Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer

Detalhes bibliográficos
Autor(a) principal: Bimestre,Breno Heins
Data de Publicação: 2012
Outros Autores: Saron,Clodoaldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000300019
Resumo: Poly(ethylene tereftalate) (PET) is a polymer highly susceptible to the hydrolytic reactions that occur during applications and mainly in thermomechanical processing. These reactions lead to the decrease of molecular weight of the polymer, limiting the recycling number of the material. The reactive extrusion of the PET in presence of chain extenders is an alternative to recover mechanical and rheological properties that were depreciated by the polymer degradation. In this study, PET wastes from nonwoven fabrics production were extruded in presence of the secondary stabilizer Irgafos 126 (IRG) on variable concentrations. The results showed that Irgafos 126 increased molecular weight, decreased crystallinity and changed processing behavior of the PET, similarly to the effects produced by the well-known chain extender pyromellitic dianhydride (PMDA), showing that the secondary stabilizer Irgafos 126 can also act as a chain extender for the PET.
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spelling Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizerPETchain extenderrecyclingreactive extrusionPoly(ethylene tereftalate) (PET) is a polymer highly susceptible to the hydrolytic reactions that occur during applications and mainly in thermomechanical processing. These reactions lead to the decrease of molecular weight of the polymer, limiting the recycling number of the material. The reactive extrusion of the PET in presence of chain extenders is an alternative to recover mechanical and rheological properties that were depreciated by the polymer degradation. In this study, PET wastes from nonwoven fabrics production were extruded in presence of the secondary stabilizer Irgafos 126 (IRG) on variable concentrations. The results showed that Irgafos 126 increased molecular weight, decreased crystallinity and changed processing behavior of the PET, similarly to the effects produced by the well-known chain extender pyromellitic dianhydride (PMDA), showing that the secondary stabilizer Irgafos 126 can also act as a chain extender for the PET.ABM, ABC, ABPol2012-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000300019Materials Research v.15 n.3 2012reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392012005000058info:eu-repo/semantics/openAccessBimestre,Breno HeinsSaron,Clodoaldoeng2012-06-20T00:00:00Zoai:scielo:S1516-14392012000300019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2012-06-20T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
title Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
spellingShingle Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
Bimestre,Breno Heins
PET
chain extender
recycling
reactive extrusion
title_short Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
title_full Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
title_fullStr Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
title_full_unstemmed Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
title_sort Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer
author Bimestre,Breno Heins
author_facet Bimestre,Breno Heins
Saron,Clodoaldo
author_role author
author2 Saron,Clodoaldo
author2_role author
dc.contributor.author.fl_str_mv Bimestre,Breno Heins
Saron,Clodoaldo
dc.subject.por.fl_str_mv PET
chain extender
recycling
reactive extrusion
topic PET
chain extender
recycling
reactive extrusion
description Poly(ethylene tereftalate) (PET) is a polymer highly susceptible to the hydrolytic reactions that occur during applications and mainly in thermomechanical processing. These reactions lead to the decrease of molecular weight of the polymer, limiting the recycling number of the material. The reactive extrusion of the PET in presence of chain extenders is an alternative to recover mechanical and rheological properties that were depreciated by the polymer degradation. In this study, PET wastes from nonwoven fabrics production were extruded in presence of the secondary stabilizer Irgafos 126 (IRG) on variable concentrations. The results showed that Irgafos 126 increased molecular weight, decreased crystallinity and changed processing behavior of the PET, similarly to the effects produced by the well-known chain extender pyromellitic dianhydride (PMDA), showing that the secondary stabilizer Irgafos 126 can also act as a chain extender for the PET.
publishDate 2012
dc.date.none.fl_str_mv 2012-06-01
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=S1516-14392012000300019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000300019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392012005000058
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.15 n.3 2012
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212661321531392

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