Experimental Determination of the Elongational Viscosity of Polymer Solutions

[+] Author and Article Information
A. E. Chavez, O. Manero

Instituto de Investigaciones en Materiales, UNAM, AP 70-360, Mexico DF 04510

H. Y. Bao, R. K. Gupta

Department of Chemical Engineering, State University of New York, Buffalo NY 14260

Appl. Mech. Rev 44(11S), S46-S50 (Nov 01, 1991) doi:10.1115/1.3121372 History: Online April 30, 2009


A comparative study is performed between elongational flow data obtained from fiber spinning and a numerical scheme based on the expressions derived from an anisotropic FENE dumbbell model, with conformation-dependent hydrodynamic friction, coupled with a differential momentum balance made along the spinning filament. Extensional flow data was obtained by using the Gupta-Sridhar extensional viscometer. The test fluid was an aqueous solution of a copolymer of sodium acrylate and acrylamide (Alcomer 120). From the information obtained by this comparison, we assess the influence of preshearing and other factors on the rheological behavior of polymer solutions using this technique.

Copyright © 1991 by American Society of Mechanical Engineers
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