Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
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=S1516-14392017000601454 |
Resumo: | Polydimethylsiloxane (PDMS) membranes with different concentrations of multi-walled carbon nanotubes were prepared in order to evaluate their gas separation performances. Mixed matrix membranes were characterized by scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared, positron annihilation lifetime and Raman spectroscopies and X-ray diffraction. The permeabilities to CO2, CH4, N2 and O2 were determined. No phase separation was noticed. For carbon nanotubes content of 1 wt%, it was shown a decrease in membrane permeability with slight increase in ideal selectivity, compared to pure PDMS. However, the increase in the filler load up to 6.7 wt% increased the free volume average size of the membranes, improving the contribution of the diffusion to the transport and decreasing ideal selectivities of CO2/CH4, CO2/N2 and O2/N2. |
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Materials research (São Carlos. Online) |
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Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separationcarbon dioxidegas separationmixed matrix membranesmulti-walled carbon nanotubespolydimethylsiloxanePolydimethylsiloxane (PDMS) membranes with different concentrations of multi-walled carbon nanotubes were prepared in order to evaluate their gas separation performances. Mixed matrix membranes were characterized by scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared, positron annihilation lifetime and Raman spectroscopies and X-ray diffraction. The permeabilities to CO2, CH4, N2 and O2 were determined. No phase separation was noticed. For carbon nanotubes content of 1 wt%, it was shown a decrease in membrane permeability with slight increase in ideal selectivity, compared to pure PDMS. However, the increase in the filler load up to 6.7 wt% increased the free volume average size of the membranes, improving the contribution of the diffusion to the transport and decreasing ideal selectivities of CO2/CH4, CO2/N2 and O2/N2.ABM, ABC, ABPol2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000601454Materials Research v.20 n.6 2017reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2016-0825info:eu-repo/semantics/openAccessSilva,Elisângela Aparecida daWindmöller,DarioSilva,Glaura GoulartFigueiredo,Kátia Cecília de Souzaeng2018-05-18T00:00:00Zoai:scielo:S1516-14392017000601454Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
title |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
spellingShingle |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation Silva,Elisângela Aparecida da carbon dioxide gas separation mixed matrix membranes multi-walled carbon nanotubes polydimethylsiloxane |
title_short |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
title_full |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
title_fullStr |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
title_full_unstemmed |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
title_sort |
Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation |
author |
Silva,Elisângela Aparecida da |
author_facet |
Silva,Elisângela Aparecida da Windmöller,Dario Silva,Glaura Goulart Figueiredo,Kátia Cecília de Souza |
author_role |
author |
author2 |
Windmöller,Dario Silva,Glaura Goulart Figueiredo,Kátia Cecília de Souza |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,Elisângela Aparecida da Windmöller,Dario Silva,Glaura Goulart Figueiredo,Kátia Cecília de Souza |
dc.subject.por.fl_str_mv |
carbon dioxide gas separation mixed matrix membranes multi-walled carbon nanotubes polydimethylsiloxane |
topic |
carbon dioxide gas separation mixed matrix membranes multi-walled carbon nanotubes polydimethylsiloxane |
description |
Polydimethylsiloxane (PDMS) membranes with different concentrations of multi-walled carbon nanotubes were prepared in order to evaluate their gas separation performances. Mixed matrix membranes were characterized by scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared, positron annihilation lifetime and Raman spectroscopies and X-ray diffraction. The permeabilities to CO2, CH4, N2 and O2 were determined. No phase separation was noticed. For carbon nanotubes content of 1 wt%, it was shown a decrease in membrane permeability with slight increase in ideal selectivity, compared to pure PDMS. However, the increase in the filler load up to 6.7 wt% increased the free volume average size of the membranes, improving the contribution of the diffusion to the transport and decreasing ideal selectivities of CO2/CH4, CO2/N2 and O2/N2. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 |
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=S1516-14392017000601454 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000601454 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2016-0825 |
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.20 n.6 2017 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_ |
1754212671425609728 |