Super soft but strong E-Skin based on carbon fiber/carbon black/silicone composite: Truly mimicking tactile sensing and mechanical behavior of human skin
| Autor: | Yuan-Qing Li, Pei Huang, Feng-Lian Yi, Gang Yang, Ze-Yu Wang, Jin-Rui Liu, Ning Hu, Ya-Fei Fu, Shao-Yun Fu |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
integumentary system Composite number General Engineering Modulus Human skin 02 engineering and technology Carbon black 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Contact force chemistry.chemical_compound Silicone chemistry Electrode Ultimate tensile strength Ceramics and Composites Composite material 0210 nano-technology |
| Zdroj: | Composites Science and Technology. 186:107910 |
| ISSN: | 0266-3538 |
| DOI: | 10.1016/j.compscitech.2019.107910 |
| Popis: | Besides the prominent tactile sensing ability, human skin is also well known for its unique mechanical behavior – combination of excellent softness with certain stretchability of a strain-limiting effect to prevent damage from excessive strain. Here a stretchable e-skin truly mimicking the tactile sensing and mechanical behavior of human skin is fabricated. Carbon black (CB)/silicone composite with excellent piezo-resistive performance is employed as mechanical stimuli sensing material, which provides super softness, large stretchability, high strain sensitivity and long-term reliability for the e-skin. High performance carbon fiber (CF) with quasi-sinusoidal shape is designed to serve as electrode material and reinforcement filler simultaneously, which renders the e-skin a typical J-shape stress-strain curve similar as that of human skin. The Young's modulus, tensile strength and failure strain of the e-skin can be readily adjusted by controlling the content and shape of the CF electrode to match them well with those of human skin. Finally, the fabricated e-skin exhibits the capability of spatiotemporal recognition of the location and magnitude of contact forces in monitoring dynamic stress distribution. The as-prepared stretchable e-skin based on CF/CB/silicone composite is highly promising for robotics and prosthetics, etc. |
| Databáze: | OpenAIRE |
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