| 초록 |
Conventional heat radiating materials are produced by simply dispersing ceramic fillers in a polymer matrix and need very high content of ceramic fillers to form a heat transfer path, which decreases the tensile strength of heat radiating material. In this study, amphiphilic diblock copolymer which can selectively disperse aluminum oxide(Al2O3) as a thermally conductive filler was used. If Al2O3 is selectively dispersed through interaction with a specific block in a phase separated block copolymer, Al2O3 is concentrated in a specific block. Also it forms a 3D network heat transfer path by adding small amount of carbon nanotubes(CNT) to act as a heat transfer bridge between Al2O3. Therefore, the electrical insulating heat radiating material prepared in this study can form a high effective heat transfer path, which leads to high thermal conductivity even at low ceramic filler content. |
