Skip navigation
Please use this identifier to cite or link to this item: https://repositorio.unb.br/handle/10482/44392
Files in This Item:
There are no files associated with this item.
Title: Chemical treatment of curaua fibres and its effect on the mechanical performance of fibre/polyester composites
Authors: Teixeira, Linconl Araújo
Dalla Júnior, L. Vilson
Luz, Sandra Maria da
metadata.dc.identifier.orcid: https://orcid.org/0000-0002-2922-3027
https://orcid.org/0000-0001-5557-7331
https://orcid.org/0000-0002-2223-0021
Assunto:: Curauá
Poliéster
Tratamentos alcalinos e silano
Caracterização química
Difração de raios X (XRD)
Calorimetria de varredura diferencial (DSC)
Teste de tração
Teste de impacto
Issue Date: 21-Dec-2020
Publisher: Taylor & Francis
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.
Abstract: 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.
DOI: https://doi.org/10.1080/14658011.2020.1862978
metadata.dc.relation.publisherversion: https://www.tandfonline.com/doi/full/10.1080/14658011.2020.1862978
Appears in Collections:FGA - Artigos publicados em periódicos

Show full item record Recommend this item " class="statisticsLink btn btn-primary" href="/handle/10482/44392/statistics">



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.