Abstract Twist-spun carbon nanotube (CNT) yarns are composed of numerous CNTs and their bundles with entangled and twisted structures. In this paper, we studied the mechanical properties of CNT yarns. The individual CNT, a component of yarn, is well known to have an extremely high mechanical strength. However, CNT yarns are very flexible and relatively free to transform their shapes, showing the potential for application in the design of wearable devices. Since CNT yarns have two opposing characteristics at the same time, a wide range of Young’s modulus can be achieved by simply changing the geometrical structure while using the same fabrication process. We also suggest that CNT yarns can be utilized as the base material for several applications that require different stresses in a structure, such as bioimplants or foldable devices.

中文翻译：

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不同直径碳纳米管纱线杨氏模量的较大变化

摘要 捻纺碳纳米管（CNT）纱线是由无数个碳纳米管及其具有缠结和扭曲结构的束组成。在本文中，我们研究了碳纳米管纱线的机械性能。众所周知，作为纱线组成部分的单个 CNT 具有极高的机械强度。然而，碳纳米管纱线非常灵活并且可以相对自由地改变其形状，显示出在可穿戴设备设计中的应用潜力。由于 CNT 纱线同时具有两种相反的特性，因此在使用相同的制造工艺的同时，只需改变几何结构就可以实现大范围的杨氏模量。我们还建议将 CNT 纱线用作需要结构中不同应力的多种应用的基础材料，例如生物植入物或可折叠设备。