Zur analytischen Beschreibung des Füllstoffeinflusses auf das Fließverhalten von Kunststoff-Schmelzen |
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Authors: | B Hinkelmann |
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Institution: | (1) Deutsches Kunststoff-Institut, Schloßgartenstraße 6 R, D-6100 Darmstadt, Germany |
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Abstract: | From literature some representative equations have been compiled describing the influence of filler on the viscosity of polymer melts. By application of these on the experimental results obtained from GF-SAN it was found that the relative viscosity
R
, i.e. the ratio of the viscosities of the filled and unfilled melt, shows a pronounced dependence on the shear rate
but not on the shear stress. Defining
R
with constant and not with constant
(as it is usually done), an analytical approach is possible independent of
Further the influence of pressure, temperature and filler content on the zero-shear viscosity of filled polymer melts may be expressed by a modified Arrhenius equation. |
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Keywords: | Polymer melt glass fiber relative viscosity analytical approach |
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