Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents

Autores
Nohales, Andres; Solar, Lorena; Porcar, Iolanda; Vallo, Claudia Ines; Gómez, Clara M.
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A bisphenol A-based epoxy resin was modified with 5 wt% organically modified sepiolite (Pangel B40) and thermally cured using two different curing agents: an aliphatic diamine (Jeffamine D230, D230) and a cycloaliphatic diamine (3DCM). The morphology of the cured materials was established by scanning and transmission electron microscopy analysis. The thermal stability, thermo-mechanical properties, and flexural behaviour of the sepiolite-modified matrices were evaluated and compared with the corresponding neat matrix. The initial thermal decomposition temperature did not change with the addition of sepiolite. The flexural modulus of the epoxy matrix slightly increases by the incorporation of the organophilic sepiolite. The flexural strength of the sepiolite modified resin cured with D230 increased by a 10% while the sepiolite modified resin cured with 3DCM resulted in a lower flexural strength compared with the unmodified resin. The reduced flexural strength was attributed to the stress concentrations caused by the sepiolite modifier, which rendered the resins more brittle.
Fil: Nohales, Andres. Universidad de Valencia; España
Fil: Solar, Lorena. Universidad de Valencia; España
Fil: Porcar, Iolanda. Universidad de Valencia; España
Fil: Vallo, Claudia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Gómez, Clara M.. Universidad de Valencia; España
Materia
Composites
Epoxy
Sepiolite
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/76147
Acceder
id CONICETDig_1225243dbe91971ec709b973a05c50bc
oai_identifier_str oai:ri.conicet.gov.ar:11336/76147
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agentsNohales, AndresSolar, LorenaPorcar, IolandaVallo, Claudia InesGómez, Clara M.CompositesEpoxySepiolitehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A bisphenol A-based epoxy resin was modified with 5 wt% organically modified sepiolite (Pangel B40) and thermally cured using two different curing agents: an aliphatic diamine (Jeffamine D230, D230) and a cycloaliphatic diamine (3DCM). The morphology of the cured materials was established by scanning and transmission electron microscopy analysis. The thermal stability, thermo-mechanical properties, and flexural behaviour of the sepiolite-modified matrices were evaluated and compared with the corresponding neat matrix. The initial thermal decomposition temperature did not change with the addition of sepiolite. The flexural modulus of the epoxy matrix slightly increases by the incorporation of the organophilic sepiolite. The flexural strength of the sepiolite modified resin cured with D230 increased by a 10% while the sepiolite modified resin cured with 3DCM resulted in a lower flexural strength compared with the unmodified resin. The reduced flexural strength was attributed to the stress concentrations caused by the sepiolite modifier, which rendered the resins more brittle.Fil: Nohales, Andres. Universidad de Valencia; EspañaFil: Solar, Lorena. Universidad de Valencia; EspañaFil: Porcar, Iolanda. Universidad de Valencia; EspañaFil: Vallo, Claudia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Gómez, Clara M.. Universidad de Valencia; EspañaPergamon-Elsevier Science Ltd2006-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76147Nohales, Andres; Solar, Lorena; Porcar, Iolanda; Vallo, Claudia Ines; Gómez, Clara M.; Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents; Pergamon-Elsevier Science Ltd; European Polymer Journal; 42; 11; 11-2006; 3093-31010014-3057CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S001430570600262Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.eurpolymj.2006.07.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:03Zoai:ri.conicet.gov.ar:11336/76147instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:45:04.167CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
title Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
spellingShingle Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
Nohales, Andres
Composites
Epoxy
Sepiolite
title_short Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
title_full Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
title_fullStr Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
title_full_unstemmed Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
title_sort Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents
dc.creator.none.fl_str_mv Nohales, Andres
Solar, Lorena
Porcar, Iolanda
Vallo, Claudia Ines
Gómez, Clara M.
author Nohales, Andres
author_facet Nohales, Andres
Solar, Lorena
Porcar, Iolanda
Vallo, Claudia Ines
Gómez, Clara M.
author_role author
author2 Solar, Lorena
Porcar, Iolanda
Vallo, Claudia Ines
Gómez, Clara M.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Composites
Epoxy
Sepiolite
topic Composites
Epoxy
Sepiolite
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A bisphenol A-based epoxy resin was modified with 5 wt% organically modified sepiolite (Pangel B40) and thermally cured using two different curing agents: an aliphatic diamine (Jeffamine D230, D230) and a cycloaliphatic diamine (3DCM). The morphology of the cured materials was established by scanning and transmission electron microscopy analysis. The thermal stability, thermo-mechanical properties, and flexural behaviour of the sepiolite-modified matrices were evaluated and compared with the corresponding neat matrix. The initial thermal decomposition temperature did not change with the addition of sepiolite. The flexural modulus of the epoxy matrix slightly increases by the incorporation of the organophilic sepiolite. The flexural strength of the sepiolite modified resin cured with D230 increased by a 10% while the sepiolite modified resin cured with 3DCM resulted in a lower flexural strength compared with the unmodified resin. The reduced flexural strength was attributed to the stress concentrations caused by the sepiolite modifier, which rendered the resins more brittle.
Fil: Nohales, Andres. Universidad de Valencia; España
Fil: Solar, Lorena. Universidad de Valencia; España
Fil: Porcar, Iolanda. Universidad de Valencia; España
Fil: Vallo, Claudia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Gómez, Clara M.. Universidad de Valencia; España
description A bisphenol A-based epoxy resin was modified with 5 wt% organically modified sepiolite (Pangel B40) and thermally cured using two different curing agents: an aliphatic diamine (Jeffamine D230, D230) and a cycloaliphatic diamine (3DCM). The morphology of the cured materials was established by scanning and transmission electron microscopy analysis. The thermal stability, thermo-mechanical properties, and flexural behaviour of the sepiolite-modified matrices were evaluated and compared with the corresponding neat matrix. The initial thermal decomposition temperature did not change with the addition of sepiolite. The flexural modulus of the epoxy matrix slightly increases by the incorporation of the organophilic sepiolite. The flexural strength of the sepiolite modified resin cured with D230 increased by a 10% while the sepiolite modified resin cured with 3DCM resulted in a lower flexural strength compared with the unmodified resin. The reduced flexural strength was attributed to the stress concentrations caused by the sepiolite modifier, which rendered the resins more brittle.
publishDate 2006
dc.date.none.fl_str_mv 2006-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/76147
Nohales, Andres; Solar, Lorena; Porcar, Iolanda; Vallo, Claudia Ines; Gómez, Clara M.; Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents; Pergamon-Elsevier Science Ltd; European Polymer Journal; 42; 11; 11-2006; 3093-3101
0014-3057
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76147
identifier_str_mv Nohales, Andres; Solar, Lorena; Porcar, Iolanda; Vallo, Claudia Ines; Gómez, Clara M.; Morphology, flexural, and thermal properties of sepiolite modified epoxy resins with different curing agents; Pergamon-Elsevier Science Ltd; European Polymer Journal; 42; 11; 11-2006; 3093-3101
0014-3057
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S001430570600262X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.eurpolymj.2006.07.018
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268707068313600
score 13.13397

Publicaciones similares