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Self-healing materials for structural applications

Authors

  • L. Guadagno,

    1. Dipartimento di Ingegneria Industriale, Università di Salerno, Salerno, Italy
    2. NANO_MATES, Research Centre for NANOMAterials and nanoTEchnology at Salerno University, Università di Salerno, Salerno, Italy
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  • M. Raimondo,

    Corresponding author
    1. Dipartimento di Ingegneria Industriale, Università di Salerno, Salerno, Italy
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  • C. Naddeo,

    1. Dipartimento di Ingegneria Industriale, Università di Salerno, Salerno, Italy
    2. NANO_MATES, Research Centre for NANOMAterials and nanoTEchnology at Salerno University, Università di Salerno, Salerno, Italy
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  • P. Longo,

    1. NANO_MATES, Research Centre for NANOMAterials and nanoTEchnology at Salerno University, Università di Salerno, Salerno, Italy
    2. Dipartimento di Chimica e Biologia, Università di Salerno, Salerno, Italy
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  • A. Mariconda

    1. Dipartimento di Chimica e Biologia, Università di Salerno, Salerno, Italy
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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%. POLYM. ENG. SCI., 54:777–784, 2014. © 2013 Society of Plastics Engineers

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