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Thermal Stability and Lifetime Prediction of an Epoxide Adhesive System

  • R. Tiefenthaller
  • R. Fluch
  • B. Strauß
  • S. Hild
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 247)

Abstract

Epoxide systems, with diglycidyl ether of bisphenol A as the most popular representative, are known for their outstanding thermal stability. Nevertheless, lifetime predictions are indispensable for many applications. Therefore, the change of mechanical properties of an epoxide adhesive system was analysed. The observed embrittlement of the system could be explained and shown by chemical degradation reactions. To determine the long-term stability accelerated testing methods had to be applied: Steel panels were bonded with a thin layer of the adhesive system and aged at elevated temperatures. Lifetime predictions were based on the adhesive strength, which can be evaluated by different methods like peeling or shearing tests. The lifetime was strongly depending on the chosen parameter for the adhesive strength. However, if only the time at the high temperature was calculated, cyclic thermal loads came to the same results as constant high temperature regimes.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • R. Tiefenthaller
    • 1
    • 2
  • R. Fluch
    • 2
  • B. Strauß
    • 2
  • S. Hild
    • 1
  1. 1.Institute of Polymer SciencesJohannes Kepler University LinzLinzAustria
  2. 2.voestalpine Stahl GmbHLinzAustria

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