چكيده لاتين :
AHaake viscometer was used for viscosity measurements of aqueous polyvinyl
alcohol mixtures at temperatures of 288, 298, and 308 K. It was observed that at
low concentration 01 polyvinyl alcohol, variations 01 the measured shear stress (1)
versus shear rate (y) were linear and therefore, the Newtonian behaviour of the studied
mixtures is considered. The modified Eyring viscosity model previously proposed by the
authors were used to test the measured data for aqueous polyvinyl alcohol mixtures. It
was shown that the model is well capable to fit the data and the parameters, of the modle
are evaluated.
