Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00289-021-03621-0 http://hdl.handle.net/11449/206353 |
Resumo: | The 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. |
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Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resinBiopolymersDental polymersNanofibersResinsStrengthThe 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.Institute of Chemistry Uberlândia Federal University (UFU), Santa Mônica CampusDepartment of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (Unesp), Rua Humaitá 1680Faculdade de Ciências Integradas Do Pontal Uberlândia Federal University (UFU)Department of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (Unesp), Rua Humaitá 1680Uberlândia Federal University (UFU)Universidade Estadual Paulista (Unesp)Silvério, Hudson AlvesLeite, Andressa Rosa Perin [UNESP]da Silva, Marcela Dantas Dias [UNESP]de Assunção, Rosana Maria NascimentoPero, Ana Carolina [UNESP]Pasquini, Daniel2021-06-25T10:30:38Z2021-06-25T10:30:38Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s00289-021-03621-0Polymer Bulletin.1436-24490170-0839http://hdl.handle.net/11449/20635310.1007/s00289-021-03621-02-s2.0-85105967633Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolymer Bulletininfo:eu-repo/semantics/openAccess2021-10-23T03:22:32Zoai:repositorio.unesp.br:11449/206353Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:23:31.715806Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
title |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
spellingShingle |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin Silvério, Hudson Alves Biopolymers Dental polymers Nanofibers Resins Strength |
title_short |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
title_full |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
title_fullStr |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
title_full_unstemmed |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
title_sort |
Poly (ethyl methacrylate) composites reinforced with modified and unmodified cellulose nanocrystals and its application as a denture resin |
author |
Silvério, Hudson Alves |
author_facet |
Silvério, Hudson Alves Leite, Andressa Rosa Perin [UNESP] da Silva, Marcela Dantas Dias [UNESP] de Assunção, Rosana Maria Nascimento Pero, Ana Carolina [UNESP] Pasquini, Daniel |
author_role |
author |
author2 |
Leite, Andressa Rosa Perin [UNESP] da Silva, Marcela Dantas Dias [UNESP] de Assunção, Rosana Maria Nascimento Pero, Ana Carolina [UNESP] Pasquini, Daniel |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Uberlândia Federal University (UFU) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Silvério, Hudson Alves Leite, Andressa Rosa Perin [UNESP] da Silva, Marcela Dantas Dias [UNESP] de Assunção, Rosana Maria Nascimento Pero, Ana Carolina [UNESP] Pasquini, Daniel |
dc.subject.por.fl_str_mv |
Biopolymers Dental polymers Nanofibers Resins Strength |
topic |
Biopolymers Dental polymers Nanofibers Resins Strength |
description |
The 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:30:38Z 2021-06-25T10:30:38Z 2021-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s00289-021-03621-0 Polymer Bulletin. 1436-2449 0170-0839 http://hdl.handle.net/11449/206353 10.1007/s00289-021-03621-0 2-s2.0-85105967633 |
url |
http://dx.doi.org/10.1007/s00289-021-03621-0 http://hdl.handle.net/11449/206353 |
identifier_str_mv |
Polymer Bulletin. 1436-2449 0170-0839 10.1007/s00289-021-03621-0 2-s2.0-85105967633 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polymer Bulletin |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129315992240128 |