Thermal diffusivity of antifriction polymer composites

Vettegren, V. I.; Bashkarev, A. Ya.; Suslov, M. A.

doi:10.1134/s1063785007100185

Cited by 9 publications

(2 citation statements)

References 6 publications

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“…Thermal diffusivity is a measure of the rate of heat propagation through a material and it is an important property in nonsteady-state heat transfer, which occurs during the heating and cooling of a material [1]. Thermal diffusivity is crucial in certain practical applications and polymer composites with high thermal diffusivity can potentially be used in electronic circuit boards, heat sinks and light weight thermal management systems.…”

Section: Introductionmentioning

confidence: 99%

Thermal diffusivity of in-situ exfoliated graphite intercalated compound/polyamide and graphite/polyamide composites

Kim¹,

Poostforush²,

Kim³

et al. 2012

Express Polym. Lett.

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Abstract. The thermal diffusivity of graphite intercalated compound (GIC)/polyamides (PA6, PA66 and PA12) and graphite/polyamides composites were investigated. The polyamides/GIC composites were prepared by an in-situ exfoliation melting process and thermal diffusivity of the composites was measured by a laser flash method. The surface chemistry of the GIC and graphite was investigated using Fourier transform infrared spectroscopy, the fracture morphology of the composites was observed by field emission scanning electron microscopy. The thermal diffusivity of the in-situ exfoliation processed PA/GIC composites showed a significant improvement over those of PA/expanded graphite intercalated compound composites and PA/graphite composites. We suggest that the larger flake size and high expansion ratio of the GIC during the in-situ exfoliation process leads to 3-dimensional conductive pathways and high thermal diffusivity. Thermal diffusivity of the polyamides/GIC (20 vol%) composites was increased approximately 18 times compared to that of pure polyamides.

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Section: Introductionmentioning

confidence: 99%

Thermal diffusivity of in-situ exfoliated graphite intercalated compound/polyamide and graphite/polyamide composites

Kim¹,

Poostforush²,

Kim³

et al. 2012

Express Polym. Lett.

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“…Nonetheless, the fiber-containing glasses (from field B) could be considered promising as precursors in manufacturing of fiber-shaped TiO 2 crystals (Fig. 8); such fibers, in spite of their dangerous shape, are widely used as reinforcements in the manufacture of different composite materials and catalysts [27][28][29]. The size and type of the resulting material, with fiber-shaped rutile, whiskers-like anatase or their combination, can be controlled by manipulating the chemical composition of the raw material mixture, located in the subfields B1, B2 or B3, respectively.…”

Section: Discussionmentioning

confidence: 99%

Vitrification and crystallization in the system of K2O–B2O3–TiO2

Gonzáles-Lozano¹,

Gorokhovsky²,

Escalante-Garcı́a³

2009

Journal of Non-Crystalline Solids

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Thermal diffusivity of nanocarbon composites

et al. 2010

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This study was performed to measure the thermal diffusivity of different types of nanocarbon composites. Thermoexfoliated graphite (TEG), ultrasonically dispersed TEG, and multiwalled carbon nanotubes were used as fillers in epoxy polymer matrixes. The nanocarbon filler content was 1–10 wt%. The temperature dependence of the thermal conductivity and the heat capacity were extensively characterized in the temperature range between 150 and 425 K. For this purpose, the thermal diffusivity of the composites was investigated by two experimental methods: dynamic λ‐calorimeter and photoacoustic. The comparative analysis of thermal diffusivity of compacted TEG samples with different densities and of nanocarbon‐epoxy with different filler content was carried out. It was found that for the composites with a low distribution of the nanocarbon filler, the thermal diffusivity increases and that the value is determined by the structural and morphological properties of the filler. The orientation function for the TEG‐epoxy composites and the compact TEG samples differs due to the epoxy matrix that reduced anisotropy of the composite. POLYM. COMPOS., 2011. © 2010 Society of Plastics Engineers

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Thermal diffusivity of antifriction polymer composites

Cited by 9 publications

References 6 publications

Thermal diffusivity of in-situ exfoliated graphite intercalated compound/polyamide and graphite/polyamide composites

Thermal diffusivity of in-situ exfoliated graphite intercalated compound/polyamide and graphite/polyamide composites

Vitrification and crystallization in the system of K2O–B2O3–TiO2

Thermal diffusivity of nanocarbon composites

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