the effects of shear rate on the intrinsic viscosity measurement of partiallyHydrolysed Polyacrylamide (HPAM) in salt solution were studied with homemade multi-bulb viscometer and low shear rate rheometer. The critical shear rate of HPAM in saltsolution for high molecular weight HPAM was determined. A low shear rate capillaryviscometer was designed in which the [η] approached to value at zero shear rate can beobtained for HPAM-salt system. The effect of molecular weight on shear rate dependenceof viscosity was also studied.
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In this paper
the effects of shear rate on the intrinsic viscosity measurement of partiallyHydrolysed Polyacrylamide (HPAM) in salt solution were studied with homemade multi-bulb viscometer and low shear rate rheometer. The critical shear rate of HPAM in saltsolution for high molecular weight HPAM was determined. A low shear rate capillaryviscometer was designed in which the [η] approached to value at zero shear rate can beobtained for HPAM-salt system. The effect of molecular weight on shear rate dependenceof viscosity was also studied.
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