Thermal conductivity improvement of silicone elastomer with carbon nanotube loading
Thermal conductivity improvement of silicone elastomer with carbon nanotube loading
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DOI：
10.1063/1.1756680
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发表时间：
2004-05-24
影响因子：
4
通讯作者：
Fan, SS
中科院分区：
文献类型：
--
作者：
Liu, CH;Huang, H;Fan, SS
将未纯化的碳纳米管引入硅橡胶中，研究其对硅橡胶导热性能的影响。扫描电子显微镜的微观结构研究表明，碳纳米管（CNTs）可以很好地分散在基体中的研磨方法。没有观察到碳和有机硅基质之间的明显团聚体或相分离，并且CNT单独地处于随机取向。复合材料的热导率用ASTM（美国材料试验协会）D5470方法测量。导热系数kappa随碳含量的增加而增加。在3.8重量% CNT负载下，kappa值提高了65%。发现通过相等负载量的炭黑的增强比通过CNT负载量的增强稍低。结果表明，复合材料的电导率随着碳纳米管的加入而急剧增加. (C)2004年，美国物理学会。
Unpurified carbon nanotubes were introduced to silicone elastomer to investigate their effect on the thermal conductivity. Microstructure studies by a scanning electron microscope showed that the carbon nanotubes (CNTs) can be well dispersed in the matrix by the grinding method. No notable agglomerates or phase separation between the carbon and silicone matrix were observed, and the CNTs were individually in random orientation. The thermal conductivities of the composites were measured with the ASTM (American Society of Testing Materials) D5470 method. The thermal conductivities kappa were found to increase with the carbon amount. There was a 65% enhancement in kappa with 3.8 wt % CNT loading. The enhancement by equal loading of carbon black was found to be a little lower than that by the CNT loading. The composites loaded with CNTs displayed an abrupt increase in the electrical conductivity. (C) 2004 American Institute of Physics.