The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method

Bibliographic Details
Main Author: Rodrigues,Victor de Carvalho
Publication Date: 2021
Other Authors: Hirayama,Denise, Ancelotti Junior,Antonio Carlos
Format: Article
Language: eng
Source: Polímeros (São Carlos. Online)
Download full: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100407
Summary: Abstract The curing reactions of epoxy resins are a complex process that defines thermosets final properties and are affected by any additive present on its formulation. Considering this, the aim of this study was to analyze the influence of the solvent addition on the curing kinetics of an epoxy system. The epoxy samples were prepared using different percentages by weight of acetone: 0, 2, 5 and 10 wt.%. From DSC and DMA tests, followed by the Borchardt-Daniels kinetic analysis it was reported that the addition of acetone can decrease the reactions rate, activation energy, Tg and elastic modulus. The presence of solvent, even in small amounts, can affect the curing mechanisms of epoxy resins. The changes on the curing behavior and the low quality of the final properties for the sample with 10 wt.% of solvent indicates that this may be a limit for acetone addition on the epoxy formulations.
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spelling The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels methodAcetoneBorchardt-Danielscuring kineticsepoxyAbstract The curing reactions of epoxy resins are a complex process that defines thermosets final properties and are affected by any additive present on its formulation. Considering this, the aim of this study was to analyze the influence of the solvent addition on the curing kinetics of an epoxy system. The epoxy samples were prepared using different percentages by weight of acetone: 0, 2, 5 and 10 wt.%. From DSC and DMA tests, followed by the Borchardt-Daniels kinetic analysis it was reported that the addition of acetone can decrease the reactions rate, activation energy, Tg and elastic modulus. The presence of solvent, even in small amounts, can affect the curing mechanisms of epoxy resins. The changes on the curing behavior and the low quality of the final properties for the sample with 10 wt.% of solvent indicates that this may be a limit for acetone addition on the epoxy formulations.Associação Brasileira de Polímeros2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100407Polímeros v.31 n.1 2021reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.09820info:eu-repo/semantics/openAccessRodrigues,Victor de CarvalhoHirayama,DeniseAncelotti Junior,Antonio Carloseng2021-05-26T00:00:00Zoai:scielo:S0104-14282021000100407Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2021-05-26T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
title The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
spellingShingle The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
Rodrigues,Victor de Carvalho
Acetone
Borchardt-Daniels
curing kinetics
epoxy
title_short The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
title_full The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
title_fullStr The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
title_full_unstemmed The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
title_sort The effects of residual organic solvent on epoxy: modeling of kinetic parameters by DSC and Borchardt-Daniels method
author Rodrigues,Victor de Carvalho
author_facet Rodrigues,Victor de Carvalho
Hirayama,Denise
Ancelotti Junior,Antonio Carlos
author_role author
author2 Hirayama,Denise
Ancelotti Junior,Antonio Carlos
author2_role author
author
dc.contributor.author.fl_str_mv Rodrigues,Victor de Carvalho
Hirayama,Denise
Ancelotti Junior,Antonio Carlos
dc.subject.por.fl_str_mv Acetone
Borchardt-Daniels
curing kinetics
epoxy
topic Acetone
Borchardt-Daniels
curing kinetics
epoxy
description Abstract The curing reactions of epoxy resins are a complex process that defines thermosets final properties and are affected by any additive present on its formulation. Considering this, the aim of this study was to analyze the influence of the solvent addition on the curing kinetics of an epoxy system. The epoxy samples were prepared using different percentages by weight of acetone: 0, 2, 5 and 10 wt.%. From DSC and DMA tests, followed by the Borchardt-Daniels kinetic analysis it was reported that the addition of acetone can decrease the reactions rate, activation energy, Tg and elastic modulus. The presence of solvent, even in small amounts, can affect the curing mechanisms of epoxy resins. The changes on the curing behavior and the low quality of the final properties for the sample with 10 wt.% of solvent indicates that this may be a limit for acetone addition on the epoxy formulations.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100407
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100407
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-1428.09820
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.31 n.1 2021
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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