Studies of curing cycle of carbon fiber/epoxy resins (8552® and M21®) prepregs based on thermal and rheological analyses

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dc.contributor.authorSilva, Sheila Marques [UNESP]
dc.contributor.authorSilva, Carolina Paiva Nascimento
dc.contributor.authorde Carvalho Silva, Thiago
dc.contributor.authorRezende, Mirabel Cerqueira
dc.contributor.authorBotelho, Edson Cocchieri [UNESP]
dc.contributor.authorCosta, Michelle Leali [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionLEL/IPT
dc.contributor.institutionFederal Center for Technological Education Celso Suckow da Fonseca
dc.date.accessioned2023-07-29T14:12:36Z
dc.date.available2023-07-29T14:12:36Z
dc.date.issued2022-01-01
dc.description.abstractThermal and rheological characterizations were performed on prepreg produced with two different commercial epoxy resins - M21® and 8552® - aiming to study and optimize the curing cycle of structural components used in aerospace industry. Characterizations were performed by differential scanning calorimetry (DSC), rheology and dynamic mechanical analysis techniques were assessed and the results were correlated and supported by Fourier Transform Infrared spectroscopy. Additionally, to heating rates suggested by the material supplier, DSC analysis allowed to evaluate further heating rates: 2, 5, 10, 15 and 20 °C/min. Materials presented the n fractional order kinetic of cure and have in its formulation the presence of thermoplastics, in addition to epoxy and amine. Results confirmed that the best heating rates for processing both materials are the lower ones, as they result in a better control of the reactions between chemical compounds involved and the physical changes that are part of curing process stages. Results have analytically confirmed the suggested proposal for curing cycle from supplier is the best choice for materials involved.en
dc.description.affiliationSão Paulo State University Department of Materials and Technology
dc.description.affiliationFederal University of São Paulo Institute of Science and Technology
dc.description.affiliationLightweight Structures Laboratory LEL/IPT
dc.description.affiliationFederal Center for Technological Education Celso Suckow da Fonseca
dc.description.affiliationUnespSão Paulo State University Department of Materials and Technology
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipDivision of Chemistry
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2017/16970-0
dc.description.sponsorshipIdCNPq: 304876/2020-8
dc.description.sponsorshipIdCNPq: 306576/2020-1
dc.format.extent83-99
dc.identifierhttp://dx.doi.org/10.26850/1678-4618EQJ.V47.2SI.2022.P83-99
dc.identifier.citationEcletica Quimica, v. 47, p. 83-99.
dc.identifier.doi10.26850/1678-4618EQJ.V47.2SI.2022.P83-99
dc.identifier.issn1678-4618
dc.identifier.issn0100-4670
dc.identifier.scopus2-s2.0-85138591807
dc.identifier.urihttp://hdl.handle.net/11449/249185
dc.language.isoeng
dc.relation.ispartofEcletica Quimica
dc.sourceScopus
dc.subjectcure kinetic
dc.subjectDMA
dc.subjectDSC
dc.subjectFTIR
dc.subjectrheology
dc.titleStudies of curing cycle of carbon fiber/epoxy resins (8552® and M21®) prepregs based on thermal and rheological analysesen
dc.typeArtigo

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