Morphology profiles generated by temperature gradient in PMMA modified epoxy system

Autores
Stefani, Pablo Marcelo; Riccardi, Carmen Cristina; Remiro , Pedro; Mondragon, Iñaki
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A diglycidyl ether of bisphenol-A (DGEBA) epoxy resin was modified with 15 wt% of poly(methylmethacrylate) (PMMA) and cured with a stoichiometric amount of 4, 4′-diamino diphenyl methane (DDM). The reactive mixture was cured in a heated mold with different gradients of temperature. Temperature profiles in the mold were imposed by generation of a heat flux from the base, supported on a hot plate, and the top, cooled with water; they were measured along the mold. Depending on the thermal history in each position of the mold, the competition between the phase-separation process and reaction kinetics produces opaque or transparent zones. Phase separation can also occur in the postcure process while the gelation does not take place before. Therefore, a thermoset plate with gradient of morphology and properties was obtained. Mass fractions of PMMA dissolved in the matrix were calculated with the Fox equation from glass transition temperatures measured along the mold. They were related to morphologies developed during curing. The super-position of the phase diagrams with the conversion-temperature trajectories during cure permitted an explanation of the morphology gradients generated.
Fil: Stefani, Pablo Marcelo. 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: Riccardi, Carmen Cristina. 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: Remiro , Pedro. Universidad del País Vasco; España
Fil: Mondragon, Iñaki. Universidad del País Vasco; España
Materia
Epoxy
Polymethyl Metacrilate
Phase Separation
Morphology Profile
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/36693
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/36693
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphology profiles generated by temperature gradient in PMMA modified epoxy systemStefani, Pablo MarceloRiccardi, Carmen CristinaRemiro , PedroMondragon, IñakiEpoxyPolymethyl MetacrilatePhase SeparationMorphology Profilehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A diglycidyl ether of bisphenol-A (DGEBA) epoxy resin was modified with 15 wt% of poly(methylmethacrylate) (PMMA) and cured with a stoichiometric amount of 4, 4′-diamino diphenyl methane (DDM). The reactive mixture was cured in a heated mold with different gradients of temperature. Temperature profiles in the mold were imposed by generation of a heat flux from the base, supported on a hot plate, and the top, cooled with water; they were measured along the mold. Depending on the thermal history in each position of the mold, the competition between the phase-separation process and reaction kinetics produces opaque or transparent zones. Phase separation can also occur in the postcure process while the gelation does not take place before. Therefore, a thermoset plate with gradient of morphology and properties was obtained. Mass fractions of PMMA dissolved in the matrix were calculated with the Fox equation from glass transition temperatures measured along the mold. They were related to morphologies developed during curing. The super-position of the phase diagrams with the conversion-temperature trajectories during cure permitted an explanation of the morphology gradients generated.Fil: Stefani, Pablo Marcelo. 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: Riccardi, Carmen Cristina. 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: Remiro , Pedro. Universidad del País Vasco; EspañaFil: Mondragon, Iñaki. Universidad del País Vasco; EspañaJohn Wiley & Sons Inc2001-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/36693Stefani, Pablo Marcelo; Riccardi, Carmen Cristina; Remiro , Pedro; Mondragon, Iñaki; Morphology profiles generated by temperature gradient in PMMA modified epoxy system; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 11; 11-2001; 2013-20210032-3888CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.10897/abstract?systemMessage=Wiley+Online+Library+is+migrating+to+a+new+platform+powered+by+Atypon%2C+the+leading+provider+of+scholarly+publishing+platforms.+The+new+Wiley+Online+Library+will+be+migrated+over+the+weekend+of+February+24+and+25+and+will+be+live+on+February+26%2C+2018.+For+more+information%2C+please+visit+our+migration+page%3Ahttp%3A%2F%2Fwww.wileyactual.com%2FWOLMigration%2Finfo:eu-repo/semantics/altIdentifier/doi/10.1002/pen.10897info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:13Zoai:ri.conicet.gov.ar:11336/36693instacron: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 10:03:13.798CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphology profiles generated by temperature gradient in PMMA modified epoxy system
title Morphology profiles generated by temperature gradient in PMMA modified epoxy system
spellingShingle Morphology profiles generated by temperature gradient in PMMA modified epoxy system
Stefani, Pablo Marcelo
Epoxy
Polymethyl Metacrilate
Phase Separation
Morphology Profile
title_short Morphology profiles generated by temperature gradient in PMMA modified epoxy system
title_full Morphology profiles generated by temperature gradient in PMMA modified epoxy system
title_fullStr Morphology profiles generated by temperature gradient in PMMA modified epoxy system
title_full_unstemmed Morphology profiles generated by temperature gradient in PMMA modified epoxy system
title_sort Morphology profiles generated by temperature gradient in PMMA modified epoxy system
dc.creator.none.fl_str_mv Stefani, Pablo Marcelo
Riccardi, Carmen Cristina
Remiro , Pedro
Mondragon, Iñaki
author Stefani, Pablo Marcelo
author_facet Stefani, Pablo Marcelo
Riccardi, Carmen Cristina
Remiro , Pedro
Mondragon, Iñaki
author_role author
author2 Riccardi, Carmen Cristina
Remiro , Pedro
Mondragon, Iñaki
author2_role author
author
author
dc.subject.none.fl_str_mv Epoxy
Polymethyl Metacrilate
Phase Separation
Morphology Profile
topic Epoxy
Polymethyl Metacrilate
Phase Separation
Morphology Profile
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A diglycidyl ether of bisphenol-A (DGEBA) epoxy resin was modified with 15 wt% of poly(methylmethacrylate) (PMMA) and cured with a stoichiometric amount of 4, 4′-diamino diphenyl methane (DDM). The reactive mixture was cured in a heated mold with different gradients of temperature. Temperature profiles in the mold were imposed by generation of a heat flux from the base, supported on a hot plate, and the top, cooled with water; they were measured along the mold. Depending on the thermal history in each position of the mold, the competition between the phase-separation process and reaction kinetics produces opaque or transparent zones. Phase separation can also occur in the postcure process while the gelation does not take place before. Therefore, a thermoset plate with gradient of morphology and properties was obtained. Mass fractions of PMMA dissolved in the matrix were calculated with the Fox equation from glass transition temperatures measured along the mold. They were related to morphologies developed during curing. The super-position of the phase diagrams with the conversion-temperature trajectories during cure permitted an explanation of the morphology gradients generated.
Fil: Stefani, Pablo Marcelo. 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: Riccardi, Carmen Cristina. 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: Remiro , Pedro. Universidad del País Vasco; España
Fil: Mondragon, Iñaki. Universidad del País Vasco; España
description A diglycidyl ether of bisphenol-A (DGEBA) epoxy resin was modified with 15 wt% of poly(methylmethacrylate) (PMMA) and cured with a stoichiometric amount of 4, 4′-diamino diphenyl methane (DDM). The reactive mixture was cured in a heated mold with different gradients of temperature. Temperature profiles in the mold were imposed by generation of a heat flux from the base, supported on a hot plate, and the top, cooled with water; they were measured along the mold. Depending on the thermal history in each position of the mold, the competition between the phase-separation process and reaction kinetics produces opaque or transparent zones. Phase separation can also occur in the postcure process while the gelation does not take place before. Therefore, a thermoset plate with gradient of morphology and properties was obtained. Mass fractions of PMMA dissolved in the matrix were calculated with the Fox equation from glass transition temperatures measured along the mold. They were related to morphologies developed during curing. The super-position of the phase diagrams with the conversion-temperature trajectories during cure permitted an explanation of the morphology gradients generated.
publishDate 2001
dc.date.none.fl_str_mv 2001-11
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/11336/36693
Stefani, Pablo Marcelo; Riccardi, Carmen Cristina; Remiro , Pedro; Mondragon, Iñaki; Morphology profiles generated by temperature gradient in PMMA modified epoxy system; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 11; 11-2001; 2013-2021
0032-3888
CONICET Digital
CONICET
url http://hdl.handle.net/11336/36693
identifier_str_mv Stefani, Pablo Marcelo; Riccardi, Carmen Cristina; Remiro , Pedro; Mondragon, Iñaki; Morphology profiles generated by temperature gradient in PMMA modified epoxy system; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 11; 11-2001; 2013-2021
0032-3888
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.10897/abstract?systemMessage=Wiley+Online+Library+is+migrating+to+a+new+platform+powered+by+Atypon%2C+the+leading+provider+of+scholarly+publishing+platforms.+The+new+Wiley+Online+Library+will+be+migrated+over+the+weekend+of+February+24+and+25+and+will+be+live+on+February+26%2C+2018.+For+more+information%2C+please+visit+our+migration+page%3Ahttp%3A%2F%2Fwww.wileyactual.com%2FWOLMigration%2F
info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.10897
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Inc
publisher.none.fl_str_mv John Wiley & Sons Inc
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
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score 13.13397

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