Thermal Conduction in Aligned Carbon Nanotube–Polymer Nanocomposites with High Packing Density

Author(s)
Marconnet, Amy Marie; Yamamoto, Namiko; Panzer, Matthew A.; Wardle, Brian L.; Goodson, Kenneth E.
Thumbnail
DownloadMarconnet_ACS2011 (711.4Kb)
PUBLISHER_POLICY
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
Nanostructured composites containing aligned carbon nanotubes (CNTs) are very promising as interface materials for electronic systems and thermoelectric power generators. We report the first data for the thermal conductivity of densified, aligned multiwall CNT nanocomposite films for a range of CNT volume fractions. A 1 vol % CNT composite more than doubles the thermal conductivity of the base polymer. Denser arrays (17 vol % CNTs) enhance the thermal conductivity by as much as a factor of 18 and there is a nonlinear trend with CNT volume fraction. This article discusses the impact of CNT density on thermal conduction considering boundary resistances, increased defect concentrations, and the possibility of suppressed phonon modes in the CNTs.
Date issued
2011-05
URI
http://hdl.handle.net/1721.1/71651
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Journal
ACS Nano
Publisher
American Chemical Society
Citation
Marconnet, Amy M. et al. “Thermal Conduction in Aligned Carbon Nanotube–Polymer Nanocomposites with High Packing Density.” ACS Nano 5.6 (2011): 4818–4825. Web.
Version: Author's final manuscript
ISSN
1936-0851
1936-086X
Collections