Covalent functionalization of carbon nanotubes and their use in dielectric epoxy composites to improve heat dissipation

Charles Baudot*, Cher Ming Tan

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

19 Scopus citations

Abstract

A method to enhance the thermal dissipation of epoxies is described. The method exploits the transport of heat by phonons so that the composite material designed remains dielectric. The improvement in thermal transport is guaranteed by the addition of functionalized carbon nanotube fillers which are covalently bonded to the epoxy matrix. We demonstrate that even if the covalent grafting of functional molecules affects the thermal transport within the nanotubes because of the disruption in periodicity of the structure, it improves the interfacial thermal conductance between the matrix and fillers. The trade-off has a net positive impact on the effective thermal conductivity of the composite material.

Original languageEnglish
Pages (from-to)2362-2369
Number of pages8
JournalCarbon
Volume49
Issue number7
DOIs
StatePublished - 06 2011
Externally publishedYes

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