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Multifunctional Liquid Crystal Polymeric Composites Embedded With Graphene Nano Platelets

[+] Author Affiliations
Muhammad Omer Khan, Ellen Chan, Siu N. Leung, Hani Naguib, Francis Dawson

University of Toronto, Toronto, ON, Canada

Vincent Adinkrah

AEG Power Solutions Inc., Markham, ON, Canada

Paper No. SMASIS2011-5123, pp. 149-156; 8 pages
doi:10.1115/SMASIS2011-5123
From:
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
  • Scottsdale, Arizona, USA, September 18–21, 2011
  • ISBN: 978-0-7918-5471-6
  • Copyright © 2011 by ASME

abstract

This paper studies the development of new multifunctional liquid crystal polymeric composites filled with graphene nano platelets (GNPs) for electronic packaging applications. A series of parametric studies were conducted to study the effect of GNP content on the thermal conductivity of LCP-based nanocomposites. Graphene, ranging from 10 wt. % to 50 wt. %, were melt-compounded with LCP using a twin-screw compounder. The extrudates were ground and compression molded into small disc-shaped specimens. The thermal conductivity of LCP matrix was observed to have increased by more than 1000% where as the electrical conductivity increased by 13 orders of magnitude with the presence of 50 wt% GNP fillers. The morphology of the composites was analyzed using SEM micrographs to observe the dispersion of filler within the matrix. These thermally conductive composites represent potential cost-effective materials to injection mold three-dimensional, net-shape microelectronic enclosures with superior heat dissipation performance.

Copyright © 2011 by ASME

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