Polypropylene matrix composites reinforced with coconut fibers
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=S1516-14392011000300013 |
Resumo: | Polypropylene matrix composites reinforced with treated coconut fibers were produced. Fibers chemically treated (alkalization-CCUV samples) or mechanically treated (ultrasonic shockwave-CMUV samples) were dried using UV radiation. The goal was to combine low cost and eco-friendly treatments to improve fiber-matrix adhesion. Composite samples containing up to 20 vol. (%) of untreated and treated coconut fibers were taken from boxes fabricated by injection molding. Water absorption and mechanical properties were investigated according to ASTM D570-98 and ASTM D638-03, respectively. Electrical characterizations were carried out to identify applications of these composites in the electrical sector. NBR 10296-Electrical Tracking Standard (specific to industry applications) and conductivity measurements were obtained applying 5 kV DC to the samples. CMUV samples containing 5 vol. (%) fiber presented superior tensile strength values (σ~28 MPa) compared to the untreated fibers composite (σ~22 MPa) or alkali treatment (σ~24 MPa). However, CMUV composites containing 10 vol. (%) fiber presented best results for the electrical tracking test and electrical resistivity (3 × 10(7) Ω.m). The results suggest that composites reinforced with mechanically treated coconut fibers are suitable for electrical applications. |
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Polypropylene matrix composites reinforced with coconut fiberscoconut fibercompositemechanical propertiespolypropylenePolypropylene matrix composites reinforced with treated coconut fibers were produced. Fibers chemically treated (alkalization-CCUV samples) or mechanically treated (ultrasonic shockwave-CMUV samples) were dried using UV radiation. The goal was to combine low cost and eco-friendly treatments to improve fiber-matrix adhesion. Composite samples containing up to 20 vol. (%) of untreated and treated coconut fibers were taken from boxes fabricated by injection molding. Water absorption and mechanical properties were investigated according to ASTM D570-98 and ASTM D638-03, respectively. Electrical characterizations were carried out to identify applications of these composites in the electrical sector. NBR 10296-Electrical Tracking Standard (specific to industry applications) and conductivity measurements were obtained applying 5 kV DC to the samples. CMUV samples containing 5 vol. (%) fiber presented superior tensile strength values (σ~28 MPa) compared to the untreated fibers composite (σ~22 MPa) or alkali treatment (σ~24 MPa). However, CMUV composites containing 10 vol. (%) fiber presented best results for the electrical tracking test and electrical resistivity (3 × 10(7) Ω.m). The results suggest that composites reinforced with mechanically treated coconut fibers are suitable for electrical applications.ABM, ABC, ABPol2011-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000300013Materials Research v.14 n.3 2011reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392011005000056info:eu-repo/semantics/openAccessGelfuso,Maria VirginiaSilva,Pedro Vieira Gurgel daThomazini,Danieleng2011-10-18T00:00:00Zoai:scielo:S1516-14392011000300013Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-10-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Polypropylene matrix composites reinforced with coconut fibers |
title |
Polypropylene matrix composites reinforced with coconut fibers |
spellingShingle |
Polypropylene matrix composites reinforced with coconut fibers Gelfuso,Maria Virginia coconut fiber composite mechanical properties polypropylene |
title_short |
Polypropylene matrix composites reinforced with coconut fibers |
title_full |
Polypropylene matrix composites reinforced with coconut fibers |
title_fullStr |
Polypropylene matrix composites reinforced with coconut fibers |
title_full_unstemmed |
Polypropylene matrix composites reinforced with coconut fibers |
title_sort |
Polypropylene matrix composites reinforced with coconut fibers |
author |
Gelfuso,Maria Virginia |
author_facet |
Gelfuso,Maria Virginia Silva,Pedro Vieira Gurgel da Thomazini,Daniel |
author_role |
author |
author2 |
Silva,Pedro Vieira Gurgel da Thomazini,Daniel |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Gelfuso,Maria Virginia Silva,Pedro Vieira Gurgel da Thomazini,Daniel |
dc.subject.por.fl_str_mv |
coconut fiber composite mechanical properties polypropylene |
topic |
coconut fiber composite mechanical properties polypropylene |
description |
Polypropylene matrix composites reinforced with treated coconut fibers were produced. Fibers chemically treated (alkalization-CCUV samples) or mechanically treated (ultrasonic shockwave-CMUV samples) were dried using UV radiation. The goal was to combine low cost and eco-friendly treatments to improve fiber-matrix adhesion. Composite samples containing up to 20 vol. (%) of untreated and treated coconut fibers were taken from boxes fabricated by injection molding. Water absorption and mechanical properties were investigated according to ASTM D570-98 and ASTM D638-03, respectively. Electrical characterizations were carried out to identify applications of these composites in the electrical sector. NBR 10296-Electrical Tracking Standard (specific to industry applications) and conductivity measurements were obtained applying 5 kV DC to the samples. CMUV samples containing 5 vol. (%) fiber presented superior tensile strength values (σ~28 MPa) compared to the untreated fibers composite (σ~22 MPa) or alkali treatment (σ~24 MPa). However, CMUV composites containing 10 vol. (%) fiber presented best results for the electrical tracking test and electrical resistivity (3 × 10(7) Ω.m). The results suggest that composites reinforced with mechanically treated coconut fibers are suitable for electrical applications. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-01 |
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=S1516-14392011000300013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000300013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392011005000056 |
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.3 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_ |
1754212660434436096 |