Correlating Rheological Experiments, TEVP Models, and Microstructure with Small Angle Light Scattering

The existence of an evolving microstructure in a 2.9 vol% fumed silica paraffin oil and polyisobutylene is demonstrated experimentally via rheological modeling during steady state large amplitude oscillatory shear flow. continuously evolving, rebuilding, breaking down the shown, correlated through rheology experiments, thixo-elastovisco-plastic modeling, small angle light scattering (SALS). All elements are then connected global, stochastic optimization algorithm that will provide parameter estimation with “best-fit” transient data using well-known Modified Delaware Thixotropic Model, allowing for comparison SALS results experimental values.