The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10443-020-09863-x http://hdl.handle.net/11449/205729 |
Resumo: | The purpose of this work is to investigate how the crystallinity degree of carbon fiber / poly(ether-ether-ketone (CF/PEEK) composites affects their performance when exposed to ultraviolet radiation, hygrothermal, and salt fog conditionings. Thermal characterization was performed by differential scanning calorimetry (DSC) and dynamical mechanical analyses (DMA), whereas interlaminar shear strength (ILSS), impulse excitation technique and compression tests were employed for mechanical characterization. According to the results obtained in this work, the CF/PEEK laminates with higher crystalline contents presented significantly lower water absorption. An increase in the crystallinity degree throughout the conditionings was observed for the CF/PEEK samples with lower crystalline contents, as a result of chemi-crystallization, or high temperatures, and/or water uptake. Moreover, the crystalline content also showed to affect the severity of the degradation for the UV/condensation conditioning, with the samples with lower degree of crystallinity being the most resistant. No significant changes have been observed for the mechanical properties evaluated. |
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Repositório Institucional da UNESP |
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The Influence of Crystallinity on the Weather Resistance of CF/PEEK CompositesInterfaceStructural compositesThermoplastic laminatesThe purpose of this work is to investigate how the crystallinity degree of carbon fiber / poly(ether-ether-ketone (CF/PEEK) composites affects their performance when exposed to ultraviolet radiation, hygrothermal, and salt fog conditionings. Thermal characterization was performed by differential scanning calorimetry (DSC) and dynamical mechanical analyses (DMA), whereas interlaminar shear strength (ILSS), impulse excitation technique and compression tests were employed for mechanical characterization. According to the results obtained in this work, the CF/PEEK laminates with higher crystalline contents presented significantly lower water absorption. An increase in the crystallinity degree throughout the conditionings was observed for the CF/PEEK samples with lower crystalline contents, as a result of chemi-crystallization, or high temperatures, and/or water uptake. Moreover, the crystalline content also showed to affect the severity of the degradation for the UV/condensation conditioning, with the samples with lower degree of crystallinity being the most resistant. No significant changes have been observed for the mechanical properties evaluated.Department of Mechanical Engineering McGill University, 817 Sherbrook Street WestDepartment of Materials and Technology Universidade Estadual Paulista - UNESP, Av. Ariberto Pereira da CunhaInstitute of Science and Technology Universidade Federal de Sao Paulo - UNIFESP R. TalimDepartment of Materials and Technology Universidade Estadual Paulista - UNESP, Av. Ariberto Pereira da CunhaMcGill UniversityUniversidade Estadual Paulista (Unesp)Universidade Federal de São Paulo (UNIFESP)Batista, Natassia L. [UNESP]Rezende, Mirabel C.C.Botelho, Edson [UNESP]2021-06-25T10:20:18Z2021-06-25T10:20:18Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article235-246http://dx.doi.org/10.1007/s10443-020-09863-xApplied Composite Materials, v. 28, n. 1, p. 235-246, 2021.1573-48970929-189Xhttp://hdl.handle.net/11449/20572910.1007/s10443-020-09863-x2-s2.0-85099301133Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Composite Materialsinfo:eu-repo/semantics/openAccess2021-10-22T16:05:38Zoai:repositorio.unesp.br:11449/205729Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T16:05:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
title |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
spellingShingle |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites Batista, Natassia L. [UNESP] Interface Structural composites Thermoplastic laminates |
title_short |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
title_full |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
title_fullStr |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
title_full_unstemmed |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
title_sort |
The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites |
author |
Batista, Natassia L. [UNESP] |
author_facet |
Batista, Natassia L. [UNESP] Rezende, Mirabel C. C.Botelho, Edson [UNESP] |
author_role |
author |
author2 |
Rezende, Mirabel C. C.Botelho, Edson [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
McGill University Universidade Estadual Paulista (Unesp) Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Batista, Natassia L. [UNESP] Rezende, Mirabel C. C.Botelho, Edson [UNESP] |
dc.subject.por.fl_str_mv |
Interface Structural composites Thermoplastic laminates |
topic |
Interface Structural composites Thermoplastic laminates |
description |
The purpose of this work is to investigate how the crystallinity degree of carbon fiber / poly(ether-ether-ketone (CF/PEEK) composites affects their performance when exposed to ultraviolet radiation, hygrothermal, and salt fog conditionings. Thermal characterization was performed by differential scanning calorimetry (DSC) and dynamical mechanical analyses (DMA), whereas interlaminar shear strength (ILSS), impulse excitation technique and compression tests were employed for mechanical characterization. According to the results obtained in this work, the CF/PEEK laminates with higher crystalline contents presented significantly lower water absorption. An increase in the crystallinity degree throughout the conditionings was observed for the CF/PEEK samples with lower crystalline contents, as a result of chemi-crystallization, or high temperatures, and/or water uptake. Moreover, the crystalline content also showed to affect the severity of the degradation for the UV/condensation conditioning, with the samples with lower degree of crystallinity being the most resistant. No significant changes have been observed for the mechanical properties evaluated. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:20:18Z 2021-06-25T10:20:18Z 2021-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10443-020-09863-x Applied Composite Materials, v. 28, n. 1, p. 235-246, 2021. 1573-4897 0929-189X http://hdl.handle.net/11449/205729 10.1007/s10443-020-09863-x 2-s2.0-85099301133 |
url |
http://dx.doi.org/10.1007/s10443-020-09863-x http://hdl.handle.net/11449/205729 |
identifier_str_mv |
Applied Composite Materials, v. 28, n. 1, p. 235-246, 2021. 1573-4897 0929-189X 10.1007/s10443-020-09863-x 2-s2.0-85099301133 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied Composite Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
235-246 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965106763726848 |