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Anionic Polyacrylamide Polymers Effect on Rheological Behavior of Sodium-Montmorillonite Suspensions

Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agriculture Research Organization (ARO), P.O. Box 6, Bet Dagan 50250, Israel

View larger version (20K): [in a new window]   Fig. 1. Effect of anionic polyacrylamides of three molecular weights (3.5 x 103, 2 x 105, 8 x 106) at similar hydrolysis levels (85%) on the rheology behavior of Na-montmorillonite suspensions at concentration of 20 g L-1 and pH 7, in the absence of free electrolytes. NP = absence of PAM.

View larger version (21K): [in a new window]   Fig. 2. Effect of anionic polyacrylamides at various hydrolysis degree (15, 33, and 92%) of a similar molecular weights on the rheology behavior of Na-montmorillonite suspensions at concentration of 20 g L-1 and pH 7, in the absence of free electrolytes. NP = absence of PAM.