PDMS-based conductive elastomeric composite with 3D reduced graphene oxide conductive network for flexible strain sensor

Wang, Xincheng; Tang, Yaokai; Cheng, Shangru; Gao, Qiangmin; Yuan, Yingxin; Li, Anqi; Guan, Shanshan

doi:10.1016/j.compositesa.2022.107113

Cited by 46 publications

(32 citation statements)

References 61 publications

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“…Thanks to the uniform conductive network structure due to the porous structure, CNT/PDMS-P with 0.5 wt% CNT loading showed repeatedly good stability of electrical signal response under strain loading of different frequencies. It has reached the level similar to other studies 37 and has the application potential of detecting human motion.…”

Section: Sensing Performancesupporting

confidence: 79%

A flexible strain sensor of porous conductive silicone rubber composites prepared from high internal phase emulsion

Liu

Xiang

Qiu

et al. 2023

J of Applied Polymer Sci

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In this work, a stretchable and compressible strain sensor was fabricated from conductive porous carbon nanotubes/polydimethylsiloxane (CNT/PDMS-P) high internal phase emulsion (HIPE), which was obtained by simple mechanical mixing of CNTs, PDMS, and water. Micropores were uniformly distributed in the PDMS matrix, with diameters mainly in the range of 3-9 μm and averaging 5.3 μm. Due to the confined dispersion of CNTs in the porous PDMS framework, the CNT/PDMS-P achieved a lower percolation threshold of 0.29 wt%. Compared to the non-porous composite (CNT/PDMS), its percolation threshold was reduced by 25%. Besides, the CNT/PDMS-P showed excellent sensitivity and cyclic stability. The sensitivity of CNT/PDMS-P was 50% higher than that of CNT/PDMS in the tensile strain range of 0%-10%. The stability tests for 1000 loading/unloading cycles showed that the maximum offset rate of CNT/PDMS-P was 58% lower than that of CNT/PDMS. The sensitivity of CNT/PDMS-P compression sensor was S = 0.00259 kPa À1 , which could detect the stress up to 600 kPa and maintain the standard waveform even after 1000 compression cycles. Finally, the potential application scenarios of the sensor, such as perception of human body limb movement, facial movement, gesture transformation, and human-computer interaction scenarios, were explored.

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Section: Sensing Performancesupporting

confidence: 79%

A flexible strain sensor of porous conductive silicone rubber composites prepared from high internal phase emulsion

Liu

Xiang

Qiu

et al. 2023

J of Applied Polymer Sci

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“…The main flexible polymer materials are polydimethylsiloxane (PDMS), polyethylene terephthalate (PET), polyimide (PI), polynaphthalene, and polyurethane. [46][47][48][49][50] Among them, PDMS and PET are widely used due to their good flexibility and mechanical stability. For instance, Maddirala and coworkers fabricated a unique capacitive pressure sensor by introducing gas chambers on an elastic PDMS substrate.…”

Section: Substrate Materials Compositionmentioning

confidence: 99%

Recent advances in the material design for intelligent wearable devices

Ye³

et al. 2023

Mater. Chem. Front.

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“…It is interesting to mention that graphene can be modified by other kinds of methods such as gamma irradiation, 96–99 electrochemical methods, 44,100,101 and heat treatment. 61,102–104…”

Section: Graphenementioning

confidence: 99%

Graphene in rubber formulations: a comprehensive review and performance optimization insights

Leong,

Lim,

Ibrahim

2023

Mol. Syst. Des. Eng.

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PDMS-based conductive elastomeric composite with 3D reduced graphene oxide conductive network for flexible strain sensor

Cited by 46 publications

References 61 publications

A flexible strain sensor of porous conductive silicone rubber composites prepared from high internal phase emulsion

A flexible strain sensor of porous conductive silicone rubber composites prepared from high internal phase emulsion

Recent advances in the material design for intelligent wearable devices

Graphene in rubber formulations: a comprehensive review and performance optimization insights

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