In recently years, high-performance wearable strain sensors have attracted great attention in academic and industrial. Herein, a conductive polymer composite of electrospun thermoplastic polyurethane (TPU) fibrous film matrix-embedded carbon black (CB) particles with adjustable scaffold network was fabricated for high-sensitive strain sensor. This work indicated the influence of stereoscopic scaffold network structure built under various rotating speeds of collection device in electrospinning process on the electrical response of TPU/CB strain sensor. This structure makes the sensor exhibit combined characters of high sensitivity under stretching strain (gauge factor of 8962.7 at 155% strain), fast response time (60 ms), outstanding stability and durability (> 10,000 cycles) and a widely workable stretching range (0–160%). This high-performance, wearable, flexible strain sensor has a broad vision of application such as intelligent terminals, electrical skins, voice measurement and human motion monitoring. Moreover, a theoretical approach was used to analyze mechanical property and a model based on tunneling theory was modified to describe the relative change of resistance upon the applied strain. Meanwhile, two equations based from this model were first proposed and offered an effective but simple approach to analyze the change of number of conductive paths and distance of adjacent conductive particles.

近年来，高性能可穿戴应变传感器引起了学术界和工业界的极大关注。在此，制备了具有可调节支架网络的电纺热塑性聚氨酯 (TPU) 纤维膜基质嵌入炭黑 (CB) 颗粒的导电聚合物复合材料，用于高灵敏度应变传感器。这项工作表明了在静电纺丝过程中收集装置不同转速下构建的立体支架网络结构对TPU/CB应变传感器电响应的影响。这种结构使传感器在拉伸应变下表现出高灵敏度（155%应变时的应变系数为8962.7）、快速响应时间（60 ms）、出色的稳定性和耐用性（> 10,000次循环）和广泛适用的拉伸范围（0 –160%）。这种高性能，可穿戴、柔性应变传感器在智能终端、电子皮肤、语音测量和人体运动监测等应用领域具有广阔的应用前景。此外，采用理论方法分析机械性能，并对基于隧道理论的模型进行修改，以描述电阻在施加应变时的相对变化。同时，首次提出了基于该模型的两个方程，并提供了一种有效但简单的方法来分析导电路径数量和相邻导电粒子距离的变化。采用理论方法分析机械性能，并对基于隧道理论的模型进行修改，以描述电阻在施加应变时的相对变化。同时，首次提出了基于该模型的两个方程，并提供了一种有效但简单的方法来分析导电路径数量和相邻导电粒子距离的变化。采用理论方法分析机械性能，并对基于隧道理论的模型进行修改，以描述电阻在施加应变时的相对变化。同时，首次提出了基于该模型的两个方程，并提供了一种有效但简单的方法来分析导电路径数量和相邻导电粒子距离的变化。