Fang Feiyu, Wang Han, Wang Huaquan, Gu Xiaofei, Zeng Jun, Wang Zixu, Chen Xindu, Chen Xin, Chen Meiyun
State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Ji Hua Laboratory (Advanced Manufacturing Science and Technology GuangDong Laboratory), Foshan 528200, China.
Micromachines (Basel). 2021 Mar 1;12(3):252. doi: 10.3390/mi12030252.
In this work, a novel flexible electrically resistive-type MXene/Thermoplastic polyurethanes(TPU) based strain sensors was developed by a composite process of electrospinning (ES) and electrostatic spray deposition (ESD). Compared with other deposition processes, the sensing layer prepared by ESD has better adhesion to the ES TPU nanofiber membrane and is not easy to crack during the stretching process, thereby greatly improving the working range of the strain sensor. Furthermore, we obtained the sandwich structure easily by ES on the surface of the sensing layer again. This will help make the stress distribution more uniform during the stretching process and further increase the strain sensing range. The ESD-ES strain sensors were attached on skin to monitor various human motions. The results demonstrate that our ESD-ES strain sensors have wide application prospects in smart wearable device.
在这项工作中，通过静电纺丝（ES）和静电喷雾沉积（ESD）的复合工艺，开发了一种新型的基于柔性电阻式MXene/热塑性聚氨酯（TPU）的应变传感器。与其他沉积工艺相比，通过ESD制备的传感层与ES TPU纳米纤维膜具有更好的附着力，并且在拉伸过程中不易开裂，从而大大提高了应变传感器的工作范围。此外，我们通过再次在传感层表面进行静电纺丝轻松获得了三明治结构。这将有助于在拉伸过程中使应力分布更加均匀，并进一步扩大应变传感范围。将ESD-ES应变传感器附着在皮肤上以监测各种人体运动。结果表明，我们的ESD-ES应变传感器在智能可穿戴设备中具有广阔的应用前景。
