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Study of the thermal degradation of bioactive sol-gel coatings for the optimization of its curing process

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorHernández-Escolano, M.es
dc.contributor.authorRamis, X.es
dc.contributor.authorJiménez Morales, Antoniaes
dc.contributor.authorJuan-Díaz, M.es
dc.contributor.authorSuay, J.es
dc.date.accessioned2015-05-04T11:21:07Z
dc.date.available2015-05-04T11:21:07Z
dc.date.issued2012-02
dc.description.abstractA set of materials has been prepared by sol-gel process containing different quantities of hydroxyapatite (0, 2.5 and 5% HAp w/w) using as silica precursors glycidyloxypropyltrimethoxysilane (GPTMS) and triethoxyvinylsilane (VTES). In order to optimize the curing process to obtain sintherized systems (inorganic network) or hybrid systems (organic&-inorganic) a TG and FTIR studies have been developed and degradation kinetic triplet parameters were obtained (the activation energy, pre-exponential factor, and function of degree of conversion). The kinetic study was analyzed by means of an integral isoconversional non-isothermal procedure (model free), and the kinetic model was determined by the Coats&-Redfern method and through the compensation effect (IKR). All the systems followed the n = 6 kinetic model. The addition of HAp increases the thermal stability of the systems. The isothermal degradation was simulated from non-isothermal data, and the curing process could be defined to obtain the two types of materials. Temperature under 250 °C allows the formation of hybrids networks.en
dc.description.statusPublicadoes
dc.format.extent10
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationJournal of Thermal Analysis and Calorimetry (2012). 107(2), 499-508en
dc.identifier.doi10.1007/s10973-011-1553-2
dc.identifier.issn1388-6150 (print)
dc.identifier.issn1572-8943 (online)
dc.identifier.publicationfirstpage499
dc.identifier.publicationissue2
dc.identifier.publicationlastpage508
dc.identifier.publicationtitleJournal of Thermal Analysis and Calorimetryen
dc.identifier.publicationvolume107
dc.identifier.urihttps://hdl.handle.net/10016/20587
dc.identifier.uxxiAR/0000009707
dc.language.isoengen
dc.publisherElsevieren
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s10973-011-1553-2es
dc.rights© 2011 Akadémiai Kiadó. Springer Netherlandsen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaMaterialeses
dc.subject.otherSol gelen
dc.subject.otherHApen
dc.subject.otherVTESen
dc.subject.otherGPTMSen
dc.subject.otherKineticsen
dc.titleStudy of the thermal degradation of bioactive sol-gel coatings for the optimization of its curing processen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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