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Assessment of the mechanical properties of nanoclays enhanced low Tg epoxy resins

2014-08-31Artigo científico Acesso restrito
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datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorFerreira, J. A. M.
dc.contributor.authorReis, P. N. B.
dc.contributor.authorCosta, J. D. M.
dc.contributor.authorCapela, C.
dc.date.accessioned2026-05-27T14:10:21Z
dc.date.available2026-05-27T14:10:21Z
dc.date.issued2014-08-31
dc.description.abstractThe mechanical properties of the nanocomposites are dependent, not only of the clays content but, also, of the resin type and manufacturing process. In this context, the present study intends to develop a systematic study involving a low glass transition temperature (Tg) and low permeability epoxy resin (SR 1500 and the hardener SD 2503) with a commercially Nanomer I30 E nanoclays. Two dispersion processes were compared (direct (DM) and indirect method (IDM)) in terms of mechanical properties, as well as the influence of nanoclay content and hydro aging effect. It was possible to observe that the composites obtained by the indirect method present lower mechanical properties than the neat resin because there is residual acetone. For DM composites the tensile strength, fracture toughness and the specific energy absorbed by impact decreases with the reinforcement content, caused by particle agglomerates. Elastic modulus, at 25 °C, increases significantly and Tg increases slightly with the addition of nanoclays. Hydro aging promotes a progressive decreasing of the tensile strength and fracture toughness, with the clay content, reaching about 15 % and 7 %, respectively, for 6 wt% of nanoclays. On the other hand, a small increasing on specific energy absorbed was observed.eng
dc.description.sponsorshipThe authors thank Portuguese Foundation to Science and Technology for funding this work, Project nº PTDC/EMEPME/103622/2008 co-financed by FEDER, through the Operational Factors for Competitiveness Programme of the QREN with reference COMPETE: FCOMP-01-0124-FEDER-010249.
dc.identifier.citationFerreira, J. A. M., Reis, P. N. B., Costa, J. D. M., & Capela, C. (2014). Assessment of the Mechanical Properties of Nanoclays Enhanced Low Tg Epoxy Resins. Fibers and Polymers, 15(8), 1677-1684. https://doi.org/10.1007/s12221-014-1677-7
dc.identifier.doi10.1007/s12221-014-1677-7
dc.identifier.issn1229-9197
dc.identifier.issn1875-0052
dc.identifier.urihttp://hdl.handle.net/10400.8/16356
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Nature
dc.relation.hasversionhttps://link.springer.com/article/10.1007/s12221-014-1677-7
dc.relation.ispartofFibers and Polymers
dc.rights.uriN/A
dc.subjectMechanical properties
dc.subjectMechanical testing
dc.subjectNano-structures
dc.subjectPolymer-matrix composites
dc.titleAssessment of the mechanical properties of nanoclays enhanced low Tg epoxy resinseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1684
oaire.citation.issue8
oaire.citation.startPage1677
oaire.citation.titleFibers and Polymers
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCapela
person.givenNameCarlos
person.identifier.ciencia-id9B1E-6857-3D6B
person.identifier.orcid0000-0003-3334-4945
person.identifier.ridG-6395-2016
person.identifier.scopus-author-id7801358401
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514

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