| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Increased Anisotropy of Thermally Conductive Polyimide Composite Films based on Magnetically aligned h-BN |
| 초록 |
Recently, heat accumulation in the electronic devices is a serious problem for their optimum important influence performance and operation. However, current technology is a simple blending by increasing the amount of high thermal conductive inorganic filler. In this study, thermally conductive polymer composite films based polyimide (PI) and magnetically aligned hexagonal boron nitride (h-BN) filler were prepared by a casting method. Hydroxy groups on h-BN surface facilitate the iron oxide attached by electrostatic attraction and the resulting h-BN particles can be aligned under magnetic field. Structure of mh-BN was confirmed by SEM, XPS and thermal diffusivity of the prepared films was measured by a laser flash analyser (LFA-447, Netzsch). It was confirmed that thermal conductivity was changed with depending on the magnetic rearrangement of fillers. |
| 저자 |
유영재1, 배윤상2, 김병각1, 김용석1, 하성민1, 송희석1
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| 소속 |
1한국화학(연), 2연세대 |
| 키워드 |
Thermal conductivity; Polyimide; Boron Nitride; Composite; Magnetic field
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| E-Mail |
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