The Influence of Crystallinity on the Weather Resistance of CF/PEEK Composites

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dc.contributor.authorBatista, Natassia L. [UNESP]
dc.contributor.authorRezende, Mirabel C.
dc.contributor.authorC.Botelho, Edson [UNESP]
dc.contributor.institutionMcGill University
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2021-06-25T10:20:18Z
dc.date.available2021-06-25T10:20:18Z
dc.date.issued2021-02-01
dc.description.abstractThe purpose of this work is to investigate how the crystallinity degree of carbon fiber / poly(ether-ether-ketone (CF/PEEK) composites affects their performance when exposed to ultraviolet radiation, hygrothermal, and salt fog conditionings. Thermal characterization was performed by differential scanning calorimetry (DSC) and dynamical mechanical analyses (DMA), whereas interlaminar shear strength (ILSS), impulse excitation technique and compression tests were employed for mechanical characterization. According to the results obtained in this work, the CF/PEEK laminates with higher crystalline contents presented significantly lower water absorption. An increase in the crystallinity degree throughout the conditionings was observed for the CF/PEEK samples with lower crystalline contents, as a result of chemi-crystallization, or high temperatures, and/or water uptake. Moreover, the crystalline content also showed to affect the severity of the degradation for the UV/condensation conditioning, with the samples with lower degree of crystallinity being the most resistant. No significant changes have been observed for the mechanical properties evaluated.en
dc.description.affiliationDepartment of Mechanical Engineering McGill University, 817 Sherbrook Street West
dc.description.affiliationDepartment of Materials and Technology Universidade Estadual Paulista - UNESP, Av. Ariberto Pereira da Cunha
dc.description.affiliationInstitute of Science and Technology Universidade Federal de Sao Paulo - UNIFESP R. Talim
dc.description.affiliationUnespDepartment of Materials and Technology Universidade Estadual Paulista - UNESP, Av. Ariberto Pereira da Cunha
dc.format.extent235-246
dc.identifierhttp://dx.doi.org/10.1007/s10443-020-09863-x
dc.identifier.citationApplied Composite Materials, v. 28, n. 1, p. 235-246, 2021.
dc.identifier.doi10.1007/s10443-020-09863-x
dc.identifier.issn1573-4897
dc.identifier.issn0929-189X
dc.identifier.scopus2-s2.0-85099301133
dc.identifier.urihttp://hdl.handle.net/11449/205729
dc.language.isoeng
dc.relation.ispartofApplied Composite Materials
dc.sourceScopus
dc.subjectInterface
dc.subjectStructural composites
dc.subjectThermoplastic laminates
dc.titleThe Influence of Crystallinity on the Weather Resistance of CF/PEEK Compositesen
dc.typeArtigo

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