| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
3D Network of Graphene Fluoride in Epoxy Composites for Significantly Improved Thermal Conductivity and Electrical Insulation |
| 초록 |
Fabrication of polymer composites with high thermal conductivity and electrical insulation are necessity in electronic devices to dissipate the excessive heat. We report thermally conducting yet electrically insulating 3D structure of graphene fluoride (GF) based epoxy composites. GF was assembled on the cell walls of polyurethane foam (PUF) by dip-coating method. The PUF@GF was compressed and infiltrated with epoxy resin. Notably, the PUF@GF/epoxy composites exhibited maximum thermal conductivity of 9.68 W/mK at 8.04 vol% of GF loading which exhibits an enhancement of 4994% compared to the neat epoxy. The enhancement in thermal conductivity is owing to the well-connected 3D network of GF in the epoxy matrix. Moreover, the PUF@GF/epoxy composites show good electrical insulation property (10-9 S/m). This strategy exhibits a cost-effective way to fabricate thermoconductive composites for thermal management in electronic devices. Acknowledgment: The research was supported by a grant from the Academic Research Program of Korea National University of Transportation in 2021. |
| 저자 |
Mani Dineshkumar, Vu Minh Canh, Nguyen Vo Anh Thao, 정태형, 김준범, 김성룡
|
| 소속 |
Korea National Univ. of Transportation |
| 키워드 |
thermal conductivity; electrical insulation; 3D structure; graphene fluoride
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| E-Mail |
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