INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
capítulos de libros
Título:
Self-Healing Polymer Coatings
Autor/es:
C. E. HOPPE; ALTUNA, F. I.
Libro:
Self-healing Materials and Their Allied Applications
Editorial:
Wiley-Scrivener
Referencias:
Año: 2021; p. 5 - 38
Resumen:
Traditional coatings made of thermosetting polymerscould not be healed or mended because of their cross-linked structure, sodamage implied the end of their service life cycle. This picture hasdramatically changed since the first self-healing systems reports, moment inwhich this ?disadvantage? of thermosets has started to vanish with thecontinuous increase in the availability of self-healing and recyclablethermosetting polymers. These advances constitute a breakthrough, as they wouldavoid replacement and catastrophic failure, encourage recycling andre-processing and prevent the generation of a considerable amount of waste,with obvious environmental and economic benefits. This chapter describes someof the more recent advances in the field of self-healing thermosetting polymerswith potential application as coatings. Extrinsic self-healing thermosets usean external agent to perform the healing whereas intrinsic ones require theintervention of an external trigger for repair damage. The first part of thechapter describes the work in extrinsic self-healing thermosets, and the secondpart in intrinsic ones, with emphasis on polymeric networks with dynamiccovalent bonds (DCBs). The most common strategies for the external triggeringof intrinsic self-healing polymers are also described. Finally, challenges arediscussed with the aim put in attaining the so expected end-user applications.