Evaluation of nanoparticle dispersion and its influence on the tensile modulus of polymer nanocomposites by a modeling method

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• 作者：Yasser Zare
• 关键词：Polymer nanocomposites ; Tensile modulus ; Nanoparticle dispersion ; Modeling approach
• 刊名：Colloid and Polymer Science
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：295
• 期：2
• 页码：363-369
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Food Science; Nanotechnology and Microengineering;
• 出版者：Springer Berlin Heidelberg
• ISSN：1435-1536
• 卷排序：295

文摘

In this paper, the effect of nanoparticle dispersion on the tensile modulus of polymer nanocomposites is discussed by a two-step modeling technique. The nanoparticles and neighboring polymer chains are assumed as two-phase particles. At the next step, the nanocomposite is assumed as a composite which includes the polymer matrix and two-phase particles. The tensile moduli of two-phase particles and nanocomposites are predicted by proper models to estimate the dispersion quality of nanoparticles in a polymer matrix. The predictions of the suggested approach are evaluated by various experimental data, and the effects of the main parameters on the calculated modulus are explained. A good agreement is obtained between the experimental results of the tensile modulus and the predictions at a proper level of nanoparticle dispersion. The outputs of this method reveal that the mechanical properties of polymer nanocomposites depend more on the quality of nanoparticle dispersion compared to the nanoparticle characteristics.