Flexible pressure sensor based on porous PDMS/MWCNTs

WANG Haichuan; MAO Peinan; Lü Hongwei; PENG Huiling

doi:10.13873/J.1000-9787(2020)04-0070-03

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Flexible pressure sensor based on porous PDMS/MWCNTs

更新时间：2025-09-11

- Flexible pressure sensor based on porous PDMS/MWCNTs
- Issue 4, Pages: 70-72+76(2020)
- 作者机构：
  
  1. 广西师范大学电子工程学院
  2. 桂林电器科学研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2020)04-0070-03
  CLC： TP212
- Published：2020
- 稿件说明：
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WANG Haichuan, MAO Peinan, Lü Hongwei, et al. Flexible pressure sensor based on porous PDMS/MWCNTs[J]. 2020, (4): 70-72+76.
DOI：

WANG Haichuan, MAO Peinan, Lü Hongwei, et al. Flexible pressure sensor based on porous PDMS/MWCNTs[J]. 2020, (4): 70-72+76. DOI： 10.13873/J.1000-9787(2020)04-0070-03.

摘要

制备了一种具有压阻效应的多孔聚二甲基硅氧烷/多壁碳纳米管（PDMS/MWCNTs）复合材料

并利用此复合材料制备了一种柔性压力传感器。多孔结构由NH

HCO

受热分解产生的气体形成

微孔分布均匀

直径为10～40μm。多孔PDMS/MWCNTs在受到压力时更容易产生形变

因此基于多孔PDMS/MWCNTs制备的柔性压力传感器灵敏度更高。实验表明:当加入NH

HCO

质量为PDMS质量的5%时

制备的多孔PDMS/MWCNTs压力传感器灵敏度最高

达到了0. 126 k Pa

-1

与没有多孔的PDMS/MWCNTs压力传感器相比提高了约4倍。此方法制备的柔性压力传感器具有灵敏度高、成本低、工艺简单的特点

在智能穿戴设备和医疗健康监测等领域有广阔的应用前景。

Abstract

A porous PDMS/MWCNTs composite with piezoresistive effect is prepared

and a flexible pressure sensor is prepared using the composite. The porous structure is formed through the gas generated by thermal decomposition of NH

HCO

and the micropores are evenly distributed with a diameter of 10 ～ 40 μm. Porous PDMS/MWCNTs are more prone to deformation under pressure

the flexible pressure sensors based on porous PDMS/MWCNTs are more sensitive. Experiments show that the mass of NH

HCO

is 5 % of PDMS

the sensitivity of the PDMS/MWCNTs pressure sensor is the highest

0. 126 k Pa

-1

which is about 4

times higher than that of PDMS/MWCNTs pressure sensor without porous. The flexible pressure sensor prepared by the method has the characteristics of high sensitivity

low cost and simple process

and has broad application prospects in the fields of smart wearable devices and medical health monitoring.

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