Three-dimensional carbon nanotube based polymer composites for thermal management

Er Chieh Cho, Cai Wan Chang-Jian, Yu Sheng Hsiao, Kuen Chan Lee, Jen Hsien Huang

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

In this study, the porous multiwall carbon nanotube (MWCNT) foams possessing three-dimensional (3D) scaffold structures have been introduced into polydimethylsiloxane (PDMS) for enhancing the overall thermal conductivity (TC). This unique interconnected structure of freeze-dried MWCNT foams can provide thermally conductive pathways leading to higher TC. The TC of 3D MWCNT and PDMS composites can reach 0.82 W/m K, which is about 455% that of pure PDMS, and 300% higher than that of composites prepared from traditional blending process. The obtained polymer composites not only exhibit superior mechanical properties but also dimensional stability. To evaluate the performance of thermal management, the LED modulus incorporated with the 3D MWCNT/PDMS composite as heat sink is also fabricated. The composites display much faster and higher temperature rise than the pristine PDMS matrix, suggestive of its better thermal dissipation. These results imply that the as-developed 3D-MWCNT/PDMS composite can be a good candidate in thermal interface for thermal management of electronic devices.

Original languageEnglish
Pages (from-to)678-686
Number of pages9
JournalComposites - Part A: Applied Science and Manufacturing
Volume90
DOIs
Publication statusPublished - Nov 1 2016

Keywords

  • A. Multiwall carbon nanotube (MWCNT)
  • B. Thermal conductivity (TC)
  • C. Thermal management

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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