Study of nanoparticles aggregation/agglomeration in polymer particulate nanocomposites by mechanical properties

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• 作者：Yasser Zare ; ^{y.zare@aut.ac.ir" class="auth_mail" title="E-mail the corresponding author}
• 关键词：A. Nanocomposites ; A. Polymer-matrix composites (PMCs) ; B. Mechanical properties
• 刊名：Composites Part A: Applied Science and Manufacturing
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：84
• 期：Complete
• 页码：158-164
• 全文大小：1186 K

文摘

A simple approach is described to study the aggregation/agglomeration details in polymer nanocomposites reinforced with spherical nanoparticles. The suggested methodology for mechanical properties can offer the aggregation/agglomeration level as a function of different parameters. In addition, the effective volume fraction of agglomerated nanoparticles in nanocomposite samples (ϕ_agg${\varphi }_{\text{agg}}$) is determined by the present technique.

The calculated results for various samples express that the aggregation/agglomeration of nanoparticles is occurred in all reported nanocomposites. Also, both aggregate/agglomerate and nanofiller diameters play important roles in aggregation/agglomeration level of samples. The aggregation/agglomeration extent increases by addition of nanofiller content and reduction of nanofiller size. Moreover, the aggregation/agglomeration decreases the effectiveness of nanoparticles in polymer matrix, which lastly results in the poor properties of samples.