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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2015, 15 (1), 47—55.
Non-Newtonian Flow of Structured Systems. XIV. Viscosity Curves in Reduced Coordinates
E. A. Kirsanov, Yu. N. Timoshin
Author affiliations Moscow State Region Socio-Humanitarian Institute,
30 Zelenaya St., Kolomna, Moscow Region, 140411, Russia
Abstract Reduced coordinates are often used for experimental data linearization. Rheological data are approximated by a straight line on a certain range of shear rate or shear stress. Approximate form of generalized flow equation makes it possible to define linear dependence on the middle range in the root coordinates η1/2 – τ1/2. The possibility of linearization of the rheological data for molten polystyrene, polypropylene, polyethylene, a polymer solution, an aqueous suspension of polyvinyl acetate is shown.