A comprehensive study of the rheological properties of aqueous polyacrylamide 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 rheol
Rheological properties of aqueous polyacrylamide/NaCl solutions
β Scribed by Mamdouh T. Ghannam
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 158 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
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 Οͺ1 . 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.
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Surface tension of the polyacrylamide solution was measured as a function of the polyacrylamide concentration (0 -1000 gm/m 3 ) and temperature (10 -60Β°C). The static contact angles of the polyacrylamide solutions in the range of 0 -1000 gm/m 3 were reported on the polyvinyl chloride and Teflon subs