Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites
Jakubinek, Michael B.
White, Mary Anne
Winey, Karen I.
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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.
Jakubinek, Michael B., Mary Anne White, Minfang Mu, and Karen I. Winey. 2010. "Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites." Applied Physics Letters 96(8): 083105-083105.