Comparison of carbon nanotubes and nanodisks as percolative fillers in electrically conductive composites
| Autor: | Alexander Gryson, Yurii K. Gun'ko, Martin Cadek, Jonathan N. Coleman, Yenny Hernandez, Fiona M. Blighe, Werner J. Blau, Valeria Nicolosi |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
Nanocomposite Mechanical Engineering Composite number Metals and Alloys chemistry.chemical_element Percolation threshold Carbon nanotube Conductivity Condensed Matter Physics law.invention chemistry Mechanics of Materials law Percolation Volume fraction General Materials Science Composite material Carbon |
| Zdroj: | Scripta Materialia. 58:69-72 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2007.08.025 |
| Popis: | Composites based on polyvinylalcohol have been fabricated from solution with either carbon nanotubes or carbon nanodisks as fillers. Addition of both filler types resulted in conductivity scaling with volume fraction according to σ = σ 0 ( p − p c ) t . The nanotube-based composites displayed percolation thresholds of 0.4 vol.% compared to 2.1 vol.% for the nanodisks, which is higher than expected due to disk alignment. Maximum conductivities observed were ∼1 S m −1 for both composite types. Values of σ 0 of 20 and 40 S m −1 were calculated for nanotubes and nanodisks, respectively. |
| Databáze: | OpenAIRE |
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