Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy

Detalhes bibliográficos
Autor(a) principal: Nascimento,D.C.O.
Data de Publicação: 2010
Outros Autores: Lopes,F.P.D., Monteiro,S.N.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200015
Resumo: The fibers extracted from the piassava palm tree, scientifically known as Attalea funifera, are among the stiffest lignocellulosic fibers being considered for polymer composite reinforcement. Characterization of piassava composites have been carried out for different polymeric matrices and mechanical tests. In this work the tensile properties of DGEBA/TETA epoxy matrix composites reinforced with up to 30% in volume of continuous and aligned piassava fibers were evaluated. Tensile specimens post-cured at 60ºC for 4 hours were room temperature tested and the corresponding fracture analyzed by scanning electrons microscopy. The results showed a decrease in both the tensile strength and the elastic modulus of the composites up to 30% with an increase at 40% of piassava fibers to values above those of the pure epoxy. The fracture analysis revealed a weak fiber/matrix interface, which could account for the comparative low performance of these composite in tensile tests up to 30% of volume fraction. The relatively large amount of stronger piassava fibers accounts for the better performance of the composite with 40% in volume fraction.
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spelling Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxyPiassava fibersepoxy compositestensile propertiesfracture analysisThe fibers extracted from the piassava palm tree, scientifically known as Attalea funifera, are among the stiffest lignocellulosic fibers being considered for polymer composite reinforcement. Characterization of piassava composites have been carried out for different polymeric matrices and mechanical tests. In this work the tensile properties of DGEBA/TETA epoxy matrix composites reinforced with up to 30% in volume of continuous and aligned piassava fibers were evaluated. Tensile specimens post-cured at 60ºC for 4 hours were room temperature tested and the corresponding fracture analyzed by scanning electrons microscopy. The results showed a decrease in both the tensile strength and the elastic modulus of the composites up to 30% with an increase at 40% of piassava fibers to values above those of the pure epoxy. The fracture analysis revealed a weak fiber/matrix interface, which could account for the comparative low performance of these composite in tensile tests up to 30% of volume fraction. The relatively large amount of stronger piassava fibers accounts for the better performance of the composite with 40% in volume fraction.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200015Matéria (Rio de Janeiro) v.15 n.2 2010reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/S1517-70762010000200015info:eu-repo/semantics/openAccessNascimento,D.C.O.Lopes,F.P.D.Monteiro,S.N.eng2010-08-27T00:00:00Zoai:scielo:S1517-70762010000200015Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2010-08-27T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
title Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
spellingShingle Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
Nascimento,D.C.O.
Piassava fibers
epoxy composites
tensile properties
fracture analysis
title_short Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
title_full Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
title_fullStr Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
title_full_unstemmed Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
title_sort Tensile behavior of lignocellulosic fiber reinforced polymer composites: Part I piassava/epoxy
author Nascimento,D.C.O.
author_facet Nascimento,D.C.O.
Lopes,F.P.D.
Monteiro,S.N.
author_role author
author2 Lopes,F.P.D.
Monteiro,S.N.
author2_role author
author
dc.contributor.author.fl_str_mv Nascimento,D.C.O.
Lopes,F.P.D.
Monteiro,S.N.
dc.subject.por.fl_str_mv Piassava fibers
epoxy composites
tensile properties
fracture analysis
topic Piassava fibers
epoxy composites
tensile properties
fracture analysis
description The fibers extracted from the piassava palm tree, scientifically known as Attalea funifera, are among the stiffest lignocellulosic fibers being considered for polymer composite reinforcement. Characterization of piassava composites have been carried out for different polymeric matrices and mechanical tests. In this work the tensile properties of DGEBA/TETA epoxy matrix composites reinforced with up to 30% in volume of continuous and aligned piassava fibers were evaluated. Tensile specimens post-cured at 60ºC for 4 hours were room temperature tested and the corresponding fracture analyzed by scanning electrons microscopy. The results showed a decrease in both the tensile strength and the elastic modulus of the composites up to 30% with an increase at 40% of piassava fibers to values above those of the pure epoxy. The fracture analysis revealed a weak fiber/matrix interface, which could account for the comparative low performance of these composite in tensile tests up to 30% of volume fraction. The relatively large amount of stronger piassava fibers accounts for the better performance of the composite with 40% in volume fraction.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S1517-70762010000200015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1517-70762010000200015
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 Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.15 n.2 2010
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
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