Effects of chance of collision among particles on electro-rheological response

The electro-rheological (ER) responses of suspensions with cation exchange resin particles and polyaniline particles were measured under different experimental conditions such as the strength of applied electric field, the viscosity of continuous phase, the shear rate, and the volume fraction of particles. The ER response became faster as the strength of applied electric field, the shear rate,and the volume fraction of particles increased while it became slower as the viscosity of continuous phase increased, These results were discussed: in terms of the electrical and hydrodynamic interactions, as well as the chance of collision among particles.