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dc.contributor | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
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dc.contributor | Universitat Politècnica de Catalunya. TERFIQ - Grup de Termodinàmica i Fisico-Química |
dc.contributor.author | Hutchinson, John M. |
dc.contributor.author | Shiravand, Fatemeh |
dc.contributor.author | Calventus Solé, Yolanda |
dc.date | 2012-09-05 |
dc.identifier.citation | Hutchinson, J.M.; Shiravand, F.; Calventus, Y. Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites. "Journal of applied polymer science", 05 Setembre 2012, vol. 128, núm. 5, p. 2961-2970. |
dc.identifier.citation | 0021-8995 |
dc.identifier.citation | 10.1002/app.38452 |
dc.identifier.uri | http://hdl.handle.net/2117/19525 |
dc.description.abstract | Achieving a high degree of exfoliation in epoxy-based polymer layered silicate (PLS) nanocomposites is crucial to their successful industrial application, but has hitherto proved elusive. In this work, a system is presented which shows significant promise in this respect. The isothermal cure of PLS nanocomposites based upon a tri-functional epoxy resin (TGAP) has been studied by DSC, and displays two exothermic peaks. The first peak, very rapid, relates to a homopolymerization reaction within the intra-gallery regions, while the second peak reflects the bulk crosslinking reaction. The occurrence of the intra-gallery reaction before the bulk reaction enhances the degree of exfoliation in the cured nanocomposite. Furthermore, pre-conditioning the resin/clay mixture before adding the curing agent and effecting the isothermal cure also allows a greater extent of intra-gallery reaction to occur before the extra-gallery epoxy-amine reaction. Consequently, this system results in a high degree of exfoliation, as revealed by transmission electron microscopy. |
dc.description.abstract | Peer Reviewed |
dc.language.iso | eng |
dc.relation | http://onlinelibrary.wiley.com/doi/10.1002/app.38452/abstract |
dc.rights | info:eu-repo/semantics/openAccess |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject | Nanocomposites (Materials) |
dc.subject | Crosslinking (Polymerization) |
dc.subject | Thermosetting composites |
dc.subject | composites |
dc.subject | crosslinking |
dc.subject | differential scanning calorimetry (DSC) |
dc.subject | microscopy |
dc.subject | thermosets |
dc.subject | Nanocompòsits (Materials) |
dc.title | Intra- and extra-gallery reactions in tri-functional epoxy polymer layered silicate nanocomposites |
dc.type | info:eu-repo/semantics/publishedVersion |
dc.type | info:eu-repo/semantics/article |