Elasticity or viscosity, which one is more influential on the internal structure of a core-shell morphology in ternary blends?

Abstract

The goal of this research was to study the internal phase structure of core-shell morphology within a ternary blend and look into the affecting parameters. In this way, a series of SEBS/SAN/PA6 ternary blends representing core-shell morphology were prepared and effect of viscosity and elasticity of core-forming component on the phase structure of core droplets were investigated. Studies based on the scanning electron microscopy micrographs demonstrated that elasticity plays a more dominant role on the formation of single or multi-core droplets. In addition, it was inferred that absolute elasticity of core component is more influential rather than elasticity ratio of core and shell components. Furthermore, morphology of prepared samples compared with predictions of DIE and modified DIE conceptual models.