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

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

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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Main Authors: Ito,Edson Noriyuki, Ueki,Marcelo Massayoshi, Bretas,Rosario Elida Suman, Hage Junior,Elias
Format: Digital revista
Language:English
Published: ABM, ABC, ABPol 2008
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000200009
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spelling oai:scielo:S1516-143920080002000092008-07-16Interfacial tension of PBT/SAN blends by the drop retraction methodIto,Edson NoriyukiUeki,Marcelo MassayoshiBretas,Rosario Elida SumanHage Junior,Elias interfacial tension drop retraction method PBT/SAN blends 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.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.11 n.2 20082008-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000200009en10.1590/S1516-14392008000200009
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Ito,Edson Noriyuki
Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
spellingShingle Ito,Edson Noriyuki
Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
Interfacial tension of PBT/SAN blends by the drop retraction method
author_facet Ito,Edson Noriyuki
Ueki,Marcelo Massayoshi
Bretas,Rosario Elida Suman
Hage Junior,Elias
author_sort Ito,Edson Noriyuki
title Interfacial tension of PBT/SAN blends by the drop retraction method
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
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.
publisher ABM, ABC, ABPol
publishDate 2008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000200009
work_keys_str_mv AT itoedsonnoriyuki interfacialtensionofpbtsanblendsbythedropretractionmethod
AT uekimarcelomassayoshi interfacialtensionofpbtsanblendsbythedropretractionmethod
AT bretasrosarioelidasuman interfacialtensionofpbtsanblendsbythedropretractionmethod
AT hagejuniorelias interfacialtensionofpbtsanblendsbythedropretractionmethod
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