MP-6 カーボンナノチューブ・ポリマー複合材の異方性熱伝導に関する分子動力学(ポスターセッション)

概要

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Polymer nanocomposites are one of the most promising applications of carbon nanotubes (CNTs). On targeting their reinforced thermal properties, it is important to understand their heat conduction characteristics from microscopic viewpoint. In this study, we have investigated heat conduction of CNT/polyethylene composites by using molecular dynamics simulations. Particularly, we focused on thermal boundary resistance across CNT/polyethylene interfaces and thermal conductivity of CNT in polyethylene matrix, which govern the overall thermal conductivity of CNT/polymer composites. We found low thermal boundary conductance across CNT/polyethylene interfaces (〜14MWm^<-2>K^<-1>) and thermal conductivity reduction of CNT in polyethylene matrix. The results reveal low heat conduction performance of CNT/polymer composites in spite of the ultrahigh intrinsic thermal conductivity of CNT. Following these analyses, overall thermal conductivity of CNT/polyethylene composite was calculated with effective medium approximation.
一般社団法人日本機械学会の論文
2011-09-25