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

作　　者：李梦楠 马传国[1,2,3] 武家昕 戴培邦[1] LI Mengnan;MA Chuanguo;WU Jiaxin;DAI Peibang(School of Materials Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,China;Guangxi Key Laboratory of Electronic Information Materials,Guilin University of Electronic Technology,Guilin 541004,China;Electronical Information Materials and Devices Engineering Research Center of Ministry of Education,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004 [2]桂林电子科技大学广西电子信息材料构效关系重点实验室,广西桂林541004 [3]桂林电子科技大学电子信息材料与器件教育部工程研究中心,广西桂林541004

出　　处：《桂林电子科技大学学报》2024年第3期221-228,共8页Journal of Guilin University of Electronic Technology

基　　金：广西科技计划(桂科AB21196038);广西电子信息材料构效关系重点实验室开放研究基金(201018-K)。

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(1~1000 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(1000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。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.

关 键 词：石墨烯 聚苯胺 微结构 柔性压力传感器 传感性能 

分 类 号：TB381[一般工业技术—材料科学与工程]