Double-layer coated 3D porous flexible pressure sensor and its application

WU Kejue; FU Xinglan; HUANG Yuehua; LI Guanglin

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Double-layer coated 3D porous flexible pressure sensor and its application

Applications | 更新时间：2026-01-22

- Double-layer coated 3D porous flexible pressure sensor and its application
- Vol. 45, Issue 1, Pages: 179-184(2026)
- 作者机构：
  
  西南大学工程技术学院,重庆,400715
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212;TH823
- Published：2026
- 稿件说明：
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WU Kejue, FU Xinglan, HUANG Yuehua, et al. Double-layer coated 3D porous flexible pressure sensor and its application[J]. 2026, 45(1): 179-184.
DOI：

WU Kejue, FU Xinglan, HUANG Yuehua, et al. Double-layer coated 3D porous flexible pressure sensor and its application[J]. 2026, 45(1): 179-184. DOI：

摘要

柔性压力传感器因其具有良好的机械柔韧性、可穿戴性等优势已广泛应用于健康监测、机器人传感和形状识别等领域。在该研究中，以聚二甲基硅氧烷（PDMS）海绵为骨架，利用炭黑（CB）和多壁碳纳米管（MWCNTs）的不同包裹顺序，制作了5种传感器，再对压阻性能进行研究，发现不同复合顺序传感器的性能具有明显差异。在所有样品中，CB+MWCNTs@PDMS（先在PDMS海绵上包裹CB，再在包裹MWCNTs）传感器灵敏度最高，最大灵敏度为14.61kPa

-1

。同时

该传感器还具有320ms的快速响应时间、230ms的瞬时恢复时间、0~70kPa的检测范围和超过2000次循环稳定性，并且能够在10~50℃，40%~80%RH情况下保持性能稳定。并将该传感器在末端执行器上进行了应用研究，展示其在工、农业领域中拥有的巨大潜力。

Abstract

Flexible pressure sensors are widely used in health monitoring

robot sensing and shape recognition due to their good mechanical flexibility and wearability.In this study

five sensors are made using carbon black(CB)and multi-walled carbon nanotubes(MWCNTs)in different coating sequences on polydimethylsiloxane(PDMS)sponge as the skeleton.Then

the piezoresistive performance is studied

and it is found that the performance of the sensors with different composite sequences is significantly different.Among all the samples

the CB+MWCNTs@PDMS(where

CB is first wrapped on the PDMS sponge

followed by the wrappin

g of MWCNTs)sensor has the highest sensitivity

with a maximum sensitivity of 14.61kPa

-1

.At the same time

the sensor also has a fast response time of 320ms

an instantaneous recovery time of 230ms

a detection range of 0~70kPa and a stability of more than 2000 cycles.It can maintain stable performance at 10~50℃ and 40%~80%RH.The sensor is applied to end-effector

showing its great potential in industrial and agricultural fields.

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