Key Words:Nanocomposites;Electric fields - Electron microscopy - Electrorheological fluids - High resolution transmission electron microscopy - Nanofluidics - Rheology - Rheometers - Scanning electron microscopy - Silicones - Transmission electron microscopy - X ray diffraction;Core/shell structure - Electric field strength - Electrorheological behavior - Haake rheometers - Hierarchical structures - In-situ polymerization - Refluxing methods - Rotational rheometer

Abstract:Flower-like Fe<inf>2</inf>O<inf>3</inf>/polyaniline core/shell nanocomposite was obtained via a two-steps method. Firstly, monodispersed flower-like iron oxide was synthesized by a high temperature refluxing method. Then flower-like Fe<inf>2</inf>O<inf>3</inf>/polyaniline core/shell nanocomposite was further obtained via the in-situ polymerization. Scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), SQUID MPMS, UV-vis and Haake rheometer were used to investigate its structure, morphology and properties. The obtained Fe<inf>2</inf>O<inf>3</inf>/polyaniline nanocomposite reveals an interesting morphological combination of hierarchical and core/shell structure. Its electrorheological (ER) behavior were investigated using a rotational rheometer under different applied electric field strengths when dispersed in silicone oil, which shown an obvious ER activity. © 2016 Elsevier B.V..

Volume:498

Issue:期

Translation or Not:no