Super soft but strong E-Skin based on carbon fiber/carbon black/silicone composite: Truly mimicking tactile sensing and mechanical behavior of human skin

Fu, Yafei; Yi, Fenglian; Liu, Jin-Rui; Li, Yuanqing; Wang, Zeyu; Ye, Gang; Huang, Pei; Hu, Ning; Fu, Shao‐Yun

doi:10.1016/j.compscitech.2019.107910

Cited by 42 publications

(37 citation statements)

References 31 publications

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“…Over the past decade, promising applications of pressure sensors such as motion detection [ 1 , 2 ], health monitoring [ 3 , 4 ] and tactile-sensitive skin [ 5 , 6 ] have received significant attention. This has driven demand for wearable and flexible pressure sensors.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Pressure Sensing Properties of Carbon Nanotubes and Carbon Black Polymer Composites

Yoo

Kim

et al. 2022

Materials

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Polymer composites containing conductive fillers that utilize the piezoresistive effect can be employed in flexible pressure sensors. Depending on the filler used, different characteristics of a pressure sensor such as repeatability, sensitivity, and hysteresis can be determined. To confirm the variation of the pressure sensing tendency in accordance with the dimensions of the filler, carbon black (CB) and carbon nanotubes (CNTs) were used as representative 0-dimension and 1-dimension conductive fillers, respectively. The piezoresistive effect was exploited to analyze the process of resistance change according to pressure using CB/PDMS (polydimethylsiloxane) and CNT/PDMS composites. The electrical characteristics observed for each filler were confirmed to be in accordance with its content. The pressure sensitivity of each composite was optimized, and the pressure-sensing mechanism that explains the difference in sensitivity is presented. Through repeated compression experiments, the hysteresis and repeatability of the pressure-sensing properties were examined.

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Section: Introductionmentioning

confidence: 99%

Comparison of Pressure Sensing Properties of Carbon Nanotubes and Carbon Black Polymer Composites

Yoo

Kim

et al. 2022

Materials

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“…Further investigations on the behavior of 3D/4D-printed SPAs could be conducted for uncertain environments, such as amphibious for the under-water grasping ability for floating objects (Hao et al 2017;Sun, Wang, and Zhu 2020;Zhang et al 2020). This could be investigated further with advanced multimodal sensors (Chen et al 2020) and electronic skin (e-skin) (Shih et al 2020;Fu et al 2020). The FEA could be used in kinematic model development of SPAs where an adequately large amount of data is required to train the ANN (Runge, Wiese, and Raatz 2017).…”

Section: Discussion Challenges and Future Directionsmentioning

confidence: 99%

3D/4D-printed bending-type soft pneumatic actuators: fabrication, modelling, and control

Zolfagharian

Mahmud

Gharaie

et al. 2020

Virtual and Physical Prototyping

115

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This article reviews soft pneumatic actuators (SPAs) that are manufactured entirely via additive manufacturing methods. These actuators are known as four-dimensional (4D)-printed SPAs and can generate bending motions in response to either pressurized or vacuum (negative pressure) air stimulus after fabrication. They are characterized by geometrical and material factors that determine their motion trajectory, and the force they exert on manipulated soft objects in delicate applications such as food handling and non-invasive surgery. Here, we review various 3D printers and materials used for the fabrication of the pressurized air bendingtype SPAs. The reported approaches for modeling and control of these actuators are presented and compared. General discussions, as well as future directions and challenges of these actuators, are given.

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“…[ 8 ] A piezoresistive sensor based on CB/silicone was reported and has shown super softness, high strain sensitivity, long‐term reliability, and large stretchability for the e‐skin. [ 85 ] A 3D elastic porous CNT sponge was successfully applied in the piezoresistive sensor. The CNT sponge‐based sensor has presented an ultrahigh sensitivity of 4015.8 kPa −1 (Figure 3e).…”

Section: Piezoresistive Pressure Sensors Based On E‐skinmentioning

confidence: 99%

Recent Progress in Flexible Pressure Sensors Based Electronic Skin

2021

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In recent years, implantable electronics, electronic skin (e-skin), and flexible wearable devices have been developed due to their extensive applications in health monitoring, intelligent robots, and human disease treatment. Tactile sensors are the keys necessary to build skin-inspired electronics. This article reviews the latest progress of e-skin-based flexible pressure sensors, such as piezoresistivity, capacitance, triboelectricity, and piezoelectricity from 2018 up to now. The working principles, structure design, active materials, and performance of numerous flexible pressure sensors are covered in detail. Finally, insights are provided and challenges and future perspectives of flexible pressure sensors in practical applications are discussed.

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Super soft but strong E-Skin based on carbon fiber/carbon black/silicone composite: Truly mimicking tactile sensing and mechanical behavior of human skin

Cited by 42 publications

References 31 publications

Comparison of Pressure Sensing Properties of Carbon Nanotubes and Carbon Black Polymer Composites

Comparison of Pressure Sensing Properties of Carbon Nanotubes and Carbon Black Polymer Composites

3D/4D-printed bending-type soft pneumatic actuators: fabrication, modelling, and control

Recent Progress in Flexible Pressure Sensors Based Electronic Skin

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