The Effect of Surface Modification of Silica Microfillers in an Epoxy Matrix on the Thermo-mechanical Properties

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dc.contributor.author Olmos Díaz, Dania
dc.contributor.author Baselga Llidó, Juan
dc.contributor.author Mondragon, Iñaki
dc.contributor.author González Benito, Francisco Javier
dc.date.accessioned 2017-12-01T10:48:55Z
dc.date.available 2017-12-01T10:48:55Z
dc.date.issued 2008-07
dc.identifier.bibliographicCitation Olmos, D., Baselga, J., Mondragon, I. & González-Benito, J. (2008). The Effect of Surface Modification of Silica Microfillers in an Epoxy Matrix on the Thermo-mechanical Properties. Journal of Adhesion Science and Technology, 22 (13), pp. 1443-1459.
dc.identifier.issn 0169-4243
dc.identifier.uri http://hdl.handle.net/10016/26025
dc.description.abstract Thermo-mechanical and mechanical studies were carried out on silica filled epoxy composites. The effects of the filler with and without surfacemodification were studied. Silica particles were incorporated into the polymer matrix: (i) as received and (ii) surface treated with aminosilane coupling agents, namely 3-aminopropyltriethoxysilane (APTES) and 3-aminopropylmethyldiethoxysilane (APDES). The epoxy matrix consisted of poly (bisphenol A-co-epichlorohydrin) glycidyl end-capped (DGEBA) resin cured with ethylenediamine (EDA). The relaxation temperatures assigned to the glass transition temperatures (Tg) of the composites revealed that the filler both with and without surface treatment greatly affects the polymer network structure. It seems that on filling the epoxy-amine reactive mixture with silica a stoichiometric change in the epoxy/amine mixture occurs, which causes a decrease in the Tg. However, no significant differences were found for the different surface treatments. Assuming the systems were homogeneous a pseudo-fractional free volume was calculated from the superposition in the slow dynamics regime and good correlations between this parameter with the type of surface treatment and with the yield stress were found.
dc.description.sponsorship Authors gratefully acknowledge projects Nanoter (MAT2001347), Interfases (S-0505/MAT/0227) and MEC, Acciones Integradas (HH2006-0007) for financial support. Furthermore, the authors acknowledge the Universidad Carlos III de Madrid and the Universidad del País Vasco/Euskal Herriko Unibertsitatea for sup-porting Dr. J. González-Benito at the Departamento de Ingeniería Química y del M. Ambiente.
dc.format.extent 17
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Koninklijke Brill NV
dc.rights © Koninklijke Brill NV, Leiden, 2008 © Taylor & Francis
dc.subject.other Surface treatments
dc.subject.other Composites
dc.subject.other Epoxy
dc.subject.other Silica fillers
dc.title The Effect of Surface Modification of Silica Microfillers in an Epoxy Matrix on the Thermo-mechanical Properties
dc.type article
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.1163/156856108X305750
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. MAT2001347
dc.relation.projectID Gobierno de España. S-0505/MAT/0227
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1443
dc.identifier.publicationissue 13
dc.identifier.publicationlastpage 1459
dc.identifier.publicationtitle Journal of Adhesion Science and Technology
dc.identifier.publicationvolume 22
dc.identifier.uxxi AR/0000005620
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