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Thermal investigation of silicone rubber containing imide-siloxane copolymers

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Abstract

Dynamic mechanical thermal analysis and isothermal thermogravimetry yield useful information on the temperature dependence of the mechanical properties and thermal stability of silicone rubbers.

In the thermal mechanical relaxation spectra, only one characteristic phenomenon may be observed.

Isothermal thermogravimetry reveals that the thermal degradation is a first-order reaction. The experimental results provide a possibility for the calculation of overall (apparent) reaction rate constants characteristic of the thermal decomposition process, and for the calculation of half-time values.

Zusammenfassung

Dynamische mechanische Thermoanalyse und isotherme Thermogravimetrie lieferten nützliche Informationen über die Temperaturbhängigkeit der mechanischen Einenschaften und der Thermostabilität von Silikongummi.

Im thermischen mechanischen Relaxationsspektrum kann nur 1 charakteristische Erscheinung beobachtet werden.

Ausgehend von der isothermen Thermogravimetrie ergibt sich für den thermischen Abbau eine Reaktion erster Ordnung. Die experimentellen Resultate bringen die Möglichkeit zur Berechnung der Gesamt- (scheinbaren) Reaktionsgeschwindigkeitskonstante dersthermischen Zersetzungsprozesses und von Halbzeitwerten mit sich.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Technical University of Budapest, H-1521, Budapest, Hungary

    M. Ghadir, E. Zimonyi & J. Nagy

Authors
  1. M. Ghadir
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  2. E. Zimonyi
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  3. J. Nagy
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Ghadir, M., Zimonyi, E. & Nagy, J. Thermal investigation of silicone rubber containing imide-siloxane copolymers. Journal of Thermal Analysis 41, 1019–1029 (1994). https://doi.org/10.1007/BF02547192

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  • DOI: https://doi.org/10.1007/BF02547192

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