Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 2, Pages 225-227Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am800055s
Keywords
polymer nanocomposite; thermal conductivity; anodized alumina
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A highly thermoconductive insulative polymer nanocomposite with a nanoporous alpha-alumina sheet was reported. The thermal conductivity of the nanocomposite along the surface normal was 12 W m(-1). k(-1)(41 vol % alumina), a value as high as that predicted theoretically for a nanocomposite with thermoconductive fillers that form a perfectly connected thermoconductive network. The high thermal conductivity is probably due to the continuous alpha-alumina phase that functions as an efficient phonon path in the nanocomposite. The results suggest that the structure of the filler is important for the design of highly thermoconductive materials.
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