| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
고분자가공/복합재료－나노카본 고분자 복합필름 |
| 제목 |
Effect of the silica particles size on the electrical conductivity and CTE of epoxy/silver nanoparticles composites |
| 초록 |
In this study, we experimentally and theoretically demonstrated that the addition of silica particles could improve both the electrical conductivity and the thermomechanical properties of epoxy/silver nanocomposites. As silica particles were added, the electrical percolation threshold concentration of silver nanoparticles decreased and the electrical resistivity of the composite decreased by about 8 orders of magnitude. The coefficient of thermal expansion (CTE) also decreased with increasing volume fraction of silica particles. Molecular simulations showed that the additional silica particles made the effective intermolecular interactions between silver nanoparticles attractive, thereby enhancing the formation of an electrical percolation network. Also we investigate the effect of the silica particles size on the electrical conductivity and CTE of the epoxy/silver nanoparticles composites. |
| 저자 |
남승웅1, 유호연1, 성봉준2, 김대흠3, 김희숙1, 임순호1
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| 소속 |
1한국과학기술(연), 2서강대, 3광운대 |
| 키워드 |
silica; electrical conductivity; CTE
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| E-Mail |
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