Enhancement of thermal and electrical properties of carbon nanotube polymer composites by magnetic field processing

被引:437
作者
Choi, ES [1 ]
Brooks, JS
Eaton, DL
Al-Haik, MS
Hussaini, MY
Garmestani, H
Li, D
Dahmen, K
机构
[1] Florida State Univ, NHMFL, Tallahassee, FL 32310 USA
[2] Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA
[3] Georgia Inst Technol, Atlanta, GA 30332 USA
[4] Florida State Univ, Dept Chem, Tallahassee, FL 32306 USA
关键词
D O I
10.1063/1.1616638
中图分类号
O59 [应用物理学];
学科分类号
摘要
We show that the thermal and electrical properties of single wall carbon nanotube (CNT)-polymer composites are significantly enhanced by magnetic alignment during processing. The electrical transport properties of the composites are mainly governed by the hopping conduction with localization lengths comparable to bundle diameters. The bundling of nanotubes during the composite processing is an important factor for electrical, and in particular, for thermal transport properties. Better CNT isolation will be needed to reach the theoretical thermal conductivity limit for CNT composites. (C) 2003 American Institute of Physics.
引用
收藏
页码:6034 / 6039
页数:6
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