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Squeeze film rheology of polymer melts: Determination of the characteristic flow curve
Author(s) -
Pham Hoang T.,
Meinecke Eberhard A.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070530301
Subject(s) - rheology , rheometry , materials science , capillary action , flow (mathematics) , polymer , constant (computer programming) , shear rate , shear flow , volumetric flow rate , composite material , mechanics , physics , computer science , programming language
The advantage of the constant‐speed squeeze film flow is that the shear rate is not constant but changes with gap height and position. This allows the rheological characterization of a material to be carried out in a shorter amount of experimentation time. A method for determining the characteristic flow curve is proposed. The characteristic flow curves obtained from squeeze film flow is compared with the curves obtained from capillary rheometry are presented. © 1994 John Wiley & Sons, Inc.

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