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Experimental validation of a tube based constitutive equationfor linear polymer melts with inter-chain tube pressure effect

Published online by Cambridge University Press:  02 April 2013

Rudy Valette ,
G. Boukellal ,
A. Durin  and
J.-F. Agassant

Abstract

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A polydisperse case of an entangled linear polymer melts constitutive equation wasstudied. This constitutive equation, proposed by S. Dhole et al. [J. Non-Newtonian FluidMech. 161 (2009) 10–18], based on the reptation theory and the tube model, was tested on apolystyrene in shear (capillary rheometry) and planar extension in a complex flow(fieldwise measurements in a contraction flow) for different level of strain rates. A goodquantitative prediction of all the set of experiments was obtained, using no adjustablenonlinear parameters.

Keywords

Polymer meltsconstitutive equationplanar elongational flowstube theoryinterchain pressure effectPolymères fondusloi de comportementécoulements d’élongation planethéorie du tubeeffets de pression inter-chaînes
Type
Research Article
Information
Mechanics & Industry , Volume 14 , Issue 1 , 2013 , pp. 79 - 84
Copyright
© AFM, EDP Sciences 2013

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