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

Teixeira, Linconl Araújo; Dalla Júnior, L. Vilson; Luz, Sandra Maria da

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Campo DC	Valor	Idioma
dc.contributor.author	Teixeira, Linconl Araújo	-
dc.contributor.author	Dalla Júnior, L. Vilson	-
dc.contributor.author	Luz, Sandra Maria da	-
dc.date.accessioned	2022-08-03T11:58:27Z	-
dc.date.available	2022-08-03T11:58:27Z	-
dc.date.issued	2020-12-21	-
dc.identifier.citation	TEIXEIRA, Linconl A.; DALLA JUNIOR, L. Vilson; LUZ, Sandra Maria da. Chemical treatment of curaua fibres and its effect on the mechanical performance of fibre/polyester composites. Plastics, Rubber and Composites Macromolecular Engineering, v. 50, n. 4, 2021. DOI: https://doi.org/10.1080/14658011.2020.1862978.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/44392	-
dc.language.iso	Inglês	pt_BR
dc.publisher	Taylor & Francis	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Chemical treatment of curaua fibres and its effect on the mechanical performance of fibre/polyester composites	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Curauá	pt_BR
dc.subject.keyword	Poliéster	pt_BR
dc.subject.keyword	Tratamentos alcalinos e silano	pt_BR
dc.subject.keyword	Caracterização química	pt_BR
dc.subject.keyword	Difração de raios X (XRD)	pt_BR
dc.subject.keyword	Calorimetria de varredura diferencial (DSC)	pt_BR
dc.subject.keyword	Teste de tração	pt_BR
dc.subject.keyword	Teste de impacto	pt_BR
dc.identifier.doi	https://doi.org/10.1080/14658011.2020.1862978	pt_BR
dc.relation.publisherversion	https://www.tandfonline.com/doi/full/10.1080/14658011.2020.1862978	pt_BR
dc.description.abstract1	This 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.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-2922-3027	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0001-5557-7331	-
dc.identifier.orcid	https://orcid.org/0000-0002-2223-0021	-
dc.description.unidade	Faculdade UnB Gama (FGA)	-
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