
Zhang, Yingying
中科院分区：
文献类型：
--
作者：
Yin, Zhe;Jian, Muqiang;Zhang, Yingying
蚕丝具有优异的机械性能和生物相容性。几千年来，它一直被用来制造传统纺织品，并且可以大规模生产。丝绸材料在现代纺织电子产品中具有潜在的吸引力。然而，蚕丝不导电，因此限制了其在电子领域的应用。此外，再生丝通常是刚性和脆性的，这阻碍了后处理。在这里，我们报告的导电丝线的制造，其中碳纳米管（CNT）纱线包裹蓬松和灵活的丝素膜。通过静电纺丝制备丝素膜，然后原位缠绕在旋转的CNT纱线上。所获得的丝护套CNT（CNT@Silk）线具有绝缘护套，其保护身体免受电击。此外，所制造的线表现出高电导率（3.1 × 10（4）S/m）、良好的机械强度（16 cN/tex）、优异的柔性和高耐久性。更重要的是，该丝具有极低的密度（2.0-7.8 X 10（4）g/m3），比传统金属丝（例如Cu）的密度低2个数量级。此外，该导线具有良好的耐湿性，并且简单的后处理可以使导线具有抗飞溅性，从而扩大其应用范围。在这些特性的基础上，我们展示了轻质CNT@Silk线在智能服装中的使用，包括电致变色和近场通信。
Silk has outstanding mechanical properties and biocompatibility. It has been used to fabricate traditional textiles for thousands of years and can be produced in large scale. Silk materials are potentially attractive in modern textile electronics. However, silk is not electrically conductive, thus limiting its applications in electronics. Moreover, regenerated silk is generally rigid and brittle, which hinder post processing. Here we report the fabrication of conductive silk wire in which carbon nanotube (CNT) yarns are wrapped with fluffy and flexible silk nanofiber films. The silk nanofiber film was prepared by electrospinning and then wrapped around a rotating CNT yarn in situ. The obtained silk-sheathed CNT (CNT@Silk) wire has an insulating sheath, which protects the body against electrical shock. In addition, the fabricated wires exhibit a high electrical conductivity (3.1 X 10(4) S/m), good mechanical strength (16 cN/tex), excellent flexibility, and high durability. More importantly, the wires have an extremely low density (2.0-7.8 X 10(4) g/m(3)), which is 2 orders of magnitude lower than that of the traditional metal wire (for example, Cu). Moreover, the wires display a good resistance to humidity, and a simple post treatment can make the wires splash-resistant, thereby expanding its applications. On the basis of these features, we demonstrate the use of the lightweight CNT@Silk wires in smart clothes, including electrochromism and near-field communication.