Improving thermal and mechanical properties of the alumina filled silicone rubber composite by incorporating carbon nanotubes
| Autor: | Feiyu Kang, Jia-long Lin, Yan-Bing He, Shiming Su |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Materials Science (miscellaneous) Composite number 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Thermal conduction Silicone rubber 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Thermal conductivity Natural rubber chemistry law visual_art visual_art.visual_art_medium Surface modification General Materials Science Composite material 0210 nano-technology Mass fraction |
| Zdroj: | New Carbon Materials. 35:66-72 |
| ISSN: | 1872-5805 |
| Popis: | Carbon nanotubes (CNTs) can be used to improve the thermal and mechanical properties of composites owing to their excellent characteristics. Methyl vinyl silicone rubber matrix composites filled with alumina (Al2O3) powder and CNTs were fabricated through a conventional mechanical blending method. The effects of the mass fraction, surface modification of Al2O3 powder and the addition of CNTs on the thermal conductivity, Young's modulus and hardness of the composites were investigated. Results show that a higher mass fraction of the Al2O3 powder results in a higher thermal conductivity of the composites. When the mass fraction of Al2O3 powder is fixed, the thermal conductivity, Young's modulus and hardness of the composites are improved obviously by surface modification of Al2O3 powder and adding a small amount of CNTs. The combination of the modified Al2O3 filler and CNTs filler can synergistically enhance the interfacial interaction between the fillers and rubber matrix by the formation of better heat conduction channels and network structures in the rubber matrix, thereby improving the thermal conductivity and mechanical properties of the composites. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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