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Hybrid fillers of hexagonal and cubic boron nitride in epoxy composites for thermal management applications

机译：环氧复合材料中六边形和立方氮化物的杂交填料，用于热管理应用

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摘要

In this study, the synergistic effect of hexagonal boron nitride (h-BN) with cubic boron nitride (c-BN) on enhancement of thermal conductivity of epoxy resin composites has been reported. The measured thermal conductivities of the epoxy composites filled with h-BN, c-BN and hybrid h-BN/c-BN compared with the theoretical predications of Agari's model strongly suggest that the combination of h-BN platelets and c-BN spherical particles with different sizes is beneficial to enhance the thermal conductivity of the polymer composites by preferentially forming 3D thermally conductive networks at low loading content. Furthermore, the small addition of gold nanoparticles enhances the thermal conductivity from 166% to 237%. The potential application of these composites for thermal management has been demonstrated by the surface temperature variations in real time during heating. The results demonstrate that such thermally conductive but electrically insulating polymer-based composites are highly desirable for thermal management applications.
机译：在该研究中，已经报道了六边形氮化物（H-Bn）与立方氮化硼（C-Bn）对环氧树脂复合材料的热导率的增强的协同作用。填充的h-BN，C-BN和混合的h-BN / C-BN与Agari的模型的理论断言相比，环氧复合材料的所测量的热导率强烈地表明的h-BN的血小板和c-BN球形颗粒的组合通过不同的尺寸是有益的，可以通过优先于低负载含量形成3D导热网络来提高聚合物复合材料的导热率。此外，少加入金纳米颗粒从166％达237％增大导热率。通过在加热期间实时变化，表面温度变化已经证明了这些复合材料的潜在应用。结果表明，这种导热但电绝缘的聚合物基复合材料非常希望热管理应用。

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  • 来源
    《RSC Advances》 |2019年第13期|共12页
  • 作者

    Zhang Yuyuan; Gao Wei; Li Yujing; Zhao Dehe; Yin Hong;

  • 作者单位

    Jilin Univ Coll Phys State Key Lab Superhard Mat Changchun 130012 Jilin Peoples R China;

    Jilin Univ Coll Phys State Key Lab Superhard Mat Changchun 130012 Jilin Peoples R China;

    Jilin Univ Coll Phys State Key Lab Superhard Mat Changchun 130012 Jilin Peoples R China;

    Jilin Univ Coll Phys State Key Lab Superhard Mat Changchun 130012 Jilin Peoples R China;

    Jilin Univ Coll Phys State Key Lab Superhard Mat Changchun 130012 Jilin Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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