Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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=S1516-14392011000200019 |
Resumo: | In this study, carboxylated (SWCNT-c) and pristine (SWCNT) single-walled carbon nanotubes were randomly dispersed in a hardener prior to mixing it with an epoxy resin. The influence of several parameters on the dispersion process were investigated. The produced samples were characterized by infrared spectroscopy, differential scanning calorimetry, dilatometry, dynamic mechanical analysis, scanning electron microscopy and mechanical testing (tensile, flexural and microhardness). The results obtained with the nanocomposites with SWCNT-c suggested that the lowest time and amplitude of sonication improved the mechanical properties. The use of a solvent (acetone) was important to improve dispersion, ultimately increasing microhardness and Young's Modulus up to 32%. Nanocomposites with 0.25 wt. (%) SWCNT-c presented superior mechanical properties compared to those with 0.50 wt. (%) SWCNT. Two simple mathematical models (rule of mixtures and Halpin-Tsai) were used to predict Young's Modulus of the composites yielding results very close to the experimental ones. |
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Materials research (São Carlos. Online) |
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Study of epoxy/CNT nanocomposites prepared via dispersion in the hardenercarbon nanotubesdispersionhardenernanocompositesIn this study, carboxylated (SWCNT-c) and pristine (SWCNT) single-walled carbon nanotubes were randomly dispersed in a hardener prior to mixing it with an epoxy resin. The influence of several parameters on the dispersion process were investigated. The produced samples were characterized by infrared spectroscopy, differential scanning calorimetry, dilatometry, dynamic mechanical analysis, scanning electron microscopy and mechanical testing (tensile, flexural and microhardness). The results obtained with the nanocomposites with SWCNT-c suggested that the lowest time and amplitude of sonication improved the mechanical properties. The use of a solvent (acetone) was important to improve dispersion, ultimately increasing microhardness and Young's Modulus up to 32%. Nanocomposites with 0.25 wt. (%) SWCNT-c presented superior mechanical properties compared to those with 0.50 wt. (%) SWCNT. Two simple mathematical models (rule of mixtures and Halpin-Tsai) were used to predict Young's Modulus of the composites yielding results very close to the experimental ones.ABM, ABC, ABPol2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000200019Materials Research v.14 n.2 2011reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392011005000041info:eu-repo/semantics/openAccessPizzutto,Caio EnricoSuave,JaquelineBertholdi,JonasPezzin,Sérgio HenriqueCoelho,Luiz Antonio FerreiraAmico,Sandro Camposeng2011-06-27T00:00:00Zoai:scielo:S1516-14392011000200019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-06-27T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
title |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
spellingShingle |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener Pizzutto,Caio Enrico carbon nanotubes dispersion hardener nanocomposites |
title_short |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
title_full |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
title_fullStr |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
title_full_unstemmed |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
title_sort |
Study of epoxy/CNT nanocomposites prepared via dispersion in the hardener |
author |
Pizzutto,Caio Enrico |
author_facet |
Pizzutto,Caio Enrico Suave,Jaqueline Bertholdi,Jonas Pezzin,Sérgio Henrique Coelho,Luiz Antonio Ferreira Amico,Sandro Campos |
author_role |
author |
author2 |
Suave,Jaqueline Bertholdi,Jonas Pezzin,Sérgio Henrique Coelho,Luiz Antonio Ferreira Amico,Sandro Campos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pizzutto,Caio Enrico Suave,Jaqueline Bertholdi,Jonas Pezzin,Sérgio Henrique Coelho,Luiz Antonio Ferreira Amico,Sandro Campos |
dc.subject.por.fl_str_mv |
carbon nanotubes dispersion hardener nanocomposites |
topic |
carbon nanotubes dispersion hardener nanocomposites |
description |
In this study, carboxylated (SWCNT-c) and pristine (SWCNT) single-walled carbon nanotubes were randomly dispersed in a hardener prior to mixing it with an epoxy resin. The influence of several parameters on the dispersion process were investigated. The produced samples were characterized by infrared spectroscopy, differential scanning calorimetry, dilatometry, dynamic mechanical analysis, scanning electron microscopy and mechanical testing (tensile, flexural and microhardness). The results obtained with the nanocomposites with SWCNT-c suggested that the lowest time and amplitude of sonication improved the mechanical properties. The use of a solvent (acetone) was important to improve dispersion, ultimately increasing microhardness and Young's Modulus up to 32%. Nanocomposites with 0.25 wt. (%) SWCNT-c presented superior mechanical properties compared to those with 0.50 wt. (%) SWCNT. Two simple mathematical models (rule of mixtures and Halpin-Tsai) were used to predict Young's Modulus of the composites yielding results very close to the experimental ones. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 |
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=S1516-14392011000200019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000200019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392011005000041 |
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.14 n.2 2011 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_ |
1754212660411367424 |