Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10570-022-05020-8 http://hdl.handle.net/11449/246679 |
Resumo: | The study of silane-functionalized microcrystalline cellulose as reinforcement in polymeric composite materials have been increasing. Since polymer composites are constantly subjected to stress and deformation over time an in-depth understanding of the creep and stress relaxation behavior and mechanisms can be determinative to its final application. This work aims to show a comprehensive study regarding the influence of MCC silane-functionalized (MCC-Si) on the creep and stress relaxation behavior of MCC-epoxy composites. Two distinct composites with 5% of microcrystalline cellulose with and without functionalization (MCC 5% and MCC 5%-Si) were compared with the neat epoxy resin. The dispersion of the microcrystalline cellulose through the matrix was observed by X-ray microtomography. Creep behavior was investigated and discussed using Findley and Weibull models while stress relaxation by the Eyring model. In addition to the classic analytic methods, the artificial neural network approach was applied (ANN) to the curves. The MCC-Si had shown only a small trend to agglomerate due to good chemical compatibility due to the functionalization. The microcrystalline cellulose prevented the rapid creep strain as observed in the neat epoxy resin while the MCC-Si demonstrated small deformation among the samples in the vitreous region. However, in the elastomeric region the same behavior for all samples was observed. A better fit was obtained using the ANN approach than the classic analytical methods due to the higher capacity to model non-linear and complex behavior. In summary, MCC-Si enhanced the creep and stress relaxation resistance at glassy region by effectively improving the interfacial adhesion. At higher temperatures, this effect was not observed. Graphical abstract: [Figure not available: see fulltext.] |
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Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy compositesAminosilaneCompositesCreepMicrocrystalline celluloseStress relaxationThe study of silane-functionalized microcrystalline cellulose as reinforcement in polymeric composite materials have been increasing. Since polymer composites are constantly subjected to stress and deformation over time an in-depth understanding of the creep and stress relaxation behavior and mechanisms can be determinative to its final application. This work aims to show a comprehensive study regarding the influence of MCC silane-functionalized (MCC-Si) on the creep and stress relaxation behavior of MCC-epoxy composites. Two distinct composites with 5% of microcrystalline cellulose with and without functionalization (MCC 5% and MCC 5%-Si) were compared with the neat epoxy resin. The dispersion of the microcrystalline cellulose through the matrix was observed by X-ray microtomography. Creep behavior was investigated and discussed using Findley and Weibull models while stress relaxation by the Eyring model. In addition to the classic analytic methods, the artificial neural network approach was applied (ANN) to the curves. The MCC-Si had shown only a small trend to agglomerate due to good chemical compatibility due to the functionalization. The microcrystalline cellulose prevented the rapid creep strain as observed in the neat epoxy resin while the MCC-Si demonstrated small deformation among the samples in the vitreous region. However, in the elastomeric region the same behavior for all samples was observed. A better fit was obtained using the ANN approach than the classic analytical methods due to the higher capacity to model non-linear and complex behavior. In summary, MCC-Si enhanced the creep and stress relaxation resistance at glassy region by effectively improving the interfacial adhesion. At higher temperatures, this effect was not observed. Graphical abstract: [Figure not available: see fulltext.]University of Caxias do Sul (UCS/PGPROTEC), Francisco Getúlio Vargas Street, RSMantova Indústria de Tubos Plásticos Ltda, Isidoro Fadanelli Street, RSSão Paulo State University (UNESP), Ariberto Pereira da Cunha Street, SPSchool of Energy Materials Mahatma Gandhi University, KeralaUMR CNRS 6027 Univ. Bretagne Sud IRDLSão Paulo State University (UNESP), Ariberto Pereira da Cunha Street, SPUniversity of Caxias do Sul (UCS/PGPROTEC)Mantova Indústria de Tubos Plásticos LtdaUniversidade Estadual Paulista (UNESP)Mahatma Gandhi UniversityIRDLNeves, Roberta MottaOrnaghi, Heitor LuizAlves, Fillip Cortat [UNESP]Zattera, Ademir JoséTom, MilantaLal, Hiran MayookhUthaman, AryaThomas, Sabu2023-07-29T12:47:35Z2023-07-29T12:47:35Z2023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2197-2216http://dx.doi.org/10.1007/s10570-022-05020-8Cellulose, v. 30, n. 4, p. 2197-2216, 2023.1572-882X0969-0239http://hdl.handle.net/11449/24667910.1007/s10570-022-05020-82-s2.0-85146566239Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCelluloseinfo:eu-repo/semantics/openAccess2023-07-29T12:47:35Zoai:repositorio.unesp.br:11449/246679Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:21:48.612172Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
title |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
spellingShingle |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites Neves, Roberta Motta Aminosilane Composites Creep Microcrystalline cellulose Stress relaxation |
title_short |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
title_full |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
title_fullStr |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
title_full_unstemmed |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
title_sort |
Creep and stress relaxation behavior of functionalized microcrystalline cellulose/epoxy composites |
author |
Neves, Roberta Motta |
author_facet |
Neves, Roberta Motta Ornaghi, Heitor Luiz Alves, Fillip Cortat [UNESP] Zattera, Ademir José Tom, Milanta Lal, Hiran Mayookh Uthaman, Arya Thomas, Sabu |
author_role |
author |
author2 |
Ornaghi, Heitor Luiz Alves, Fillip Cortat [UNESP] Zattera, Ademir José Tom, Milanta Lal, Hiran Mayookh Uthaman, Arya Thomas, Sabu |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
University of Caxias do Sul (UCS/PGPROTEC) Mantova Indústria de Tubos Plásticos Ltda Universidade Estadual Paulista (UNESP) Mahatma Gandhi University IRDL |
dc.contributor.author.fl_str_mv |
Neves, Roberta Motta Ornaghi, Heitor Luiz Alves, Fillip Cortat [UNESP] Zattera, Ademir José Tom, Milanta Lal, Hiran Mayookh Uthaman, Arya Thomas, Sabu |
dc.subject.por.fl_str_mv |
Aminosilane Composites Creep Microcrystalline cellulose Stress relaxation |
topic |
Aminosilane Composites Creep Microcrystalline cellulose Stress relaxation |
description |
The study of silane-functionalized microcrystalline cellulose as reinforcement in polymeric composite materials have been increasing. Since polymer composites are constantly subjected to stress and deformation over time an in-depth understanding of the creep and stress relaxation behavior and mechanisms can be determinative to its final application. This work aims to show a comprehensive study regarding the influence of MCC silane-functionalized (MCC-Si) on the creep and stress relaxation behavior of MCC-epoxy composites. Two distinct composites with 5% of microcrystalline cellulose with and without functionalization (MCC 5% and MCC 5%-Si) were compared with the neat epoxy resin. The dispersion of the microcrystalline cellulose through the matrix was observed by X-ray microtomography. Creep behavior was investigated and discussed using Findley and Weibull models while stress relaxation by the Eyring model. In addition to the classic analytic methods, the artificial neural network approach was applied (ANN) to the curves. The MCC-Si had shown only a small trend to agglomerate due to good chemical compatibility due to the functionalization. The microcrystalline cellulose prevented the rapid creep strain as observed in the neat epoxy resin while the MCC-Si demonstrated small deformation among the samples in the vitreous region. However, in the elastomeric region the same behavior for all samples was observed. A better fit was obtained using the ANN approach than the classic analytical methods due to the higher capacity to model non-linear and complex behavior. In summary, MCC-Si enhanced the creep and stress relaxation resistance at glassy region by effectively improving the interfacial adhesion. At higher temperatures, this effect was not observed. Graphical abstract: [Figure not available: see fulltext.] |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:47:35Z 2023-07-29T12:47:35Z 2023-03-01 |
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/s10570-022-05020-8 Cellulose, v. 30, n. 4, p. 2197-2216, 2023. 1572-882X 0969-0239 http://hdl.handle.net/11449/246679 10.1007/s10570-022-05020-8 2-s2.0-85146566239 |
url |
http://dx.doi.org/10.1007/s10570-022-05020-8 http://hdl.handle.net/11449/246679 |
identifier_str_mv |
Cellulose, v. 30, n. 4, p. 2197-2216, 2023. 1572-882X 0969-0239 10.1007/s10570-022-05020-8 2-s2.0-85146566239 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cellulose |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2197-2216 |
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_ |
1808129059119431680 |