| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Thermal diffusivity of polyamide/graphite composites |
| 초록 |
The thermal diffusivity (TD) of graphite intercalated compound (GIC)/polyamides (PA6, PA66 and PA12) and graphite/PA composites were investigated. Composites were prepared by an in-situ exfoliation melting process and thermal diffusivity of the composites was measured by a laser flash method. The surface chemistry of the GIC and graphite was investigated using FTIR and the fracture morphology of the composites was observed by FE-SEM. Crystallinity and melting point of the composites measured by DSC. TD of the in-situ exfoliation processed PA/GIC composites showed a significant improvement over that of conventional PA/graphite composites. We suggest that the larger flake size and high expansion ratio of the GIC during the in-situ exfoliation process provided thermal diffusivity enhancement as well as 18 times at 20vol% of GIC. Melting point and crystallinity of the composites decreased with addition of the graphitic filler while the GICs provided higher crystallinity graphite ones. |
| 저자 |
Mohammad Poostforush1, 김유란1, 고현웅1, 이성구2, 김성룡1
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| 소속 |
1충주대, 2한국화학(연) |
| 키워드 |
Thermal diffusivity; Polyamide; composites; in-situ exfoliation
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| E-Mail |
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