Chemical treatment of curaua fibres and its effect on the mechanical performance of fibre/polyester composites

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorTeixeira, Linconl Araújo-
Autor(es): dc.creatorDalla Júnior, L. Vilson-
Autor(es): dc.creatorLuz, Sandra Maria da-
Data de aceite: dc.date.accessioned2024-07-22T12:28:46Z-
Data de disponibilização: dc.date.available2024-07-22T12:28:46Z-
Data de envio: dc.date.issued2022-08-03-
Data de envio: dc.date.issued2022-08-03-
Data de envio: dc.date.issued2020-12-20-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/44392-
Fonte completa do material: dc.identifierhttps://doi.org/10.1080/14658011.2020.1862978-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0002-2922-3027-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0001-5557-7331-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0002-2223-0021-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/804544-
Descrição: dc.descriptionThis study investigated the influence of the surface treatment of curaua fibres (Ananas erectifolius) on the morphological, thermal and mechanical properties of polyester composites when the treated fibres (10 wt-%) were added. The following treatment agents were assessed: 10% Ba(OH)2, 14% Ca(OH)2, 5% NaOH, 10% KOH and 5% silane. The treatments removed amorphous components, thereby increasing the crystallinity of the fibres. Among the alkali treatments, KOH gave the highest crystallinity index (67.09%), Ca(OH)2 had the best tensile strength (19 MPa) and Ca(OH)2 treatment resulted in the highest composite thermal stability (315°C). Fibres treated with Ba(OH)2 resulted in the composite with the greatest resistance to impact (55 vs 10 J m−1 for the neat matrix). Finally, the silane-treated fibres resulted in composites with a better performance than the other treatments. There was a prominent pattern of improved performance for the silane-treated fibre composites in all the analyses performed in this study.-
Descrição: dc.descriptionFaculdade UnB Gama (FGA)-
Publicador: dc.publisherTaylor & Francis-
Relação: dc.relationhttps://www.tandfonline.com/doi/full/10.1080/14658011.2020.1862978-
Direitos: dc.rightsAcesso Restrito-
Palavras-chave: dc.subjectCurauá-
Palavras-chave: dc.subjectPoliéster-
Palavras-chave: dc.subjectTratamentos alcalinos e silano-
Palavras-chave: dc.subjectCaracterização química-
Palavras-chave: dc.subjectDifração de raios X (XRD)-
Palavras-chave: dc.subjectCalorimetria de varredura diferencial (DSC)-
Palavras-chave: dc.subjectTeste de tração-
Palavras-chave: dc.subjectTeste de impacto-
Título: dc.titleChemical treatment of curaua fibres and its effect on the mechanical performance of fibre/polyester composites-
Aparece nas coleções:Repositório Institucional – UNB

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