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Thermal Interface Conductance Between Aligned Polyethylene and Graphite

[+] Author Affiliations
Wei Lv, Asegun Henry

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2015-50492, pp. V08AT10A001; 5 pages
doi:10.1115/IMECE2015-50492
From:
  • ASME 2015 International Mechanical Engineering Congress and Exposition
  • Volume 8A: Heat Transfer and Thermal Engineering
  • Houston, Texas, USA, November 13–19, 2015
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5749-6
  • Copyright © 2015 by ASME

abstract

Molecular dynamics simulations are used to provide fundamental insights into the thermal interface resistance between aligned polyethylene chains and graphite layers using the Reactive Force Field (ReaxFF) potential[1] to describe the atomic interactions. We find that the interfacial conductance could alter more than two orders of magnitude when changing orientation of polymer fibers to graphite. This finding suggests that, by using highly stretched polymer fibers, one could then maximize the interfacial conductance to engineer high thermal conductivity polymer composites.

Copyright © 2015 by ASME

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