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李梦楠, 马传国, 武家昕, 等. 基于热压转印织布微结构制备高性能电纺TPU纤维膜压阻传感器[J]. 桂林电子科技大学学报, 2024, 44(3): 221-228. DOI: 10.16725/j.1673-808X.2022289
引用本文: 李梦楠, 马传国, 武家昕, 等. 基于热压转印织布微结构制备高性能电纺TPU纤维膜压阻传感器[J]. 桂林电子科技大学学报, 2024, 44(3): 221-228. DOI: 10.16725/j.1673-808X.2022289
LI Mengnan, MA Chuanguo, WU Jiaxin, et al. Preparation of high performance electrospun TPU fiber films piezoresistive sensor with a fabric microstructure by hot-press imprint method[J]. Journal of Guilin University of Electronic Technology, 2024, 44(3): 221-228. DOI: 10.16725/j.1673-808X.2022289
Citation: LI Mengnan, MA Chuanguo, WU Jiaxin, et al. Preparation of high performance electrospun TPU fiber films piezoresistive sensor with a fabric microstructure by hot-press imprint method[J]. Journal of Guilin University of Electronic Technology, 2024, 44(3): 221-228. DOI: 10.16725/j.1673-808X.2022289

基于热压转印织布微结构制备高性能电纺TPU纤维膜压阻传感器

Preparation of high performance electrospun TPU fiber films piezoresistive sensor with a fabric microstructure by hot-press imprint method

  • 摘要: 为了提升柔性应变传感器的传感响应及稳定性,提出了一种热压转印策略,即分别将石墨烯(Gr)、聚苯胺(PANI)及Gr协同PANI负载于电纺热塑性聚氨酯(TPU)纤维膜,然后采用热压转印技术将一种商用织布的表面微结构转印至电纺TPU纤维膜表面,最后将其组装成一系列具有表面和内部双重微结构的柔性压阻传感器。通过系统研究填料种类、热压时间对器件性能的影响,获得了传感性能优异的Gr/PANI-TPU(MGPT)传感器,MGPT传感器相对其他2种纤维膜传感器,具有较宽的响应速率范围(1 ~1 000 mm·min−1)、较高的灵敏度(0 ~ 6 kPa,灵敏度高达0.143 kPa−1)。该传感器还具有较快的响应时间(153 ms)和恢复时间(106 ms),以及优异的耐久性(1 000次循环加载-卸载),且在人体应用中表现出良好的动作监测能力。

     

    Abstract: To enhance the device-performance and stability of flexible strain sensor, the graphene (Gr), polyaniline (PANI) and Gr/PANI were loaded on the electrospun thermoplastic polyurethane (TPU) fiber film, respectively. Subsequently, the surface microstructure of a commercial fabric was transferred to the surface of the electrospun TPU fiber film by hot-press imprint method. And a serial of flexible piezoresistive sensors with surface and internal microstructures were assembled. After systematically studying the effects of filler types and hot pressing time on the sensor performance, the Gr/PANI-TPU (MGPT) sensor with excellent sensing performance was obtained. Compared to the other sensors, the MGPT sensor has wide response rate range (1-1000 mm·min−1) and high sensitivity of 0.143 kpa−1 under pressure range of 0-6 kPa. It also has fast response time (153 ms) and recovery time (106 ms) and excellent durability (1000 cycles of loading-unloading), showing good motion monitoring ability in human applications.

     

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