Graphite nanosheet 3-D networks for polymer composites capable of enhanced heat transport

Sung Gook Jin, Sang Soo Lee

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, we prepared 3-D network architecture of graphite nanosheets (GNS) to construct an efficient pathway for the thermal energy transfer in preparing a thermal management composite material. In achieving 3-D GNS network of excellent thermal energy transfer under practically usable condition, GNS filling into the interstitial sites among colloidal polymer particle aggregates and following removal of polymer components were conducted. The voids surrounded by 3-D network of GNS were re-filled out using butylene terephthalate-based cyclic oligomers which were ring-opening polymerized to form a PBT/GNS nanocomposite. The thermal conductivity of the PBT/GNS nanocomposite employing 3-D interconnected GNS content as low as 9 wt% has reached ca. 4.3 W /mK, that is much higher than the case of randomly distributed GNS of comparable amount. The capability of controlling lateral size and thickness of GNS as well as the 3-D macroporous interconnected graphene framework in polymer matrix should greatly assist the commercialization of high-quality graphene-based thermal management materials in a scalable production process.

Original languageEnglish
Publication statusPublished - 2015
Event20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark
Duration: 2015 Jul 192015 Jul 24

Other

Other20th International Conference on Composite Materials, ICCM 2015
Country/TerritoryDenmark
CityCopenhagen
Period15/7/1915/7/24

Bibliographical note

Funding Information:
This work was kindly supported by a grant (Code No. 2011-0032156) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT & Future Planning, Korea, and the R&D program for the technology of World Premier Materials by the Ministry of Trade, Industry and Energy, Korea, as well as the internal project of KIST. S.-S. Lee also appreciates the research grant from the KU-KIST Graduate School.

Publisher Copyright:
© 2015 International Committee on Composite Materials. All rights reserved.

Keywords

  • Graphite nanosheet
  • Nanocomposite
  • Thermal energy transfer
  • Three dimensional interconnected network

ASJC Scopus subject areas

  • General Engineering
  • Ceramics and Composites

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