Gong Shushan, Chen Quan, Moll Joseph F, Kumar Sanat K, Colby Ralph H
Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802 United States.
Department of Chemical Engineering, Columbia University, 500 W 120th Street New York, New York 10027 United States.
ACS Macro Lett. 2014 Aug 19;3(8):773-777. doi: 10.1021/mz500252f. Epub 2014 Jul 24.
The impact of spherical nanoparticles (NPs) on the segmental dynamics of polymer melts is investigated. The addition of NPs broadens the segmental dynamics with effects of both particle size and loading. Interfacial bound layer thickness is calculated by the difference in magnitude of the segmental dynamics of pure polymer and nanocomposites. These theoretical models suggest that the bound layer thickness in the case of strongly adsorbing polymer matrices may increase with particle size.
研究了球形纳米颗粒（NPs）对聚合物熔体链段动力学的影响。纳米颗粒的加入拓宽了链段动力学，这受到粒径和负载量的影响。通过纯聚合物和纳米复合材料链段动力学大小的差异来计算界面结合层厚度。这些理论模型表明，在强吸附聚合物基体的情况下，结合层厚度可能会随粒径增加。
