Flexible strain sensors have received a lot of attention for their various applications, such as electronic skins, healthcare devices, and human-machine interactions. In many studies of manufacturing flexible strain sensors using carbon nanotubes (CNTs), various solvents are used to disperse CNTs. However, most studies lack explanation of the rationale for using specific solvent, which is mainly used to disperse CNTs and make CNT solution. There are studies dealing with the degree of dispersion in specific solvent of CNTs, but these studies lack information on solvents in the sensor manufacturing process. Therefore, researchers have difficulty in determining which solvent to use for CNT dispersion in their process because solvent selection varies depending on the sensor manufacturing method. Thus, the dispersion stability of CNT solutions with several solvents and the characteristics of CNT sheets made from each CNT solution were quantitatively compared. Then, the solvent suitable for an acrylic mold as well as having high dispersion stability was selected. Moreover, the flexible CNT strain sensor is developed by transferring CNTs to a flexible substrate. This sensor can be stretched up to 150% (linearity R=0.998), and the gauge factor was 26.7. It is expected to be used in various research of wearable sensors or human motion monitoring using CNT dispersion.

柔性应变传感器因其各种应用而受到广泛关注，例如电子皮肤、医疗保健设备和人机交互。在使用碳纳米管 (CNT) 制造柔性应变传感器的许多研究中，各种溶剂用于分散 CNT。然而，大多数研究缺乏对使用特定溶剂的基本原理的解释，该溶剂主要用于分散碳纳米管和制备碳纳米管溶液。有研究涉及碳纳米管在特定溶剂中的分散程度，但这些研究缺乏关于传感器制造过程中溶剂的信息。因此，研究人员难以确定在其工艺中使用哪种溶剂来分散 CNT，因为溶剂选择因传感器制造方法而异。因此，定量比较了几种溶剂对CNT溶液的分散稳定性以及由每种CNT溶液制成的CNT片材的特性。然后，选择适用于丙烯酸模具并且具有高分散稳定性的溶剂。此外，柔性碳纳米管应变传感器是通过将碳纳米管转移到柔性基板上而开发的。该传感器可拉伸至 150%（线性 R=0.998），量规系数为 26.7。预计将用于可穿戴传感器的各种研究或使用 CNT 分散的人体运动监测。柔性 CNT 应变传感器是通过将 CNT 转移到柔性基板上而开发的。该传感器可拉伸至 150%（线性 R=0.998），量规系数为 26.7。预计将用于可穿戴传感器的各种研究或使用 CNT 分散的人体运动监测。柔性 CNT 应变传感器是通过将 CNT 转移到柔性基板上而开发的。该传感器可拉伸至 150%（线性 R=0.998），量规系数为 26.7。预计将用于可穿戴传感器的各种研究或使用 CNT 分散的人体运动监测。