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Calibration and use of the Epprecht Rheomat

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Summary

This paper deals with the calibration and use of an Epprecht Rheomat with particular reference to non Newtonian liquids. A method of calculating accurate rates of shear for non-Newtonian flow is derived using theEuler-Maclaurin sum formula. Some examples are given of the calculation of shear of poly vinyl chlorideplasticiser suspensions.

Zusammenfassung

Die vorliegende Abhandlung befaßt sich mit der Eichung und dem Gebrauch eines Epprecht-Rheomats mit besonderer Hinsicht auf nicht-Newtonische Flüssigkeiten.

Ein Verfahren zur exakten Berechnung von Scherwerten für nicht-Newtonische Flüssigkeiten läßt sich aus derEuler-Maclaurinschen Summenformel ableiten.

Einige Beispiele zur Berechnung von Scherwerten für Weichmacher von Polyvinylchlorid sind beigefügt.

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References

  1. Krieger, I. M. andH. Elrod, J. Appl. Phys.24, 134 (1953).

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  2. Van Wazer, J. R., J. W. Lyons, K. Y. Kim andR. E. Colwell, Viscosity and Flow Measurement (New York 1963).

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Author notes

  1. G. Hartley, W. R. Moore & G. P. Pearson

    Present address: School of Polymer Science, University of Bradford, England

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    1. G. Hartley
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    2. W. R. Moore
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    3. G. P. Pearson
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    Hartley, G., Moore, W.R. & Pearson, G.P. Calibration and use of the Epprecht Rheomat. Rheol Acta 8, 184–187 (1969). https://doi.org/10.1007/BF01984656

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    • DOI: https://doi.org/10.1007/BF01984656

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