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

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorLEL/IPT-
Autor(es): dc.contributorFederal Center for Technological Education Celso Suckow da Fonseca-
Autor(es): dc.creatorSilva, Sheila Marques-
Autor(es): dc.creatorSilva, Carolina Paiva Nascimento-
Autor(es): dc.creatorde Carvalho Silva, Thiago-
Autor(es): dc.creatorRezende, Mirabel Cerqueira-
Autor(es): dc.creatorBotelho, Edson Cocchieri-
Autor(es): dc.creatorCosta, Michelle Leali-
Data de aceite: dc.date.accessioned2025-08-21T17:16:36Z-
Data de disponibilização: dc.date.available2025-08-21T17:16:36Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.26850/1678-4618EQJ.V47.2SI.2022.P83-99-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249185-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249185-
Descrição: dc.descriptionThermal 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.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDivision of Chemistry-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSão Paulo State University Department of Materials and Technology-
Descrição: dc.descriptionFederal University of São Paulo Institute of Science and Technology-
Descrição: dc.descriptionLightweight Structures Laboratory LEL/IPT-
Descrição: dc.descriptionFederal Center for Technological Education Celso Suckow da Fonseca-
Descrição: dc.descriptionSão Paulo State University Department of Materials and Technology-
Descrição: dc.descriptionFAPESP: 2017/16970-0-
Descrição: dc.descriptionCNPq: 304876/2020-8-
Descrição: dc.descriptionCNPq: 306576/2020-1-
Formato: dc.format83-99-
Idioma: dc.languageen-
Relação: dc.relationEcletica Quimica-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcure kinetic-
Palavras-chave: dc.subjectDMA-
Palavras-chave: dc.subjectDSC-
Palavras-chave: dc.subjectFTIR-
Palavras-chave: dc.subjectrheology-
Título: dc.titleStudies of curing cycle of carbon fiber/epoxy resins (8552® and M21®) prepregs based on thermal and rheological analyses-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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