Green polyurethane foams: Replacing petrochemical polyol with castor oil through factorial design

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorJosé Crespo Gonzales Faculty of Technology-
Autor(es): dc.creatorRepecka Alves, Lucas-
Autor(es): dc.creatorMiraveti Carriello, Giovanni-
Autor(es): dc.creatorManassés Pegoraro, Guilherme-
Autor(es): dc.creatorMoraes, Carlos Eduardo-
Autor(es): dc.creatorde Lourdes Rezende, Maira-
Autor(es): dc.creatorde Menezes, Aparecido Junior-
Data de aceite: dc.date.accessioned2025-08-21T16:08:41Z-
Data de disponibilização: dc.date.available2025-08-21T16:08:41Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10965-024-04077-2-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306139-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306139-
Descrição: dc.descriptionPolyurethanes are renowned for their incredible versatility. They are available in various forms, such as foams, thermoplastics, elastomers, and paints. These polymers are synthesized from two chemical substances: isocyanates and polyols. The increasing interest in the utilization of materials from renewable sources has spurred significant research in search of replacements for these two substances. For instance, castor oil can be used as a substitute for polyol, in addition to being an abundant renewable source. In this context, the objective of this study is to investigate how the variables temperature (2 °C, 24 °C, and 70 °C) and mass ratio (2:1, 1:1, and 1:2) influence the final properties of polyurethane foams. The foams were prepared using the one-shot method under controlled agitation. The results indicated that replacing polyol with vegetable oil was successful, as evidenced by the appearance of reference bands in the FTIR spectra. XRD and DSC analyses confirmed the amorphous nature of the polyurethanes, and TG tests demonstrated that a temperature of 70 °C significantly reduced the thermal stability of the foams, especially those based on vegetable sources. However, synthesis temperatures of 2 °C and 24 °C did not show considerable alteration in thermal stability. And the analysis of the effect of the sol fraction variables demonstrated that the polyol/isocyanate ratio has a significant effect, especially in vegetable-based foams.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionMaterials Laboratory Graduate Program in Materials Science. Federal University of São Carlos, SP-
Descrição: dc.descriptionDepartment of Materials and Technology. Faculty of Engineering and Sciences São Paulo State University Júlio de Mesquita Filho, SP-
Descrição: dc.descriptionPolymeric Materials Characterization Laboratory José Crespo Gonzales Faculty of Technology, SP-
Descrição: dc.descriptionDepartment of Materials and Technology. Faculty of Engineering and Sciences São Paulo State University Júlio de Mesquita Filho, SP-
Descrição: dc.descriptionCAPES: 001-
Idioma: dc.languageen-
Relação: dc.relationJournal of Polymer Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCastor oil-
Palavras-chave: dc.subjectMaterials-
Palavras-chave: dc.subjectPolymers-
Palavras-chave: dc.subjectPolyurethane-
Título: dc.titleGreen polyurethane foams: Replacing petrochemical polyol with castor oil through factorial design-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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