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Numeric simulation of epoxy cure in molds

Kinetic parameters from microcalorimetry

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Abstract

Thermodynamic and kinetic parameters have been determined suitable for the numerical simulation of the curing reaction of the epoxy/anhydride based casting resin system Araldite CY 225/HY 225/filler. In particular, the decisive role of the heating rate on the evaluation of the kinetic parameters from dynamic DSC-experiments is discussed.

Zusammenfassung

Mit Hilfe der Mikrokalorimetrie wurden thermodynamische (Reaktionsenthalpien) und kinetische (Arrhenius-Konstanten, Reaktionsordnung) Parameter eines gefüllten Epoxid/Anhydrid-Giessharz-Systems (Araldit CY 225/HY 225/Quarzmehl) bestimmt.

Die Eignung dieser Parameter zur praxisrelevanten Simulation der HÄrtungsreaktion in Giessformen wird demonstriert. Es zeigt sich, dass die Heizrate im dynamischen DSC-Experiment bei der Bestimmung der kinetischen Parameter eine entscheidende Rolle spielt.

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References

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Authors and Affiliations

  1. Ciba-Geigy SA, Research Center Marly, CH-1701, Fribourg, Switzerland

    Ch. Irrgang & J. Vogt

Authors
  1. Ch. Irrgang
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  2. J. Vogt
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Additional information

We wish to thank Dr. P. Bujard, Ciba-Geigy SA, for the measurement of the thermal conductivity data, and Mrs. Emmi Stoisser for technical assistance.

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Irrgang, C., Vogt, J. Numeric simulation of epoxy cure in molds. Journal of Thermal Analysis 37, 1841–1849 (1991). https://doi.org/10.1007/BF01912215

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  • DOI: https://doi.org/10.1007/BF01912215

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