Harsh Environment-Tolerant, High Performance Soft Pressure Sensors Enabled by Fiber-Segment Structure and Plasma Treatment,Small

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Harsh Environment-Tolerant, High Performance Soft Pressure Sensors Enabled by Fiber-Segment Structure and Plasma Treatment
Small ( IF 13.0 ) Pub Date : 2024-09-09 , DOI: 10.1002/smll.202403495
Junxue Gao _{1,

2} , Binzhe Zhao _{1,

3} , Xi Chen _{1,

3} , Mengxi Gu _{1,

3} , Wenli Zhang _{1,

2} , Lei Wang _{1,

3} , Lei Wei ₄ , Chunlei Yang _{1,

3} , Ming Chen _{1,

3}

Affiliation

As the demand for specialized and diversified pressure sensors continues to increase, excellent performance and multi-applicability have become necessary for pressure sensors. Currently, flexible pressure sensors are primarily utilized in fields such as health monitoring and human-computer interaction. However, numerous complex extreme environments in reality, including deep sea, corrosive conditions, extreme cold, and high temperatures, urgently require the services of flexible devices. Here, a piezoresistive flexible pressure sensor based on expanded polytetrafluoroethylene/functionalized carbon nanotubes (EPTFE/FCNT) is proposed. Benefiting from the unique fiber-segment architecture, chemical stability, and strong chemical binding force between EPTFE and FCNT, the fabricated sensor exhibits remarkable sensing capabilities and can be employed in multifarious extreme environments. It demonstrates a sensitivity of 862.28 kPa⁻¹, a response time of 6–7 ms, and a detection limit below 1 Pa. Furthermore, it possesses a pressure resolution of 0.0018% under 111 kPa and can withstand over 10,000 loading and unloading cycles under 1 MPa. Additionally, the EPTFE/FCNT sensor retains its outstanding pressure response and work efficiency in extreme conditions such as an ultra-low temperature of −80 °C, high temperature (200 °C), acidic and alkaline corrosion, and underwater. These notable attributes enormously broaden the sensors’ real-world application range.

中文翻译：

采用光纤段结构和等离子体处理的耐恶劣环境高性能软压力传感器

随着对专业化和多样化压力传感器的需求不断增加，压力传感器需要出色的性能和多种适用性。目前，柔性压力传感器主要应用于健康监测和人机交互等领域。然而，现实中许多复杂的极端环境，包括深海、腐蚀条件、极寒和高温，都迫切需要柔性设备的服务。本文提出了一种基于发泡聚四氟乙烯/功能化碳纳米管（EPTFE/FCNT）的压阻式柔性压力传感器。得益于独特的纤维段结构、化学稳定性以及 EPTFE 和 FCNT 之间强大的化学结合力，该传感器表现出卓越的传感能力，可用于各种极端环境。它显示出 862.28 ^kPa-1 的灵敏度，响应时间为 6-7 ms，检测限低于 1 Pa。此外，它在 111 kPa 下具有 0.0018% 的压力分辨率，并且可以承受 10,000 次 MPa 下的加载和卸载循环。此外，EPTFE/FCNT 传感器在 -80 °C 的超低温、高温（200 °C）、酸性和碱性腐蚀以及水下等极端条件下仍能保持出色的压力响应和工作效率。这些显著特性极大地拓宽了传感器的实际应用范围。

更新日期：2024-09-09

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