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Waterborne polyurethane/Fe3O4-synthetic talc composites: synthesis, characterization, and magnetic properties

2018-05Journal article Restricted access
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dc.contributor.authorDos Santos, Leonardo
dc.contributor.authorLigabue, Rosane
dc.contributor.authorDumas, Angela
dc.contributor.authorLe Roux, Christophe
dc.contributor.authorMicoud, Pierre
dc.contributor.authorMeunier, Jean-François
dc.contributor.authorMartin, François
dc.contributor.authorCorvo, Marta C.
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorEinloft, Sandra
dc.date.accessioned2018-12-03T11:20:21Z
dc.date.available2018-12-03T11:20:21Z
dc.date.issued2018-05
dc.description.abstractNano-Fe3O4-synthetic talc gel was used as filler in the synthesis of waterborne polyurethane/Fe3O4-synthetic talc nanocomposites. This filler presents numerous edges (Si-O and Mg-O) and OH groups easily forming hydrogen bonds and polar interaction with water conferring hydrophilic character, consequently improving filler dispersion within a water-based matrix. Yet, the use of waterborne polyurethane (WPU) as matrix must be highlighted due to its environmentally friendly characteristics and low toxicity compared to solvent-based product. Fe3O4-synthetic talc-nanofillers were well dispersed into the polyurethane matrix even at high filler content as supported by XRD and TEM analyses. NMR indicates the interaction of filler OH groups with the matrix. For all nanocomposites, one can see a typical ferromagnetic behavior below Curie temperature (about 120 K) and a superparamagnetic behavior above this temperature. The use of Fe3O4-synthetic talc for obtaining magnetic nanocomposites resulted in improved materials with superior mechanical properties compared to solvent-based nanocomposites.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSANTOS, Leonardo M. dos; [et al] – Waterborne polyurethane/Fe3O4-synthetic talc composites: synthesis, characterization, and magnetic properties. Polymer Bulletin. ISSN 0170-0839. Vol. 75, N.º 5 (2018), pp 1915-1930pt_PT
dc.identifier.doi10.1007/s00289-017-2133-9pt_PT
dc.identifier.issn0170-0839
dc.identifier.issn1436-2449
dc.identifier.urihttp://hdl.handle.net/10400.21/9120
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationBEX 6547/15-0 - CAPESpt_PT
dc.relationPOCI-01-0145-FEDER-007688 - FCTpt_PT
dc.relation.publisherversionhttps://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=D18FJi2oN4XCx22sUrg&page=8&doc=76pt_PT
dc.subjectWaterborne polyurethanept_PT
dc.subjectNanocompositespt_PT
dc.subjectPhysical mixturept_PT
dc.titleWaterborne polyurethane/Fe3O4-synthetic talc composites: synthesis, characterization, and magnetic propertiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.citation.endPage1930pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1915pt_PT
oaire.citation.titlePolymer Bulletinpt_PT
oaire.citation.volume75pt_PT
oaire.fundingStream5876
person.familyNamedos Santos
person.familyNameLigabue
person.familyNameDumas
person.familyNameCorvo
person.familyNameMarques de Almeida
person.familyNameEinloft
person.givenNameLeonardo
person.givenNameRosane
person.givenNameAngela
person.givenNameMarta Cristina Parracho Cançado
person.givenNamePedro
person.givenNameSandra
person.identifier.ciencia-idBA1A-5C94-CA3A
person.identifier.ciencia-id0218-71B2-2DE0
person.identifier.orcid0000-0002-5618-5863
person.identifier.orcid0000-0002-7086-8820
person.identifier.orcid0000-0003-0058-8126
person.identifier.orcid0000-0003-0890-6133
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0003-1364-0325
person.identifier.ridB-4356-2009
person.identifier.ridG-1565-2012
person.identifier.scopus-author-id55578915000
person.identifier.scopus-author-id6602470713
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id6602323155
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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