Comprehensive analysis on the electrical behavior of highly stretchable carbon nanotubes/polymer composite through numerical simulation
| Autor: | Maximiano Ramos, Yi-Feng Chen, Ahmed M. Al-Jumaily, Xiang Fu |
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| Rok vydání: | 2018 |
| Předmět: |
Nanotube
Fabrication Materials science Physics::Medical Physics Composite number 02 engineering and technology Carbon nanotube 010402 general chemistry Elastomer 01 natural sciences law.invention Condensed Matter::Materials Science law General Materials Science Composite material chemistry.chemical_classification Mechanical Engineering Percolation threshold Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics Aspect ratio (image) 0104 chemical sciences chemistry Mechanics of Materials 0210 nano-technology |
| Zdroj: | Journal of Materials Research. 33:3398-3407 |
| ISSN: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2018.301 |
| Popis: | The elastic polymer composite embedded with carbon nanotubes (CNTs) is an ideal candidate for stretchable and flexible sensor fabrication due to the perfect combination between the excellent properties of CNTs and the high stretchability of the elastomer. A cube model of nanotube/polymer composite is constructed to comprehensively and theoretically analyze its electrical behavior, which is dominantly governed by the CNT network. The aspect ratio and alignment of CNTs significantly influence both the percolation threshold range and the electrical conductivity; however, the electrical conductivity of CNTs has little impact on the percolation threshold. The piezoresistivity of the composite is not only governed by the property of CNTs but also by the mechanical property of the polymer matrix, including the Poisson’s ratio and alignment of CNTs. The specific reasons why the composite resistance rises when it is stretched are investigated. Finally, one optimizing suggestion is given for making the CNTs/polymer composite with high sensitivity. |
| Databáze: | OpenAIRE |
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