Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study

Autores
Salgueiro, Walter Alberto; Ramos, J.; Somoza, Alberto Horacio; Goyanes, Silvia Nair; Mondragón, Silvina Andrea
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A systematic study on the dependence of the volumes at nanoscale in epoxy systems cured with two selected aminic hardeners at different pre-cure temperatures is presented. Nanohole volumes were measured by positron annihilation lifetime spectroscopy. Additional information regarding the structure of the thermosets was obtained using dynamic mechanical analysis. Volume results obtained are discussed in terms of the cure schedule applied to the epoxy systems, their characteristic glass transition temperatures and their crosslink density. The pre-cure temperature and the structure of the hardeners govern the packing of the molecular chains of the epoxy network. Using together positron and mechanical experimental techniques allows to conclude that a strong change in the volume and number density of the nanoholes takes place when the pre-cure temperature crosses the glass transition temperature of the systems. © 2006 Elsevier Ltd. All rights reserved.
Fil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Ramos, J.. Escuela Universitaria Politécnica;
Fil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Mondragón, Silvina Andrea. Escuela Universitaria Politécnica;
Materia
Cure Schedule
Epoxy
Hardener
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:11336/71822
Acceder
id CONICETDig_4dcb4219d7c7e4fb631380335bc300f6
oai_identifier_str oai:ri.conicet.gov.ar:11336/71822
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS studySalgueiro, Walter AlbertoRamos, J.Somoza, Alberto HoracioGoyanes, Silvia NairMondragón, Silvina AndreaCure ScheduleEpoxyHardenerhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A systematic study on the dependence of the volumes at nanoscale in epoxy systems cured with two selected aminic hardeners at different pre-cure temperatures is presented. Nanohole volumes were measured by positron annihilation lifetime spectroscopy. Additional information regarding the structure of the thermosets was obtained using dynamic mechanical analysis. Volume results obtained are discussed in terms of the cure schedule applied to the epoxy systems, their characteristic glass transition temperatures and their crosslink density. The pre-cure temperature and the structure of the hardeners govern the packing of the molecular chains of the epoxy network. Using together positron and mechanical experimental techniques allows to conclude that a strong change in the volume and number density of the nanoholes takes place when the pre-cure temperature crosses the glass transition temperature of the systems. © 2006 Elsevier Ltd. All rights reserved.Fil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Ramos, J.. Escuela Universitaria Politécnica;Fil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Mondragón, Silvina Andrea. Escuela Universitaria Politécnica;Elsevier2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71822Salgueiro, Walter Alberto; Ramos, J.; Somoza, Alberto Horacio; Goyanes, Silvia Nair; Mondragón, Silvina Andrea; Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study; Elsevier; Polymer; 47; 14; 12-2006; 5066-50700032-3861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.polymer.2006.05.032info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:54Zoai:ri.conicet.gov.ar:11336/71822instacron: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:34982025-09-29 10:12:55.228CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
title Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
spellingShingle Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
Salgueiro, Walter Alberto
Cure Schedule
Epoxy
Hardener
title_short Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
title_full Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
title_fullStr Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
title_full_unstemmed Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
title_sort Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study
dc.creator.none.fl_str_mv Salgueiro, Walter Alberto
Ramos, J.
Somoza, Alberto Horacio
Goyanes, Silvia Nair
Mondragón, Silvina Andrea
author Salgueiro, Walter Alberto
author_facet Salgueiro, Walter Alberto
Ramos, J.
Somoza, Alberto Horacio
Goyanes, Silvia Nair
Mondragón, Silvina Andrea
author_role author
author2 Ramos, J.
Somoza, Alberto Horacio
Goyanes, Silvia Nair
Mondragón, Silvina Andrea
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cure Schedule
Epoxy
Hardener
topic Cure Schedule
Epoxy
Hardener
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A systematic study on the dependence of the volumes at nanoscale in epoxy systems cured with two selected aminic hardeners at different pre-cure temperatures is presented. Nanohole volumes were measured by positron annihilation lifetime spectroscopy. Additional information regarding the structure of the thermosets was obtained using dynamic mechanical analysis. Volume results obtained are discussed in terms of the cure schedule applied to the epoxy systems, their characteristic glass transition temperatures and their crosslink density. The pre-cure temperature and the structure of the hardeners govern the packing of the molecular chains of the epoxy network. Using together positron and mechanical experimental techniques allows to conclude that a strong change in the volume and number density of the nanoholes takes place when the pre-cure temperature crosses the glass transition temperature of the systems. © 2006 Elsevier Ltd. All rights reserved.
Fil: Salgueiro, Walter Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Ramos, J.. Escuela Universitaria Politécnica;
Fil: Somoza, Alberto Horacio. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
Fil: Goyanes, Silvia Nair. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Mondragón, Silvina Andrea. Escuela Universitaria Politécnica;
description A systematic study on the dependence of the volumes at nanoscale in epoxy systems cured with two selected aminic hardeners at different pre-cure temperatures is presented. Nanohole volumes were measured by positron annihilation lifetime spectroscopy. Additional information regarding the structure of the thermosets was obtained using dynamic mechanical analysis. Volume results obtained are discussed in terms of the cure schedule applied to the epoxy systems, their characteristic glass transition temperatures and their crosslink density. The pre-cure temperature and the structure of the hardeners govern the packing of the molecular chains of the epoxy network. Using together positron and mechanical experimental techniques allows to conclude that a strong change in the volume and number density of the nanoholes takes place when the pre-cure temperature crosses the glass transition temperature of the systems. © 2006 Elsevier Ltd. All rights reserved.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/71822
Salgueiro, Walter Alberto; Ramos, J.; Somoza, Alberto Horacio; Goyanes, Silvia Nair; Mondragón, Silvina Andrea; Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study; Elsevier; Polymer; 47; 14; 12-2006; 5066-5070
0032-3861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71822
identifier_str_mv Salgueiro, Walter Alberto; Ramos, J.; Somoza, Alberto Horacio; Goyanes, Silvia Nair; Mondragón, Silvina Andrea; Nanohole volume dependence on the cure schedule in epoxy thermosetting networks: A PALS study; Elsevier; Polymer; 47; 14; 12-2006; 5066-5070
0032-3861
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.polymer.2006.05.032
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1844614040190451712
score 13.070432

Publicaciones similares