The effect of fluorination of aramid fibers on vinyl ester composites
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/220512 |
Resumo: | Composite materials are associated with low densities and high mechanical performance, thus favoring protection of personnel, military vehicles and aircrafts. Polyaramid fibers like Kevlar®, are well‐known for their ballistic performance, but their chemically inert and smooth surface hinders interaction with polymeric resins. The objective of this work is to surface treat aramid fibers with fluoride to improve fiber reactivity and interfacial adhesion with a thermoset matrix. The Kevlar®/vinyl ester composites were prepared by compression molding and characterized. Composites with treated fibers had lower void content and higher glass transition temperature, stiffness, storage and loss module. Nevertheless, they showed lower tensile strength, impact strength, damping, and adhesion factors. The treated fiber composites also presented higher adhesion between fibers and matrix, resulting in less chain segment movement and higher energy dissipation. |
id |
UFRGS-2_c36644492dea22379c6670a29575caf0 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/220512 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Wirti, MariluBiondo, Gabriel Roman RosRomanzini, DaianeAmico, Sandro CamposZattera, Ademir José2021-05-04T04:27:57Z20191548-0569http://hdl.handle.net/10183/220512001124589Composite materials are associated with low densities and high mechanical performance, thus favoring protection of personnel, military vehicles and aircrafts. Polyaramid fibers like Kevlar®, are well‐known for their ballistic performance, but their chemically inert and smooth surface hinders interaction with polymeric resins. The objective of this work is to surface treat aramid fibers with fluoride to improve fiber reactivity and interfacial adhesion with a thermoset matrix. The Kevlar®/vinyl ester composites were prepared by compression molding and characterized. Composites with treated fibers had lower void content and higher glass transition temperature, stiffness, storage and loss module. Nevertheless, they showed lower tensile strength, impact strength, damping, and adhesion factors. The treated fiber composites also presented higher adhesion between fibers and matrix, resulting in less chain segment movement and higher energy dissipation.application/pdfengPolymer composites [recurso eletrônico]. Hoboken, N.J. Vol. 40, no. 5 (May 2019), p. 2095-2102Fibras de aramidaTratamento químicoFlúorThe effect of fluorination of aramid fibers on vinyl ester compositesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001124589.pdf.txt001124589.pdf.txtExtracted Texttext/plain25228http://www.lume.ufrgs.br/bitstream/10183/220512/2/001124589.pdf.txt8a594b052942100f60a5b3828e389396MD52ORIGINAL001124589.pdfTexto completo (inglês)application/pdf5876710http://www.lume.ufrgs.br/bitstream/10183/220512/1/001124589.pdf00b980c1decc0c8df18872c540cb56e5MD5110183/2205122021-05-07 04:52:33.017341oai:www.lume.ufrgs.br:10183/220512Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:52:33Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The effect of fluorination of aramid fibers on vinyl ester composites |
title |
The effect of fluorination of aramid fibers on vinyl ester composites |
spellingShingle |
The effect of fluorination of aramid fibers on vinyl ester composites Wirti, Marilu Fibras de aramida Tratamento químico Flúor |
title_short |
The effect of fluorination of aramid fibers on vinyl ester composites |
title_full |
The effect of fluorination of aramid fibers on vinyl ester composites |
title_fullStr |
The effect of fluorination of aramid fibers on vinyl ester composites |
title_full_unstemmed |
The effect of fluorination of aramid fibers on vinyl ester composites |
title_sort |
The effect of fluorination of aramid fibers on vinyl ester composites |
author |
Wirti, Marilu |
author_facet |
Wirti, Marilu Biondo, Gabriel Roman Ros Romanzini, Daiane Amico, Sandro Campos Zattera, Ademir José |
author_role |
author |
author2 |
Biondo, Gabriel Roman Ros Romanzini, Daiane Amico, Sandro Campos Zattera, Ademir José |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Wirti, Marilu Biondo, Gabriel Roman Ros Romanzini, Daiane Amico, Sandro Campos Zattera, Ademir José |
dc.subject.por.fl_str_mv |
Fibras de aramida Tratamento químico Flúor |
topic |
Fibras de aramida Tratamento químico Flúor |
description |
Composite materials are associated with low densities and high mechanical performance, thus favoring protection of personnel, military vehicles and aircrafts. Polyaramid fibers like Kevlar®, are well‐known for their ballistic performance, but their chemically inert and smooth surface hinders interaction with polymeric resins. The objective of this work is to surface treat aramid fibers with fluoride to improve fiber reactivity and interfacial adhesion with a thermoset matrix. The Kevlar®/vinyl ester composites were prepared by compression molding and characterized. Composites with treated fibers had lower void content and higher glass transition temperature, stiffness, storage and loss module. Nevertheless, they showed lower tensile strength, impact strength, damping, and adhesion factors. The treated fiber composites also presented higher adhesion between fibers and matrix, resulting in less chain segment movement and higher energy dissipation. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2021-05-04T04:27:57Z |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/220512 |
dc.identifier.issn.pt_BR.fl_str_mv |
1548-0569 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001124589 |
identifier_str_mv |
1548-0569 001124589 |
url |
http://hdl.handle.net/10183/220512 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Polymer composites [recurso eletrônico]. Hoboken, N.J. Vol. 40, no. 5 (May 2019), p. 2095-2102 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/220512/2/001124589.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/220512/1/001124589.pdf |
bitstream.checksum.fl_str_mv |
8a594b052942100f60a5b3828e389396 00b980c1decc0c8df18872c540cb56e5 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801225015768645632 |