Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders
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 UFRGS |
Texto Completo: | http://hdl.handle.net/10183/220412 |
Resumo: | Polymer composites in marine structures that operate under seawater environment may be seriously affected, reducing durability estimates. This work aims at evaluating the effect of seawater exposure at 80 ◦C for 7–28 days on filament-wound glass fiber/epoxy composite cylinders partially cured by passing saturated steam through them just after winding seeking a faster curing route. The winding angle is varied (±55, ±65 and ±75) and some of the cylinders are later post-cured for comparison. The unaged partially cured specimens do not reach complete curing, with a glass transition temperature (Tg) of 132 ◦C, below the Tg for the other samples (154–159 ◦C). Fully cured cylinders present mechanical properties slightly higher than partially cured ones. Moreover, aging in seawater for 7 days enhances the cross-linking degree of epoxy, with a positive effect on both hoop tensile strength and stiffness. Aging is, however, not critical for the radial compressive properties. |
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Antunes, Marcelo BarbieriAlmeida Júnior, José Humberto SantosAmico, Sandro Campos2021-05-04T04:26:27Z20212452-2139http://hdl.handle.net/10183/220412001124540Polymer composites in marine structures that operate under seawater environment may be seriously affected, reducing durability estimates. This work aims at evaluating the effect of seawater exposure at 80 ◦C for 7–28 days on filament-wound glass fiber/epoxy composite cylinders partially cured by passing saturated steam through them just after winding seeking a faster curing route. The winding angle is varied (±55, ±65 and ±75) and some of the cylinders are later post-cured for comparison. The unaged partially cured specimens do not reach complete curing, with a glass transition temperature (Tg) of 132 ◦C, below the Tg for the other samples (154–159 ◦C). Fully cured cylinders present mechanical properties slightly higher than partially cured ones. Moreover, aging in seawater for 7 days enhances the cross-linking degree of epoxy, with a positive effect on both hoop tensile strength and stiffness. Aging is, however, not critical for the radial compressive properties.application/pdfengComposites communications [recurso eletrônico]. Amsterdam. Vol. 22 (Dec. 2020), [Article] 100517 , 6 p.CompósitosÁgua do marPropriedades físicasPropriedades mecânicas dos materiaisComposite cylinderGFRP compositesAgingFilament windingCuring and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylindersEstrangeiroinfo: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:UFRGSTEXT001124540.pdf.txt001124540.pdf.txtExtracted Texttext/plain22792http://www.lume.ufrgs.br/bitstream/10183/220412/2/001124540.pdf.txtd6aa25fb5060090710b5319cff32f8d5MD52ORIGINAL001124540.pdfTexto completo (inglês)application/pdf15974563http://www.lume.ufrgs.br/bitstream/10183/220412/1/001124540.pdf52d66b83c5a9f2ad8a0cb9dc4ce4cbeeMD5110183/2204122021-05-07 04:55:31.156977oai:www.lume.ufrgs.br:10183/220412Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:55:31Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
title |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
spellingShingle |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders Antunes, Marcelo Barbieri Compósitos Água do mar Propriedades físicas Propriedades mecânicas dos materiais Composite cylinder GFRP composites Aging Filament winding |
title_short |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
title_full |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
title_fullStr |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
title_full_unstemmed |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
title_sort |
Curing and seawater aging effects on mechanical and physical properties of glass/epoxy filament wound cylinders |
author |
Antunes, Marcelo Barbieri |
author_facet |
Antunes, Marcelo Barbieri Almeida Júnior, José Humberto Santos Amico, Sandro Campos |
author_role |
author |
author2 |
Almeida Júnior, José Humberto Santos Amico, Sandro Campos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Antunes, Marcelo Barbieri Almeida Júnior, José Humberto Santos Amico, Sandro Campos |
dc.subject.por.fl_str_mv |
Compósitos Água do mar Propriedades físicas Propriedades mecânicas dos materiais |
topic |
Compósitos Água do mar Propriedades físicas Propriedades mecânicas dos materiais Composite cylinder GFRP composites Aging Filament winding |
dc.subject.eng.fl_str_mv |
Composite cylinder GFRP composites Aging Filament winding |
description |
Polymer composites in marine structures that operate under seawater environment may be seriously affected, reducing durability estimates. This work aims at evaluating the effect of seawater exposure at 80 ◦C for 7–28 days on filament-wound glass fiber/epoxy composite cylinders partially cured by passing saturated steam through them just after winding seeking a faster curing route. The winding angle is varied (±55, ±65 and ±75) and some of the cylinders are later post-cured for comparison. The unaged partially cured specimens do not reach complete curing, with a glass transition temperature (Tg) of 132 ◦C, below the Tg for the other samples (154–159 ◦C). Fully cured cylinders present mechanical properties slightly higher than partially cured ones. Moreover, aging in seawater for 7 days enhances the cross-linking degree of epoxy, with a positive effect on both hoop tensile strength and stiffness. Aging is, however, not critical for the radial compressive properties. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-05-04T04:26:27Z |
dc.date.issued.fl_str_mv |
2021 |
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/10183/220412 |
dc.identifier.issn.pt_BR.fl_str_mv |
2452-2139 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001124540 |
identifier_str_mv |
2452-2139 001124540 |
url |
http://hdl.handle.net/10183/220412 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Composites communications [recurso eletrônico]. Amsterdam. Vol. 22 (Dec. 2020), [Article] 100517 , 6 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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