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首页> 外文期刊>Computational Materials Science >Interphase effect on the elastic and thermal conductivity response of polymer nanocomposite materials: 3D finite element study
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Interphase effect on the elastic and thermal conductivity response of polymer nanocomposite materials: 3D finite element study

机译：相间效应对聚合物纳米复合材料弹性和导热系数响应的3D有限元研究

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摘要

In this study, we developed 3-dimensional (3D) finite element modeling for the investigation of interphase effects on the elastic modulus and thermal conductivity of polymer nanocomposite materials filled with randomly oriented as well as unidirectional particles. We studied the effects of fillers geometry (long cylinders to sphere and thin discs), volume fraction and properties contrast and particularly the effect of interphase thickness and properties contrast on the effective thermal conductivity and elastic modulus of nanocomposite structures. Our results show that while the interphase effect is significant for the spherical fillers, it turns to be less effective as the fillers' geometry deviates more from spherical shape. The obtained results could be useful to guide design of nanocomposite materials with superior elastic and thermal conductivity properties.
机译：在这项研究中，我们开发了3维（3D）有限元模型，用于研究相间对填充有随机取向的单向颗粒的聚合物纳米复合材料的弹性模量和导热系数的影响。我们研究了填料几何形状（长圆柱体到球体和薄盘），体积分数和性能对比的影响，尤其是相间厚度和特性对比对纳米复合结构有效导热率和弹性模量的影响。我们的结果表明，尽管相间效应对于球形填料而言很明显，但随着填料几何形状与球形形状的偏离更大，其相变效果就会降低。获得的结果可能有助于指导具有优异的弹性和导热性能的纳米复合材料的设计。

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