The thermal conductivity of single-walled carbon nanotube (SWCNT)/polystyrene composites, prepared by a method known to produce a uniform distribution of SWCNT bundles on the micrometer length scale, was measured in the temperature range from approximately 140 to 360 K. The thermal conductivity enhancement (50% for 1 mass % at 300 K) is reasonably constant above room temperature but is reduced at the lower temperatures. This result is consistent with the expected, large contribution of interfacial thermal resistance in SWCNT/polymer composites. Enhancements in electrical conductivity show that 1 mass % loading is in the region of the electrical percolation threshold.
Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites
Michael B. Jakubinek, Mary Anne White, Minfang Mu, Karen I. Winey; Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites. Appl. Phys. Lett. 22 February 2010; 96 (8): 083105. https://doi.org/10.1063/1.3323095
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