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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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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

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.

Keywords: dispersed and polymer systems, non-Newtonian flow, generalized flow equation, linearization, reduced coordinates

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