Intrinsic self-healing epoxies and polyurethanes containing D-A adducts, in addition to conventional epoxy and isocyanate precursors, have been prepared. The recovery capability of the resins have been verified by means of morphological observation, micromechanical and optical analysis. The fracture rims, micro-cracks and scratches were evident before treatment, while the defects disappear after thermal healing, resulting in recovered material. Likewise, nanoindentation and brightness measurements showed recovery ability, promoted by suitable heat treatments.
Thermally induced self-healing capability of epoxy and polyurethane resins
Dello Iacono S.
Primo
;Martone A.Secondo
;Giordano M.;Amendola E.Ultimo
2016
Abstract
Intrinsic self-healing epoxies and polyurethanes containing D-A adducts, in addition to conventional epoxy and isocyanate precursors, have been prepared. The recovery capability of the resins have been verified by means of morphological observation, micromechanical and optical analysis. The fracture rims, micro-cracks and scratches were evident before treatment, while the defects disappear after thermal healing, resulting in recovered material. Likewise, nanoindentation and brightness measurements showed recovery ability, promoted by suitable heat treatments.File in questo prodotto:
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