Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 105, Issue 3, Pages 805-809Publisher
SPRINGER
DOI: 10.1007/s10973-011-1381-4
Keywords
Self-healing; Reversible network; Thermoset coating; Diels-Alder
Funding
- 'Instituut ter bevordering van het Wetenschappelijk Onderzoek en de Innovatie van Brussel' (IWOIB)
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A self-healing material for coating applications was synthesized using the Diels-Alder (DA) reaction as cross-linking reaction. The built-in reversibility allows local mobility and rearrangements in the polymeric network, which is composed of a furan functionalized epoxy-amine and a bismaleimide. The self-healing material was characterized by physical-chemical means using Fourier Transform Infrared spectroscopy, thermogravimetric analysis (TG) and rapid heat-cool differential scanning calorimetry. It has been shown that the reversibility, as a result of a change in DA/retro-DA equilibrium, occurs in a temperature window ranging from ca. 80 to 150 A degrees C. The repeatability of the non-autonomous healing was checked by TG, showing no evaporation or degradation of the components involved in the temperature window of interest.
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