Rheological behavior of hyperbranched polymer/montmorillonite clay nanocomposites

摘要: The equilibrium rheological properties of a range isotropic exfoliated and intercalated hyperbranched polymer (HBP)/montmorillonite (MMT) clay nanocomposites have been investigated using low strain oscillating shear measurements at temperatures above the glass transition temperature HBP. Predominantly showed sharp increase in viscosity about 0.8 wt % MMT, associated with from Newtonian to solid-like behavior, which was characterized terms limiting modulus frequencies high frequencies, both were strongly dependent on MMT content. Intercalated HBP/organically modified qualitatively similar but content far weaker. This argued reflect significantly lower effective particle aspect ratio than nanocomposites.