Self-healing materials for structural applications offer considerable practical benefits because they would allow to overcome the difficulties connected to damage diagnosis and repair. In this article, a process active at very low temperature for the repair of damaged structural material is shown. The self-repair function is based on the metathesis polymerization of ENB activated by Hoveyda-Grubbs' first generation catalyst. The self-healing epoxy mixture, containing the catalyst powder allows a cure temperature up to 180°C. Dynamic mechanical analysis was used to determine mechanical parameters. The autorepair composite shows a high modulus in a wide temperature range, a glass transition temperature at about 100°C and a self-healing efficiency of about 95%.

Self-healing materials for structural applications

GUADAGNO, Liberata;RAIMONDO, MARIALUIGIA;NADDEO, Carlo;MARICONDA, ANNALUISA
2014

Abstract

Self-healing materials for structural applications offer considerable practical benefits because they would allow to overcome the difficulties connected to damage diagnosis and repair. In this article, a process active at very low temperature for the repair of damaged structural material is shown. The self-repair function is based on the metathesis polymerization of ENB activated by Hoveyda-Grubbs' first generation catalyst. The self-healing epoxy mixture, containing the catalyst powder allows a cure temperature up to 180°C. Dynamic mechanical analysis was used to determine mechanical parameters. The autorepair composite shows a high modulus in a wide temperature range, a glass transition temperature at about 100°C and a self-healing efficiency of about 95%.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4443057
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