Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation

Detalhes bibliográficos
Autor(a) principal: Santos,Felipe Rodrigues Alves dos
Data de Publicação: 2015
Outros Autores: Borges,Cristiano Piacsek, Fonseca,Fabiana Valéria da
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=S1516-14392015000501015
Resumo: AbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties.
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spelling Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonationozonemembrane contactorpolymer degradationwater treatmentAbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties.ABM, ABC, ABPol2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000501015Materials Research v.18 n.5 2015reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.016715info:eu-repo/semantics/openAccessSantos,Felipe Rodrigues Alves dosBorges,Cristiano PiacsekFonseca,Fabiana Valéria daeng2015-10-19T00:00:00Zoai:scielo:S1516-14392015000501015Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2015-10-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
title Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
spellingShingle Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
Santos,Felipe Rodrigues Alves dos
ozone
membrane contactor
polymer degradation
water treatment
title_short Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
title_full Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
title_fullStr Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
title_full_unstemmed Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
title_sort Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
author Santos,Felipe Rodrigues Alves dos
author_facet Santos,Felipe Rodrigues Alves dos
Borges,Cristiano Piacsek
Fonseca,Fabiana Valéria da
author_role author
author2 Borges,Cristiano Piacsek
Fonseca,Fabiana Valéria da
author2_role author
author
dc.contributor.author.fl_str_mv Santos,Felipe Rodrigues Alves dos
Borges,Cristiano Piacsek
Fonseca,Fabiana Valéria da
dc.subject.por.fl_str_mv ozone
membrane contactor
polymer degradation
water treatment
topic ozone
membrane contactor
polymer degradation
water treatment
description AbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-01
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=S1516-14392015000501015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000501015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1516-1439.016715
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.18 n.5 2015
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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