Accelerated Aging Ultraviolet of a PET Nonwoven Geotextile and Thermoanalytical Evaluation

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFurnas Centrais Elétricas S.A.-
Autor(es): dc.contributorPontifical Catholic University of Goiás—PUC Goiás-
Autor(es): dc.creatorFranco, Yara Barbosa-
Autor(es): dc.creatorValentin, Clever Aparecido-
Autor(es): dc.creatorKobelnik, Marcelo-
Autor(es): dc.creatorda Silva, Jefferson Lins-
Autor(es): dc.creatorRibeiro, Clovis Augusto-
Autor(es): dc.creatorda Luz, Marta Pereira-
Data de aceite: dc.date.accessioned2025-08-21T21:32:08Z-
Data de disponibilização: dc.date.available2025-08-21T21:32:08Z-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2022-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/ma15124157-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241953-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241953-
Descrição: dc.descriptionNonwoven geotextiles are geosynthetic products that are highly susceptible to ultraviolet degradation because light can reach a large area of the material due to its fiber arrangement. Even with additives, which delay the degradation process, material decomposition still occurs, and therefore the product’s long-term durability can be affected. In this paper, the mechanical and thermal behavior of a commercial nonwoven polyester geotextile subjected to accelerated ultraviolet aging tests were evaluated. The deterioration was evaluated by comparing the physical properties (mass per unit area, thickness, and tensile strength) and thermal behavior (thermogravimetry—TG, thermomechanical analysis—TMA, and differential scanning calorimetry—DSC) before and after exposure times of 500 h and 1000 h. The results showed that the ultraviolet aging tests induced some damage in the polyester fibers, leading to the deterioration of their tensile strength. For 1000 h of exposure, in which the reduction was larger, scanning electron microscopy (SEM) found some superficial disruption of the fibers, indicative of damage. TG and DSC could not capture the effects of UV radiation on polymer degradation, unlike TMA. This latter technique was effective in showing the differences between specimens before and after UV exposure.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionAgência Nacional de Energia Elétrica-
Descrição: dc.descriptionSão Carlos School of Engineering—EESC University of São Paulo-USP-
Descrição: dc.descriptionDepartamento de Química Analítica Universidade Estadual Paulista—UNESP-
Descrição: dc.descriptionDepartment of Dam Safety and Technology Furnas Centrais Elétricas S.A., BR153, km 510, Zona Rural-
Descrição: dc.descriptionIndustrial and Systems Engineering Postgraduate Program (MEPROS) Pontifical Catholic University of Goiás—PUC Goiás-
Descrição: dc.descriptionDepartamento de Química Analítica Universidade Estadual Paulista—UNESP-
Descrição: dc.descriptionAgência Nacional de Energia Elétrica: PD-0394-1705/2017-
Idioma: dc.languageen-
Relação: dc.relationMaterials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectnonwoven geotextile-
Palavras-chave: dc.subjectphysical tests-
Palavras-chave: dc.subjectpolyester-
Palavras-chave: dc.subjectthermal analysis-
Título: dc.titleAccelerated Aging Ultraviolet of a PET Nonwoven Geotextile and Thermoanalytical Evaluation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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