Abstract
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 °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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Acknowledgements
The ‘Instituut ter bevordering van het Wetenschappelijk Onderzoek en de Innovatie van Brussel’ (IWOIB) is gratefully acknowledged for financial support in the framework of the ‘Impulse Programme-Environment 2008’.
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Scheltjens, G., Brancart, J., De Graeve, I. et al. Self-healing property characterization of reversible thermoset coatings. J Therm Anal Calorim 105, 805–809 (2011). https://doi.org/10.1007/s10973-011-1381-4
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DOI: https://doi.org/10.1007/s10973-011-1381-4