Investigation of mechanical, thermal and electrical properties of hybrid composites reinforced with multi-walled carbon nanotubes and fused silica particles
| Autor: | Kang Chang Soo, Gyo Woo Lee, Ki Chul Kwon, Kang Jeong Seok, Yun Oh |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Composite number Energy Engineering and Power Technology 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences Thermal expansion law.invention Inorganic Chemistry Thermal conductivity law Ultimate tensile strength Materials Chemistry Thermal stability Composite material Renewable Energy Sustainability and the Environment Process Chemistry and Technology Organic Chemistry Epoxy 021001 nanoscience & nanotechnology 0104 chemical sciences visual_art Heat transfer Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Carbon Letters. 30:353-365 |
| ISSN: | 2233-4998 1976-4251 |
| DOI: | 10.1007/s42823-019-00104-1 |
| Popis: | In this study, epoxy composites were reinforced with multi-walled carbon nanotubes and fused silica particles, dispersing the fillers within the epoxy resin based on a simple physical method using only shear mixing and ultrasonication. The hybrid composite specimens with 0.6 wt% of carbon nanotubes and 50 wt% of silica particles showed improved mechanical properties, with increase in tensile strength and Young’s modulus up to 12 and 37%, respectively, with respect to those of the baseline specimens. The experimental results showed that the low thermal expansion of the silica particles improved the thermal stability of the composites compared with that of the baseline specimen, whereas the thermal expansion slightly increased, due to the increased heat transfer from the exterior to the interior of specimens by the carbon nanotube filler. The coefficient of thermal expansion of the hybrid composite specimen reinforced with 0.6 wt% of carbon nanotubes and 50 wt% of silica particles was decreased by 25%, and the thermal conductivity was increased by about 84%, compared with those of the baseline specimen. |
| Databáze: | OpenAIRE |
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