The measurement of the thixotropy of structured fluids such as suspensions, emulsions and polymeric solutions is performed with rotational rheometers.
It is based on the application of several shear rate (or shear stress) steps and on recording the corresponding time evolution of the shear viscosity or shear stress (or shear rate). In this way it is possible to study the kinetics of agglomeration of structured fluids.
Instruments available: