Rheological Properties of Aqueous Polyacrylamide Solutions

摘要

A comprehensive study of the rheological properties of aqueous polyacryl amide solutions was carried out. A RheoStress RS100 Haake rheometer was used in the measurements. The concentration of polyacrylamide ranged from 0.25 to 1.0% by weight. This range is sufficiently wide to cover many of the rheological features of polyacrylamide in the lower range of concentration. The study included measurements of steady shear flow parameters,transient shear stress response,yield stress,thixotropic behavior, creep recovery, dynamic responses,and temperature effects in the range 10-50 deg C.