Title: Thermal diffusivity of copper/linear-low-density polyethylene composites
Page Range: p.447-452
Author(s): Carson J K; Mohamed Alsowailem
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 25
Issue No: No.6
Abstract
The thermal diffusivities of copper/linear-low-density polyethylene (Cu/LLDPE) composites were measured relative to the thermal diffusivity of pure LLDPE. The relative thermal diffusivities were similar to those obtained for copper/high-density polyethylene composites, but were noticeably different from estimated values derived from thermal conductivity, density and specific heat capacity data for Cu/LLDPE from the literature. The thermal diffusivity of the composite material initially decreased below that of the pure polymer with the addition of a small amount of copper, before increasing above it as more was added. There would appear to be marginal or no benefit from adding less than about 15 to 20% metal by volume to a polymer, since the relative increase in thermal diffusivity only becomes significant for greater volumes. 24 Refs.
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