-Newtonian polymer melt, viscosity could be explained by a function of the strain rate and temperature in equation (4) [ 21 ], η = m T γ ̇ n − 1 (4)
where m is the consistency index and n is the powerlaw index.
In our experiments, PEO
The aim of this work was to investigate the influence of several carboxymethylcellulose hydrocolloids addition on the rheological properties of whey model systems as well as sucrose & sorbitol & water solutions. Measurements were done by rotational viscosimeter, Brookfield DV-III at 20 °C. The rheological parameters were determined by Ostwald and Reiner™s power-law model. The results of variance analysis showed that all investigated sources of variation (model solution composition, type of hydrocolloids and freezing process) had a significant influence on the rheological parameter (consistency coefficient). Due to the interaction of hydrocolloid and whey proteins or minerals the viscosity of the model solutions prepared with ultrafiltrated whey dropped substantially. Freezing process increased the viscosity of whey solutions, while the viscosity of solutions prepared with water did not change significantly.
Authors:Mohammad Fahad, Richard Nagy, and Peter Fuleki
deformation if foamed asphalt mixtures and reported that resulting creep strains accumulations are good indicators of permanent deformations in pavements [ 14 ]. Creep powerlaw model in ABAQUS, in Eq. (1) , has been successfully employed to investigate the
Rheological models, Newtonian model ( Eq. 2 ), Powerlaw model ( Eq. 3 ), Bingham model ( Eq. 4 ), and Herschel–Bulkley model ( Eq. 5 ), were studied to find the rheological model best fitting the experimental data. Apparent