Heat conduction in graphite-nanoplatelet-reinforced polymer nanocomposites
Heat conduction in graphite-nanoplatelet-reinforced polymer nanocomposites
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DOI：
10.1063/1.2221874
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发表时间：
2006-07
影响因子：
4
通讯作者：
M. Hung;O. Choi;Y. Ju;H. Hahn
中科院分区：
文献类型：
--
作者：
M. Hung;O. Choi;Y. Ju;H. Hahn
采用高精度导热测量方法研究了石墨纳米片增强聚合物纳米复合材料的热传递。GNPs与聚合物基体之间的热传导阻力对纳米复合材料中的能量传输有很大的影响。用硝酸对GNPs进行预处理以改善界面结合，可以提高导热系数。然而，热导率的改善远远小于相应的机械性能的改善。从目前的热导率数据中提取的热界面电阻与先前报道的碳纳米管悬浮液的数据相当。
Heat transport in polymer nanocomposites reinforced with graphite nanoplatelets (GNPs) is studied using high-precision thermal conductivity measurements. The resistance to heat conduction across interfaces between GNPs and the polymer matrix has a strong effect on energy transport in the nanocomposites. The thermal conductivity is observed to increase when GNPs are pretreated with nitric acid to improve interfacial bonding. The improvement in the thermal conductivity, however, is much smaller than the corresponding improvement in mechanical properties. The thermal interface resistance extracted from the present thermal conductivity data is comparable to that obtained from the previously reported data on carbon nanotube suspensions.