Dynamic mechanical and thermal mechanical analysis of Cyperus malaccensis sedge fiber reinforced GO-incorporated epoxy nanocomposites : a short communication.

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Autor(es): dc.creatorNeuba, Lucas de Mendonça-
Autor(es): dc.creatorPereira Junio, Raí Felipe-
Autor(es): dc.creatorSouza, Andressa Teixeira-
Autor(es): dc.creatorCarvalho, Magno Torres-
Autor(es): dc.creatorRibeiro, Maria Eduarda Araújo-
Autor(es): dc.creatorLazarus, Benjmin S.-
Autor(es): dc.creatorPereira, Artur Camposo-
Autor(es): dc.creatorMonteiro, Sergio Neves-
Data de aceite: dc.date.accessioned2025-08-21T15:15:27Z-
Data de disponibilização: dc.date.available2025-08-21T15:15:27Z-
Data de envio: dc.date.issued2024-11-17-
Data de envio: dc.date.issued2024-11-17-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/19000-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.jmrt.2023.03.075-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1008163-
Descrição: dc.descriptionThe sedge fiber extracted from the Cyperus malaccensis (CM) plant has recently been found as a promising reinforcement of polymer composites. Incorporation of 30 vol.% CM sedge fibers improved the impact resistance and tensile elastic modulus of epoxy composites with only slight differences in their thermogravimetric parameters. However, dynamic mechanical viscoelastic behavior is still needed to complete these composites character ization for possible engineering applications. This complementary research work extends the previous study to dynamic mechanical analysis (DMA) and thermal mechanical anal ysis (TMA) for GO-incorporated epoxy matrix nanocomposites incorporated with 30 vol.% of CM sedge fibers. In comparison to basic epoxy (control sample) the damping factor (tan d), as the ratio between DMA loss and storage moduli, is significantly increased from 0.45 to 0.75 for 30 vol.% CM fiber composite. TMA findings disclosed only slight variations in the glass transition temperature (119e124 C) as well as in the thermal expansion coeffi cient (168 x 10e6 to 220 x 10e6/ C). These DMA and TMA results confirms the promising CM sedge fiber reinforcing effect on GO-incorporated epoxy nanocomposites and its me chanical/thermal viscoelastic contribution.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/). Fonte: PDF do artigo.-
Palavras-chave: dc.subjectSedge fiber-
Palavras-chave: dc.subjectEpoxy composites-
Palavras-chave: dc.subjectDynamic mechanical analysis-
Palavras-chave: dc.subjectThermomechanical analys-
Título: dc.titleDynamic mechanical and thermal mechanical analysis of Cyperus malaccensis sedge fiber reinforced GO-incorporated epoxy nanocomposites : a short communication.-
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