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

Sung Gook Jin, Sang-Soo Lee

Research output: Contribution to conferencePaper

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 Jan 1
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
CountryDenmark
CityCopenhagen
Period15/7/1915/7/24

Keywords

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

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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