Tactile sensors with high flexibility have attracted great interest because of their huge potential in various applications including smart robots, smart prostheses, human-machine interfaces, and biological monitoring electronic devices. However, it remains a critical challenge to develop tactile sensors with both high sensitivity and flexibility. In this work, a flexible 8 8 array pressure sensors with GNPs/MWCNT filled conductive composite material on PDMS substrates was proposed using direct-write printing. The printing technology based on the Weissenberg effect had the advantages of rapid supply of fluid and avoiding needle clogging in the printing process, which was suitable for large-area manufacturing of sensor sensitive units. The sensitivity of PDMS-based flexible array pressure sensors in the pressure range of 0–25 kPa and 25–75 kPa reached ∼5.09 MPa⁻¹ and ∼0.0209 kPa⁻¹, respectively. Response/recovery time reached ∼150 ms and ∼200 ms, respectively. When 1000 cycles were performed in the 0–75 kPa pressure range, the PDMS substrate flexible array pressure sensor had high stability and repeatability. These superior properties are indicative of their great potential in applications such as intelligent robotics, artificial palpation, prosthetics, and wearable devices.

具有高柔性的触觉传感器因其在包括智能机器人、智能假肢、人机界面和生物监测电子设备在内的各种应用中的巨大潜力而​​引起了人们的极大兴趣。然而，开发具有高灵敏度和灵活性的触觉传感器仍然是一个关键的挑战。在这项工作中，提出了一种使用直写印刷在 PDMS 基板上具有 GNP/MWCNT 填充导电复合材料的柔性 8×8 阵列压力传感器。基于Weissenberg效应的打印技术具有流体供给快、打印过程中避免针头堵塞等优点，适用于传感器敏感单元的大面积制造。^-1和 ~0.0209 kPa ^-1，分别。响应/恢复时间分别达到~150 ms 和~200 ms。在 0-75 kPa 压力范围内进行 1000 次循环时，PDMS 基板柔性阵列压力传感器具有较高的稳定性和可重复性。这些卓越的特性表明它们在智能机器人、人工触诊、假肢和可穿戴设备等应用中具有巨大潜力。