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Influence of interfacial modification on the thermal conductivity of polymer composites

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Abstract

In this study, the influence of modifying ZnO filler with surface-treating agents on the thermal conductivity of the ethylene-vinyl acetate copolymer (EVA) composites was reported. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were applied to analyze the surface modification of ZnO filler and the fractured surface morphology of the EVA–ZnO composites. The test results indicated that surface-treating ZnO filler with the valid modifying agents (stearic acid, OL-AT16, KH-560, or NDZ-132) at right dosage and treating temperature, the thermal conductivity of the EVA–ZnO composites can be enhanced effectively on account of reducing the interfacial phonon scattering; while the dosage of modifying agents exceed a right amount, the thermal conductivity of EVA–ZnO composites modified with the small-molecule treating agents (F-1, n-Octylic acid, or stearic acid) descend more evidently with the dosage increase.

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Authors and Affiliations

  1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People’s Republic of China

    Bin Lee & Gance Dai

  2. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China

    Bin Lee

Authors
  1. Bin Lee
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  2. Gance Dai
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Correspondence to Bin Lee.

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Lee, B., Dai, G. Influence of interfacial modification on the thermal conductivity of polymer composites. J Mater Sci 44, 4848–4855 (2009). https://doi.org/10.1007/s10853-009-3739-6

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  • DOI: https://doi.org/10.1007/s10853-009-3739-6

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