Martinez-Garcia Julio Cesar, Serraïma-Ferrer Alexandre, Lopeandía-Fernández Aitor, Lattuada Marco, Sapkota Janak, Rodríguez-Viejo Javier
Department of Physics, Nanomaterials and Microsystems Group, GNaM, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
Catalan Institute of Nanoscience and Nanotechnology (ICN2), Campus Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain.
Nanomaterials (Basel). 2021 Mar 24;11(4):830. doi: 10.3390/nano11040830.
In this work, the effective mechanical reinforcement of polymeric nanocomposites containing spherical particle fillers is predicted based on a generalized analytical three-phase-series-parallel model, considering the concepts of percolation and the interfacial glassy region. While the concept of percolation is solely taken as a contribution of the filler-network, we herein show that the glassy interphase between filler and matrix, which is often in the nanometers range, is also to be considered while interpreting enhanced mechanical properties of particulate filled polymeric nanocomposites. To demonstrate the relevance of the proposed generalized equation, we have fitted several experimental results which show a good agreement with theoretical predictions. Thus, the approach presented here can be valuable to elucidate new possible conceptual routes for the creation of new materials with fundamental technological applications and can open a new research avenue for future studies.
在这项工作中，基于广义解析三相串并联模型，考虑渗流和界面玻璃态区域的概念，预测了含球形颗粒填料的聚合物纳米复合材料的有效机械增强作用。虽然渗流概念仅被视为填料网络的一种贡献，但我们在此表明，在解释颗粒填充聚合物纳米复合材料增强的机械性能时，还应考虑填料与基体之间通常在纳米范围内的玻璃态界面相。为了证明所提出的广义方程的相关性，我们拟合了几个实验结果，这些结果与理论预测显示出良好的一致性。因此，这里提出的方法对于阐明具有基础技术应用的新材料创造的新的可能概念路线可能是有价值的，并且可以为未来的研究开辟一条新的研究途径。
