화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO))
권호 45권 1호
발표분야 기능성 고분자
제목 Construction of heat radiating material with high effective heat transfer channel using PS-PMMA diblock copolymer
초록 Conventional heat radiating materials are produced by simply dispersing ceramic fillers in a polymer matrix. And it forms a heat transfer path over 50 wt% of ceramic filler, which decreases in the tensile strength of heat radiating material due to the high content of ceramic fillers. It is a barrier to commercialization. In this study, we use amphiphilic diblock copolymer which can selectively disperse aluminum oxide(Al2O3), thermally conductive filler. If Al2O3 is selectively dispersed through interaction with a specific block in a phase-separated block copolymer, Al2O3 is concentrated in a specific block. And it forms a 3D network heat transfer path by adding carbon nanotubes(CNT) to act as a heat transfer bridge between Al2O3. Therefore, the heat transfer path can be formed even at 50 wt% or less. Accordingly, it is expected to develop an electric insulating heat radiating material having lower ceramic filler content and improved tensile strength as well as thermal conductivity.
저자 배소연, 박찬수, 조남주
소속 부산대
키워드 heat radiating material; diblock copolymer; heat transfer
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