Rheological properties of aqueous polyacrylamide/NaCl solutions

Abstract

Rheological properties of aqueous polyacrylamide-sodium chloride solutions are studied using RheoStress RS100. Polyacrylamide concentration was varied from 0.25 to 1.0% by weight, whereas sodium chloride ranged from 0.0 to 10 g L−1. This range of concentrations is suitable to study many of the polyacrylamide-sodium chloride rheological properties. Steady flow parameters, yield stress, thixotropic behavior, creep recovery, and dynamic tests are covered in this study. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 72: 1905–1912, 1999