Modeling of interphase strength between polymer host and clay nanoparticles in nanocomposites by clay possessions and interfacial/ interphase terms

摘要

This article develops the equations for interphase strength and Pukanszky's "B" interphase parameter in clay nanocomposites as a function of clay properties and interfacial/interphase parameters. The experimental results of tensile strength for various samples are applied to validate the developed models. Moreover, the developed equations for interphase strength and "B" are examined by parametric analyses. All parameters acceptably influence the interphase strength and "B" confirming the advanced equations. Poor critical interfacial shear strength and strong polymer matrix positively handle the interphase strength, but only high critical interfacial shear strength causes a poor interphase. Additionally, the exceptionally poor interfacial shear strength or very short clay significantly deteriorates the interphase strength. Furthermore, only thick clay mainly weakens the interphase region demonstrating that the thick clay declines the efficiency of interphase area in the nanocomposites.