Effect of SWCNT dispersion on epoxy nanocomposite properties

Autores
Uzunpinar, Cihan; Mosiewicki, Mirna Alejandra; Auad, Maria L.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In nanocomposites containing single wall carbon nanotubes (SWCNTs), the final properties strongly depend on the dispersion quality of these fillers. Various methods have been used to improve the dispersion of nanofillers; however, one of the most effective ways is to functionalize carbon nanotubes (CNTs) with covalent and noncovalent functional groups. In this work, the dispersion of SWCNTs in an epoxy system was studied by using surfactants, acid (COOH), and ester groups (PGE)-modified CNTs. Rheological and scanning electron microscopy analysis showed that functionalization of CNTs helped in improving the dispersion of fillers in the epoxy matrix. Systems with surfactant modified SWCNTs (1 wt%) exhibited the highest storage modulus at low frequencies after 5-min sonication. This behavior is associated to a stronger network of fillers as a result of a good dispersion. However, longer sonication times lowered the storage modulus, corresponding to a degradation of the tubes. The effect of the dispersion quality on mechanical properties was also studied using a three-point bending set-up.
Fil: Uzunpinar, Cihan. Auburn University; Estados Unidos
Fil: Mosiewicki, Mirna Alejandra. Auburn University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Auad, Maria L.. Auburn University; Estados Unidos
Materia
Single Wall Carbon Nanotubes
Nanocomposites
Mechanical Properties
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/53940
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Effect of SWCNT dispersion on epoxy nanocomposite propertiesUzunpinar, CihanMosiewicki, Mirna AlejandraAuad, Maria L.Single Wall Carbon NanotubesNanocompositesMechanical Propertieshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In nanocomposites containing single wall carbon nanotubes (SWCNTs), the final properties strongly depend on the dispersion quality of these fillers. Various methods have been used to improve the dispersion of nanofillers; however, one of the most effective ways is to functionalize carbon nanotubes (CNTs) with covalent and noncovalent functional groups. In this work, the dispersion of SWCNTs in an epoxy system was studied by using surfactants, acid (COOH), and ester groups (PGE)-modified CNTs. Rheological and scanning electron microscopy analysis showed that functionalization of CNTs helped in improving the dispersion of fillers in the epoxy matrix. Systems with surfactant modified SWCNTs (1 wt%) exhibited the highest storage modulus at low frequencies after 5-min sonication. This behavior is associated to a stronger network of fillers as a result of a good dispersion. However, longer sonication times lowered the storage modulus, corresponding to a degradation of the tubes. The effect of the dispersion quality on mechanical properties was also studied using a three-point bending set-up.Fil: Uzunpinar, Cihan. Auburn University; Estados UnidosFil: Mosiewicki, Mirna Alejandra. Auburn University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Auad, Maria L.. Auburn University; Estados UnidosJohn Wiley & Sons Inc2012-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53940Uzunpinar, Cihan; Mosiewicki, Mirna Alejandra; Auad, Maria L.; Effect of SWCNT dispersion on epoxy nanocomposite properties; John Wiley & Sons Inc; Polymer Composites; 33; 4; 4-2012; 582-5880272-8397CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/pc.22173info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pc.22173info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:00:05Zoai:ri.conicet.gov.ar:11336/53940instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:00:06.12CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of SWCNT dispersion on epoxy nanocomposite properties
title Effect of SWCNT dispersion on epoxy nanocomposite properties
spellingShingle Effect of SWCNT dispersion on epoxy nanocomposite properties
Uzunpinar, Cihan
Single Wall Carbon Nanotubes
Nanocomposites
Mechanical Properties
title_short Effect of SWCNT dispersion on epoxy nanocomposite properties
title_full Effect of SWCNT dispersion on epoxy nanocomposite properties
title_fullStr Effect of SWCNT dispersion on epoxy nanocomposite properties
title_full_unstemmed Effect of SWCNT dispersion on epoxy nanocomposite properties
title_sort Effect of SWCNT dispersion on epoxy nanocomposite properties
dc.creator.none.fl_str_mv Uzunpinar, Cihan
Mosiewicki, Mirna Alejandra
Auad, Maria L.
author Uzunpinar, Cihan
author_facet Uzunpinar, Cihan
Mosiewicki, Mirna Alejandra
Auad, Maria L.
author_role author
author2 Mosiewicki, Mirna Alejandra
Auad, Maria L.
author2_role author
author
dc.subject.none.fl_str_mv Single Wall Carbon Nanotubes
Nanocomposites
Mechanical Properties
topic Single Wall Carbon Nanotubes
Nanocomposites
Mechanical Properties
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In nanocomposites containing single wall carbon nanotubes (SWCNTs), the final properties strongly depend on the dispersion quality of these fillers. Various methods have been used to improve the dispersion of nanofillers; however, one of the most effective ways is to functionalize carbon nanotubes (CNTs) with covalent and noncovalent functional groups. In this work, the dispersion of SWCNTs in an epoxy system was studied by using surfactants, acid (COOH), and ester groups (PGE)-modified CNTs. Rheological and scanning electron microscopy analysis showed that functionalization of CNTs helped in improving the dispersion of fillers in the epoxy matrix. Systems with surfactant modified SWCNTs (1 wt%) exhibited the highest storage modulus at low frequencies after 5-min sonication. This behavior is associated to a stronger network of fillers as a result of a good dispersion. However, longer sonication times lowered the storage modulus, corresponding to a degradation of the tubes. The effect of the dispersion quality on mechanical properties was also studied using a three-point bending set-up.
Fil: Uzunpinar, Cihan. Auburn University; Estados Unidos
Fil: Mosiewicki, Mirna Alejandra. Auburn University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Auad, Maria L.. Auburn University; Estados Unidos
description In nanocomposites containing single wall carbon nanotubes (SWCNTs), the final properties strongly depend on the dispersion quality of these fillers. Various methods have been used to improve the dispersion of nanofillers; however, one of the most effective ways is to functionalize carbon nanotubes (CNTs) with covalent and noncovalent functional groups. In this work, the dispersion of SWCNTs in an epoxy system was studied by using surfactants, acid (COOH), and ester groups (PGE)-modified CNTs. Rheological and scanning electron microscopy analysis showed that functionalization of CNTs helped in improving the dispersion of fillers in the epoxy matrix. Systems with surfactant modified SWCNTs (1 wt%) exhibited the highest storage modulus at low frequencies after 5-min sonication. This behavior is associated to a stronger network of fillers as a result of a good dispersion. However, longer sonication times lowered the storage modulus, corresponding to a degradation of the tubes. The effect of the dispersion quality on mechanical properties was also studied using a three-point bending set-up.
publishDate 2012
dc.date.none.fl_str_mv 2012-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/53940
Uzunpinar, Cihan; Mosiewicki, Mirna Alejandra; Auad, Maria L.; Effect of SWCNT dispersion on epoxy nanocomposite properties; John Wiley & Sons Inc; Polymer Composites; 33; 4; 4-2012; 582-588
0272-8397
CONICET Digital
CONICET
url http://hdl.handle.net/11336/53940
identifier_str_mv Uzunpinar, Cihan; Mosiewicki, Mirna Alejandra; Auad, Maria L.; Effect of SWCNT dispersion on epoxy nanocomposite properties; John Wiley & Sons Inc; Polymer Composites; 33; 4; 4-2012; 582-588
0272-8397
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/pc.22173
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pc.22173
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Inc
publisher.none.fl_str_mv John Wiley & Sons Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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