THE ELECTRORHEOLOGICAL PROPERTIES OF POLYPYRROLE SUSPENSIONS

In this article, the electrorheological (ER) suspensions containing po lypyrrole particles in silicon oil are prepared. These suspensions' ER properties, in particular their conductive property and the influenci ng factors, such as particle conductivity, field strength, concentrati on and shear rate, are investigated experimentally. The results show t hat the suspension can display significant ER effects only when the pa rticle conductivity is within a certain range, and the suspension's ER effect increases with particle concentration and field strength, but decreases with the increasing shear rate. The suspension's current den sity increases with particle concentration, particle conductivity and field strength, while decreases with shear rate.