Wearable, washable piezoresistive pressure sensor based on polyurethane sponge coated with composite CNT/CB/TPU

IF 10 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Today Physics Pub Date : 2025-02-20 DOI:10.1016/j.mtphys.2025.101681

Yan Wang , Wenbo Luo , Yading Wen , Jiafeng Zhao , Chang Chen , Zhuo Chen , Xiao-Sheng Zhang

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引用次数: 0

Abstract

Flexible pressure sensors are widely used in human health detection and human-machine interface interaction. In this paper, a 3D porous flexible pressure sensor based on carbon nanotubes (CNT)/carbon black (CB)/thermoplastic polyurethane (TPU)/polyurethane (PU) sponge is studied. This sensor exhibits good sensitivity, stability and washability. The sensing layer utilizes a conductive network formed by the synergistic effect of CNT and CB, providing excellent performance for the sensor. TPU functions as an adhesive, ensuring the bonding of the conductive material and providing washability to the sensor. Additionally, CB particles enhance the sensitivity of the sensor at low pressure range. The sensor demonstrates a response time of 119 ms, a recovery time of 59 ms, and maintains non-attenuating durability for more than 1000 cycles. This multi-functional pressure sensor can provide a new platform for the designing and developing wearable health monitoring devices, as well as an efficient human-machine interface.

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基于聚氨酯海绵涂覆复合CNT/CB/TPU的可穿戴、可水洗压阻式压力传感器

柔性压力传感器广泛应用于人体健康检测和人机界面交互。本文研究了一种基于碳纳米管(CNT)/炭黑(CB)/热塑性聚氨酯(TPU)/聚氨酯（PU）海绵的三维多孔柔性压力传感器。该传感器具有良好的灵敏度、稳定性和耐水洗性。传感层利用碳纳米管和碳炭黑协同作用形成的导电网络，为传感器提供了优异的性能。TPU充当粘合剂，确保导电材料的粘合，并为传感器提供可水洗性。此外，CB颗粒在低压范围内增强了传感器的灵敏度。该传感器的响应时间为119毫秒，恢复时间为59毫秒，并保持超过1000次循环的非衰减耐久性。该多功能压力传感器可为可穿戴式健康监测设备的设计和开发提供新的平台，并提供高效的人机界面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Today Physics Materials Science-General Materials Science

CiteScore

14.00

自引率

7.80%

发文量

284

审稿时长

15 days

期刊介绍： Materials Today Physics is a multi-disciplinary journal focused on the physics of materials, encompassing both the physical properties and materials synthesis. Operating at the interface of physics and materials science, this journal covers one of the largest and most dynamic fields within physical science. The forefront research in materials physics is driving advancements in new materials, uncovering new physics, and fostering novel applications at an unprecedented pace.