Abstract
Aqueous solutions of cetylrimethyl ammonium bromide and sodium salicylate form wormlike micelles and show shear-induced structure, which causes the change in rheological properties. When a shear-induced structure occurs, white turbidity appears in a flow channel and viscosity changes depending on it. We researched the time required for the emergence of white turbidity, its moving speed, and their dependence of shear rate. As a result, the required time of the emergence of white turbidity depends on only the shear rate independent of the position of measuring point. On the other hand, the moving speed depends on both the position of measurement point and the shear rate.
