Rheological Properties of High Hygroscopic Profile Modification Gel

Experiments including apparent viscosity,thixotropy loop,creep and recovery,little oscillatory shear sweep and frequency sweep of high hygroscopic profile modification HSG sol were conducted.The apparent viscosity of HSG sol and thixotropy property increase with the increasing of copolymer concentration, and the HSG sol expresses positive thixotropy.The apparent viscosity of HSG sol decreases significantly with an increase in temperature.With the increasing of copolymer concentration,the elastic increases by creep and recovery test,linear elastic area widens and storage modulus,loss modulus and compound (dynamic) viscosity increase by little oscillatory shear sweep and frequency sweep tests.