Abstract
In this study, rheological properties of two gums, sodium alginate (Alg) and hydroxypropyl cellulose (HPC) in 5 concentration levels were studied. Total concentration of gums in solution was 0.1% (w/v) and different gums ratios (100% (Alg), 75% (Alg) and 25% HPC, 50% (Alg) and 50% (HPC), 25% (Alg) and 75% (HPC), and 100% (HPC)) were prepared. Measurements were carried out at 25˚C. Consequently the synergistic effect of these gums in different pH values (3, 5 and 7) in 0.1 %( w/v) concentration was investigated. Obtained data indicated that dispersions which contain these polymers showed shear thickening behavior as mention in the text.
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