Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials

Detalhes bibliográficos
Autor(a) principal: Dias Filho, Newton L. [UNESP]
Data de Publicação: 2006
Outros Autores: Cardosob, Celso X. [UNESP], De Aquino, Hermes A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-50532006000500018
http://hdl.handle.net/11449/69173
Resumo: The relationship between the heat of polymerization (ΔH) and activation energy (Ea) parameters, obtained by differential scanning calorimetry (DSC) and the ratio of epoxy resin to hardener of the thermosetting materials based on an organic-inorganic hybrid epoxy resin (OG) was investigated. Activation energy (Ea) and heat of polymerization (ΔH) increased with an increasing OG content, up to 70 wt%. Further increase in OG content to 80wt% reduced Ea and ΔH. Dynamic mechanical analysis indicates that the maximum cross-link density is obtained at 83 wt% OG, whereas fracture toughness and tensile modulus mechanical properties are maximized at 70 wt% OG. ©2006 Sociedade Brasileira de Química.
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spelling Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materialsDifferential scanning calorimetryEpoxy resinNanocompositesSiloxaneSilsesquioxanesThe relationship between the heat of polymerization (ΔH) and activation energy (Ea) parameters, obtained by differential scanning calorimetry (DSC) and the ratio of epoxy resin to hardener of the thermosetting materials based on an organic-inorganic hybrid epoxy resin (OG) was investigated. Activation energy (Ea) and heat of polymerization (ΔH) increased with an increasing OG content, up to 70 wt%. Further increase in OG content to 80wt% reduced Ea and ΔH. Dynamic mechanical analysis indicates that the maximum cross-link density is obtained at 83 wt% OG, whereas fracture toughness and tensile modulus mechanical properties are maximized at 70 wt% OG. ©2006 Sociedade Brasileira de Química.Departamento de Física e Química Universidade Estadual Paulista, Av. Brasil, 56, Centro, 15385-000 Ilha Solteira- SPDepartamento de Física, Química e Biologia Universidade Estadual Paulista, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente-SPDepartamento de Física e Química Universidade Estadual Paulista, Av. Brasil, 56, Centro, 15385-000 Ilha Solteira- SPDepartamento de Física, Química e Biologia Universidade Estadual Paulista, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente-SPUniversidade Estadual Paulista (Unesp)Dias Filho, Newton L. [UNESP]Cardosob, Celso X. [UNESP]De Aquino, Hermes A. [UNESP]2014-05-27T11:22:00Z2014-05-27T11:22:00Z2006-10-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article935-943application/pdfhttp://dx.doi.org/10.1590/S0103-50532006000500018Journal of the Brazilian Chemical Society, v. 17, n. 5, p. 935-943, 2006.0103-5053http://hdl.handle.net/11449/6917310.1590/S0103-50532006000500018S0103-50532006000500018WOS:0002403512000182-s2.0-337495560592-s2.0-33749556059.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society1.4440,357info:eu-repo/semantics/openAccess2024-07-10T14:07:39Zoai:repositorio.unesp.br:11449/69173Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:00:20.895403Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
title Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
spellingShingle Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
Dias Filho, Newton L. [UNESP]
Differential scanning calorimetry
Epoxy resin
Nanocomposites
Siloxane
Silsesquioxanes
title_short Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
title_full Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
title_fullStr Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
title_full_unstemmed Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
title_sort Relationships between the curing conditions and some mechanical properties of hybrid thermosetting materials
author Dias Filho, Newton L. [UNESP]
author_facet Dias Filho, Newton L. [UNESP]
Cardosob, Celso X. [UNESP]
De Aquino, Hermes A. [UNESP]
author_role author
author2 Cardosob, Celso X. [UNESP]
De Aquino, Hermes A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Dias Filho, Newton L. [UNESP]
Cardosob, Celso X. [UNESP]
De Aquino, Hermes A. [UNESP]
dc.subject.por.fl_str_mv Differential scanning calorimetry
Epoxy resin
Nanocomposites
Siloxane
Silsesquioxanes
topic Differential scanning calorimetry
Epoxy resin
Nanocomposites
Siloxane
Silsesquioxanes
description The relationship between the heat of polymerization (ΔH) and activation energy (Ea) parameters, obtained by differential scanning calorimetry (DSC) and the ratio of epoxy resin to hardener of the thermosetting materials based on an organic-inorganic hybrid epoxy resin (OG) was investigated. Activation energy (Ea) and heat of polymerization (ΔH) increased with an increasing OG content, up to 70 wt%. Further increase in OG content to 80wt% reduced Ea and ΔH. Dynamic mechanical analysis indicates that the maximum cross-link density is obtained at 83 wt% OG, whereas fracture toughness and tensile modulus mechanical properties are maximized at 70 wt% OG. ©2006 Sociedade Brasileira de Química.
publishDate 2006
dc.date.none.fl_str_mv 2006-10-16
2014-05-27T11:22:00Z
2014-05-27T11:22:00Z
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/10.1590/S0103-50532006000500018
Journal of the Brazilian Chemical Society, v. 17, n. 5, p. 935-943, 2006.
0103-5053
http://hdl.handle.net/11449/69173
10.1590/S0103-50532006000500018
S0103-50532006000500018
WOS:000240351200018
2-s2.0-33749556059
2-s2.0-33749556059.pdf
url http://dx.doi.org/10.1590/S0103-50532006000500018
http://hdl.handle.net/11449/69173
identifier_str_mv Journal of the Brazilian Chemical Society, v. 17, n. 5, p. 935-943, 2006.
0103-5053
10.1590/S0103-50532006000500018
S0103-50532006000500018
WOS:000240351200018
2-s2.0-33749556059
2-s2.0-33749556059.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Chemical Society
1.444
0,357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 935-943
application/pdf
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_ 1808128884161380352

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