The aqueous solutions of guar gum and its hydroxypropyl (HP) and sodium carboxymethyl (sod CM) derivatives are pseudoplastic, and the transition from Newtonian t o pseudoplastic occurs in the low-shear-rate range a t the concentrations of interest to industries. The flow properties of these polysacc
Rheological properties of Hydroxypropyl Guar (HPG) slurries
β Scribed by Subhash N. Shah
- Publisher
- American Institute of Chemical Engineers
- Year
- 1993
- Tongue
- English
- Weight
- 761 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0001-1541
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## Abstract Guar gum is a naturally occurring galactomannan, which is extremely hydrophilic in nature. Hydroxypropyl guar gum (HPG) was subjected to acetylation using acetic anhydride and pyridine. The effect of the reduction in the hydrophilic nature of the polymer on its filler properties was stu
Slurries of finely milled Eastern Canadian peat in No. 2 fuel oil were prepared and their flow characteristics studied by measuring viscosities, sedimentation (S.R.) and drain times as functions of per cent peat loading, peat moisture content, concentration of stabilizing additive, pH, and slurry bl
## Abstract Semiβdilute solutions of hydroxypropyl guar gum (HPGG), the most widely used derivative of naturally occurring guar galactomannan, were investigated with respect to their viscosity, yield stress and thixotropy. It was found that the shearβdependent viscosity behaviour under various HPGG