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Hole Fraction Dependence on Linear Viscosity of PS, PP and ABS

  • F. Sahin-Dinc

Abstract

A linear dependency of zero shear, constant shear-rate and constant shear-stress viscosities with temperature and hole fraction (“thermo-occupancy” function) was derived for polyacrylonitrile-butadiene-styrene (ABS), polypropylene (PP) and polystyrene (PS). The relation of viscosity parameters, such as transmission coefficient and a measure of activation energy coefficient, with shear-rate and shear-stress was also investigated and some conclusions on the differences for the studied polymers were discussed. In particular, it was found that, for all materials, the derivative of logarithm of viscosities at zero shear, constant shear-rate and constant shear-stress decreases with decreasing rate with the hole fraction.


* Mail address: Fatma Sahin-Dinc, Karadeniz Technical University, Surmene Abdullah Kanca Vocational School, Machinery and Metal Technologies, Machinery Department, 61530, Camburnu, Surmene, Trabzon, Turkey, E-mail:

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Received: 2015-03-17
Accepted: 2015-08-12
Published Online: 2015-11-03
Published in Print: 2015-11-30

© 2015, Carl Hanser Verlag, Munich

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