Viscosity of liquid suspensions with fractal aggregates: Magnetic nanoparticles in petroleum colloidal structures

► Development of the model explaining viscosity behavior of non-Newtonian colloidal liquids with fractal aggregates. ► Experimental proofs of the model in rheology and spectroscopy experiments. ► Transmission electron microscopy checking of fractal-like aggregates consisting of petroleum colloidal particles and iron oxide nanoparticles.