Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites

Detalhes bibliográficos
Autor(a) principal: Ferreira, Creusa Iara
Data de Publicação: 2013
Outros Autores: Bianchi, Otávio, Soto Oviedo, Mauro Alfredo, Oliveira, Ricardo Vinicius Bof de, Mauler, Raquel Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/83612
Resumo: The viscoelastic, mechanical and morphological properties of polypropylene/exfoliated graphite nanocomposites with different contents of nanofiller were investigated. According to transmission electron microscopy results, the nanofiller particles were homogeneously dispersed in the matrix. The rheological properties indicated that incorporation of graphite improved the matrix stiffness and had a reinforcing effect. Exfoliated graphite had a weak interaction with the polypropylene. The behavior of the nanocomposites was similar to that of polypropylene in terms of the interfacial detachment inferred from the transmission electron microscopy images and of their G’ (storage) and G’’ (loss) moduli, and viscosity. The mechanical properties of the nanocomposites compared to the matrix improved significantly for the flexural and storage moduli with little loss of impact strength.
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spelling Ferreira, Creusa IaraBianchi, OtávioSoto Oviedo, Mauro AlfredoOliveira, Ricardo Vinicius Bof deMauler, Raquel Santos2013-12-12T01:50:15Z20130104-1428http://hdl.handle.net/10183/83612000903868The viscoelastic, mechanical and morphological properties of polypropylene/exfoliated graphite nanocomposites with different contents of nanofiller were investigated. According to transmission electron microscopy results, the nanofiller particles were homogeneously dispersed in the matrix. The rheological properties indicated that incorporation of graphite improved the matrix stiffness and had a reinforcing effect. Exfoliated graphite had a weak interaction with the polypropylene. The behavior of the nanocomposites was similar to that of polypropylene in terms of the interfacial detachment inferred from the transmission electron microscopy images and of their G’ (storage) and G’’ (loss) moduli, and viscosity. The mechanical properties of the nanocomposites compared to the matrix improved significantly for the flexural and storage moduli with little loss of impact strength.application/pdfengPolímeros (São Carlos): ciência e tecnologia. São Carlos. Vol. 23, n. 4 (jul./ago. 2013), p. 456-461NanocompósitosGrafiteExfoliated graphiteMechanical propertiesNanocompositeViscoelastic propertiesMorphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocompositesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000903868.pdf000903868.pdfTexto completo (inglês)application/pdf1062400http://www.lume.ufrgs.br/bitstream/10183/83612/1/000903868.pdf34e4307c9a8f45fb9c4a902c6d47321bMD51TEXT000903868.pdf.txt000903868.pdf.txtExtracted Texttext/plain25019http://www.lume.ufrgs.br/bitstream/10183/83612/2/000903868.pdf.txt7763ff2da218d4415ca4cff8a73aece1MD52THUMBNAIL000903868.pdf.jpg000903868.pdf.jpgGenerated Thumbnailimage/jpeg2014http://www.lume.ufrgs.br/bitstream/10183/83612/3/000903868.pdf.jpg61edbec2f4072dcf66dce71ca33be41eMD5310183/836122018-10-09 08:45:15.738oai:www.lume.ufrgs.br:10183/83612Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-09T11:45:15Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
title Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
spellingShingle Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
Ferreira, Creusa Iara
Nanocompósitos
Grafite
Exfoliated graphite
Mechanical properties
Nanocomposite
Viscoelastic properties
title_short Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
title_full Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
title_fullStr Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
title_full_unstemmed Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
title_sort Morphological, viscoelastic and mechanical characterization of polypropylene/exfoliated graphite nanocomposites
author Ferreira, Creusa Iara
author_facet Ferreira, Creusa Iara
Bianchi, Otávio
Soto Oviedo, Mauro Alfredo
Oliveira, Ricardo Vinicius Bof de
Mauler, Raquel Santos
author_role author
author2 Bianchi, Otávio
Soto Oviedo, Mauro Alfredo
Oliveira, Ricardo Vinicius Bof de
Mauler, Raquel Santos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Creusa Iara
Bianchi, Otávio
Soto Oviedo, Mauro Alfredo
Oliveira, Ricardo Vinicius Bof de
Mauler, Raquel Santos
dc.subject.por.fl_str_mv Nanocompósitos
Grafite
topic Nanocompósitos
Grafite
Exfoliated graphite
Mechanical properties
Nanocomposite
Viscoelastic properties
dc.subject.eng.fl_str_mv Exfoliated graphite
Mechanical properties
Nanocomposite
Viscoelastic properties
description The viscoelastic, mechanical and morphological properties of polypropylene/exfoliated graphite nanocomposites with different contents of nanofiller were investigated. According to transmission electron microscopy results, the nanofiller particles were homogeneously dispersed in the matrix. The rheological properties indicated that incorporation of graphite improved the matrix stiffness and had a reinforcing effect. Exfoliated graphite had a weak interaction with the polypropylene. The behavior of the nanocomposites was similar to that of polypropylene in terms of the interfacial detachment inferred from the transmission electron microscopy images and of their G’ (storage) and G’’ (loss) moduli, and viscosity. The mechanical properties of the nanocomposites compared to the matrix improved significantly for the flexural and storage moduli with little loss of impact strength.
publishDate 2013
dc.date.accessioned.fl_str_mv 2013-12-12T01:50:15Z
dc.date.issued.fl_str_mv 2013
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/83612
dc.identifier.issn.pt_BR.fl_str_mv 0104-1428
dc.identifier.nrb.pt_BR.fl_str_mv 000903868
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Polímeros (São Carlos): ciência e tecnologia. São Carlos. Vol. 23, n. 4 (jul./ago. 2013), p. 456-461
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