Enhanced interfacial thermal transport across graphene-polymer interfaces by grafting polymer chains

Mingchao Wang, Ning Hu, Li Min Zhou, Cheng Yan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

92 Citations (Scopus)

Abstract

Thermal transport in graphene-polymer nanocomposite is complicated and has not been well understood. The interfacial thermal transport between graphene nanofiller and polymer matrix is expected to play a key role in controlling the overall thermal performance of graphene-polymer nanocomposite. In this work, we investigated the thermal transport across graphene-polymer interfaces functionalized with end-grafted polymer chains using molecular dynamics simulations. The effects of grafting density, chain length and initial morphology on the interfacial thermal transport were systematically investigated. It was found that end-grafted polymer chains could significantly enhance interfacial thermal transport and the underlying mechanism was considered to be the enhanced vibration coupling between graphene and polymer. In addition, a theoretical model based on effective medium theory was established to predict the thermal conductivity in graphene-polymer nanocomposites.
Original languageEnglish
Pages (from-to)414-421
Number of pages8
JournalCarbon
Volume85
DOIs
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Chemistry(all)

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