Thermal conductivity of carbon nanotubes and graphene in epoxy nanofluids and nanocomposites

We employed an easy and direct method to measure the thermal conductivity of epoxy in the liquid (nanofluid) and solid (nanocomposite) states using both rodlike and platelet-like carbon-based nanostructures. Comparing the experimental results with the theoretical model, an anomalous enhancement was...

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Bibliographic Details
Published in:Nanoscale research letters 2011-12, Vol.6 (1), p.610-610, Article 610
Main Authors: Martin-Gallego, Mario, Verdejo, Raquel, Khayet, Mohamed, de Zarate, Jose Maria Ortiz, Essalhi, Mohamed, Lopez-Manchado, Miguel Angel
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Molecular Medicine
Nano Express
Nanochemistry
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
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Summary:We employed an easy and direct method to measure the thermal conductivity of epoxy in the liquid (nanofluid) and solid (nanocomposite) states using both rodlike and platelet-like carbon-based nanostructures. Comparing the experimental results with the theoretical model, an anomalous enhancement was obtained with multiwall carbon nanotubes, probably due to their layered structure and lowest surface resistance. Puzzling results for functionalized graphene sheet nanocomposites suggest that phonon coupling of the vibrational modes of the graphene and of the polymeric matrix plays a dominant role on the thermal conductivities of the liquid and solid states. PACS : 74.25.fc; 81.05.Qk; 81.07.Pr.
ISSN:1556-276X
1931-7573
1556-276X
DOI:10.1186/1556-276X-6-610