Interfacial tension of PBT/SAN blends by the drop retraction method

Detalhes bibliográficos
Autor(a) principal: Ito,Edson Noriyuki
Data de Publicação: 2008
Outros Autores: Ueki,Marcelo Massayoshi, Bretas,Rosario Elida Suman, Hage Junior,Elias
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=S1516-14392008000200009
Resumo: The aim of this work was to evaluate the interfacial tension from the poly(butylene terephtalate) and poly(styrene-co-acrylonitrile) (PBT/SAN) interface region using the drop retraction method. SAN filaments were sandwiched between two PBT films; the whole system was heated up to 240 °C, in a hot stage coupled to an optical microscope. The rheological parameters of the PBT/SAN system were obtained by parallel plates rheometry. An increase of the interfacial tension with the PBT molecular weight was observed with values between 0.57 and 1.06 mN/m, depending on the molecular weight. Theoretical values were calculated using the geometric-mean and harmonic-mean equations and were found to be similar to the experimental results. Viscosity measurements showed that the higher the SAN/PBT viscosity ratio, the lower the interfacial tension of these blends.
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spelling Interfacial tension of PBT/SAN blends by the drop retraction methodinterfacial tensiondrop retraction methodPBT/SAN blendsThe aim of this work was to evaluate the interfacial tension from the poly(butylene terephtalate) and poly(styrene-co-acrylonitrile) (PBT/SAN) interface region using the drop retraction method. SAN filaments were sandwiched between two PBT films; the whole system was heated up to 240 °C, in a hot stage coupled to an optical microscope. The rheological parameters of the PBT/SAN system were obtained by parallel plates rheometry. An increase of the interfacial tension with the PBT molecular weight was observed with values between 0.57 and 1.06 mN/m, depending on the molecular weight. Theoretical values were calculated using the geometric-mean and harmonic-mean equations and were found to be similar to the experimental results. Viscosity measurements showed that the higher the SAN/PBT viscosity ratio, the lower the interfacial tension of these blends.ABM, ABC, ABPol2008-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000200009Materials Research v.11 n.2 2008reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392008000200009info:eu-repo/semantics/openAccessIto,Edson NoriyukiUeki,Marcelo MassayoshiBretas,Rosario Elida SumanHage Junior,Eliaseng2008-07-16T00:00:00Zoai:scielo:S1516-14392008000200009Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2008-07-16T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Interfacial tension of PBT/SAN blends by the drop retraction method
title Interfacial tension of PBT/SAN blends by the drop retraction method
spellingShingle Interfacial tension of PBT/SAN blends by the drop retraction method
Ito,Edson Noriyuki
interfacial tension
drop retraction method
PBT/SAN blends
title_short Interfacial tension of PBT/SAN blends by the drop retraction method
title_full Interfacial tension of PBT/SAN blends by the drop retraction method
title_fullStr Interfacial tension of PBT/SAN blends by the drop retraction method
title_full_unstemmed Interfacial tension of PBT/SAN blends by the drop retraction method
title_sort Interfacial tension of PBT/SAN blends by the drop retraction method
author Ito,Edson Noriyuki
author_facet Ito,Edson Noriyuki
Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
author_role author
author2 Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
author2_role author
author
author
dc.contributor.author.fl_str_mv Ito,Edson Noriyuki
Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
dc.subject.por.fl_str_mv interfacial tension
drop retraction method
PBT/SAN blends
topic interfacial tension
drop retraction method
PBT/SAN blends
description The aim of this work was to evaluate the interfacial tension from the poly(butylene terephtalate) and poly(styrene-co-acrylonitrile) (PBT/SAN) interface region using the drop retraction method. SAN filaments were sandwiched between two PBT films; the whole system was heated up to 240 °C, in a hot stage coupled to an optical microscope. The rheological parameters of the PBT/SAN system were obtained by parallel plates rheometry. An increase of the interfacial tension with the PBT molecular weight was observed with values between 0.57 and 1.06 mN/m, depending on the molecular weight. Theoretical values were calculated using the geometric-mean and harmonic-mean equations and were found to be similar to the experimental results. Viscosity measurements showed that the higher the SAN/PBT viscosity ratio, the lower the interfacial tension of these blends.
publishDate 2008
dc.date.none.fl_str_mv 2008-06-01
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=S1516-14392008000200009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000200009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392008000200009
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.11 n.2 2008
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
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