Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin

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dc.contributor.authorSilvério, Hudson Alves
dc.contributor.authorLeite, Andressa Rosa Perin [UNESP]
dc.contributor.authorda Silva, Marcela Dantas Dias [UNESP]
dc.contributor.authorde Assunção, Rosana Maria Nascimento
dc.contributor.authorPero, Ana Carolina [UNESP]
dc.contributor.authorPasquini, Daniel
dc.contributor.institutionUberlândia Federal University (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-06-25T10:30:38Z
dc.date.available2021-06-25T10:30:38Z
dc.date.issued2021-01-01
dc.description.abstractThe aim of this study was to characterize cellulose nanocrystals (CNC) used to the preparation of nanocomposites and evaluate the influence of incorporating the CNC on flexural strength of a denture rebase resin. CNC were isolated from wood pulp by acid hydrolysis. In addition, maleic anhydride was used to superficially modify the CNCs. The modified (CNCmod) and unmodified nanocrystals (CNC) were suitably characterized and used separately as a reinforcement element in situ in a denture rebase resin consisting of poly ethyl methacrylate, at 0% (control group), 0.25%, 0.5%, 0.75% and 1%. The flexural strength of the groups was measured using a 3-point bending test with EMIC DL 2000 machine. AFM images showed that CNC and CNCmod samples presented nanoparticles with typical acicular shape and similar dimensions. A significant improvement of the flexural strength was obtained, even at low load levels, especially considering the nanoparticles with chemically modified surface. The incorporation of both modified and unmodified CNCs represents an alternative that can maximize the mechanical properties of acrylic resins and their respective dental applications.en
dc.description.affiliationInstitute of Chemistry Uberlândia Federal University (UFU), Santa Mônica Campus
dc.description.affiliationDepartment of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (Unesp), Rua Humaitá 1680
dc.description.affiliationFaculdade de Ciências Integradas Do Pontal Uberlândia Federal University (UFU)
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (Unesp), Rua Humaitá 1680
dc.identifierhttp://dx.doi.org/10.1007/s00289-021-03621-0
dc.identifier.citationPolymer Bulletin.
dc.identifier.doi10.1007/s00289-021-03621-0
dc.identifier.issn1436-2449
dc.identifier.issn0170-0839
dc.identifier.scopus2-s2.0-85105967633
dc.identifier.urihttp://hdl.handle.net/11449/206353
dc.language.isoeng
dc.relation.ispartofPolymer Bulletin
dc.sourceScopus
dc.subjectBiopolymers
dc.subjectDental polymers
dc.subjectNanofibers
dc.subjectResins
dc.subjectStrength
dc.titlePoly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resinen
dc.typeArtigo
unesp.author.orcid0000-0002-0203-2386[5]

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