Influence of the isothermal cure temperature on the nanostructure and thermal properties of an epoxy layered silicate nanocomposite

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Título:	Influence of the isothermal cure temperature on the nanostructure and thermal properties of an epoxy layered silicate nanocomposite
Autor/a:	Shiravand, Fatemeh; Hutchinson, John M.; Calventus Solé, Yolanda
Otros autores:	Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química
Abstract:	The cure kinetics of triglycidyl p-amino phenol (TGAP) epoxy resin with a diamine (4,4-diamino diphenyl sulphone [DDS]), reinforced with montmorillonite (MMT), has been studied by differential scanning calorimetry. The isothermal cure reaction consists of two parts: a rapid intra-gallery reaction, attributed to homopolymerization of the TGAP catalyzed by the MMT and the extra-gallery cross-linking reaction of the TGAP with the DDS. Increasing cure temperature promotes the intra-gallery reaction, which should promote an exfoliated nanostructure; this is confirmed by transmission electron microscopy. These results indicate that this system (TGAP/DDS/MMT) is an excellent candidate for achieving exfoliated polymer-layered silicate nanocomposites and identifies a protocol for optimizing the degree of exfoliation.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Enginyeria dels materials -Clay minerals -Crosslinking (Polymerization) -Nanocomposites (Materials) -Nanostructures -Transmission electron microscopy -Crosslinking Clay minerals Curing Differential scanning calorimetry Epoxy resins Homopolymerization Isotherms Nanocomposites Nanostructures Phenols Transmission electron microscopy -Nanocompòsits (Materials) -Microscòpia electrònica de transmissió
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Tipo de documento:	Artículo - Versión publicada Artículo
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