Effect of surfactant to rheological property of polymer solution

The effect of surfactant to rheological property of HPAM solution was studied.The results showed that the change of viscosity was not obvious as adding OP-10,and the apparent viscosity decreased as adding SDBS.The less degree of hydrolysis is,the more obvious it decreased.And there is no obvious connection between the change of solution viscosity and surfactant crit micelle concentration.