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Effect of Hydrothermal Aging on Damping Properties in Sisal Mat-Reinforced Polyester Composites.
Silva, Moisés F E; Silva, Beatriz R; Marques, Adrielle N; Mattedi, Silvana; Carvalho, Ricardo F.
Afiliação
  • Silva MFE; Construction and Structures Department, Federal University of Bahia, Salvador 40210-630, BA, Brazil.
  • Silva BR; SENAI Institute of Technology in Civil Construction, SENAI CIMATEC, Salvador 41650-010, BA, Brazil.
  • Marques AN; Construction and Structures Department, Federal University of Bahia, Salvador 40210-630, BA, Brazil.
  • Mattedi S; Construction and Structures Department, Federal University of Bahia, Salvador 40210-630, BA, Brazil.
  • Carvalho RF; Chemical Engineering Graduate Program, Federal University of Bahia, Salvador 40210-630, BA, Brazil.
Polymers (Basel) ; 16(2)2024 Jan 05.
Article em En | MEDLINE | ID: mdl-38256965
ABSTRACT
Hydrothermal aging is a matter of considerable concern for natural fiber-reinforced polymers; it can alter dimensional stability and induce microcracks and macro strain on the composite structure. This study applied a sorption kinetic model and examined the effects of water on the damping factor of sisal mat-reinforced polyester composites. The experimental data were fitted well using a Boltzmann sigmoid function, suggesting a promising first step toward kinetic water sorption modeling. Additionally, a damping test was carried out using the impulse excitation technique, highlighting the composite material's dynamic response under varying water absorption conditions. The result showed that damping exhibited sensitivity to water absorption, increasing significantly during the first 24 h of immersion in water, then remained steady over time, inferring a critical time interval. An empirical model proved satisfactory with the correlation coefficient for sorption rates and damping of sisal mat polymeric composites.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Polymers (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Polymers (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça