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Thermal conductivity of ceramic particle filled polymer composites and theoretical predictions

机译：陶瓷颗粒填充聚合物复合材料的导热系数及理论预测

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摘要

Models and theories for predicting the thermal conductivity of polymer composites were discussed. Effective Medium Theory (EMT), Agari model and Nielsen model respectively are introduced and are applied as predictions for the thermal conductivity of ceramic particle filled polymer composites. Thermal conductivity of experimentally prepared Si3N4/epoxy composite and some data cited from the literature are discussed using the above theories. Feasibility of the three methods as a prediction in the whole volume fraction region of the filler from 0 to 1 was evaluated for a comparison. As a conclusion: both EMT and Nielsen model can give a well prediction for the thermal conductivity at a low volume fraction of the filler; Agari model give a better prediction in the whole range, but with larger error percentage.
机译：讨论了预测聚合物复合材料导热系数的模型和理论。分别介绍了有效介质理论（EMT），Agari模型和Nielsen模型，并将其用作陶瓷颗粒填充聚合物复合材料导热系数的预测。利用上述理论讨论了实验制备的Si3 N4 /环氧树脂复合材料的热导率和文献中的一些数据。为了比较，评估了三种方法作为在填充剂的总体积分数区域中从0到1的预测的可行性。结论：EMT和Nielsen模型都可以很好地预测填料体积分数低时的热导率。 Agari模型可在整个范围内提供更好的预测，但误差百分比较大。

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  • 来源
    《Journal of Materials Science》 |2007年第16期|6749-6754|共6页
  • 作者

    Hong He; Renli Fu; Yanchun Han; Yuan Shen; Xiufeng Song;

  • 作者单位

    College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 210016 Nanjing P.R. China;

    College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 210016 Nanjing P.R. China;

    College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 210016 Nanjing P.R. China;

    College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 210016 Nanjing P.R. China;

    College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 210016 Nanjing P.R. China;

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