작성자 최고관리자 | 작성일 2015-06-16 22:32:13 | 조회수 357
ACS Appl. Mater. Interfaces, 2014, 6 (10), pp 7498–7503
Seunggun Yu, Bo-In Park, Cheolmin Park, Soon Man Hong, Tae Hee Han*, and Chong Min Koo*
In this paper, we demonstrate a facile route to produce epoxy/carbon fiber composites providing continuous heat conduction pathway of Cu with a high degree of crystal perfection via electroplating, followed by rapid thermal annealing (RTA) treatment and compression molding. Copper shells on carbon fibers were coated through electroplating method and post-treated via RTA technique to reduce the degree of imperfection in the Cu crystal. The epoxy/Cu-plated carbon fiber composites with Cu shell of 12.0 vol % prepared via simple compression molding, revealed 18 times larger thermal conductivity (47.2 W m–1 K–1) in parallel direction and 6 times larger thermal conductivity (3.9 W m–1 K–1) in perpendicular direction than epoxy/carbon fiber composite. Our novel composites with RTA-treated carbon fiber/Cu core/shell hybrid showed heat conduction behavior of an excellent polymeric composite thermal conductor with continuous heat conduction pathway, comparable to theoretical values obtained from Hatta and Taya model.