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Impact and Tensile Properties of Polyester Nanocomposites Reinforced with Conifer Fiber Cellulose Nanocrystal: A Previous Study Extension.
Maradini, Grazielle da Silva; Oliveira, Michel Picanço; Carreira, Lilian Gasparelli; Guimarães, Damaris; Profeti, Demetrius; Dias Júnior, Ananias Francisco; Boschetti, Walter Torezani Neto; Oliveira, Bárbara Ferreira de; Pereira, Artur Camposo; Monteiro, Sergio Neves.
Afiliação
  • Maradini GDS; Forest and Wood Sciences Department, Federal University of Espírito Santo, Jeronimo Monteiro 29550-000, Brazil.
  • Oliveira MP; Forest and Wood Sciences Department, Federal University of Espírito Santo, Jeronimo Monteiro 29550-000, Brazil.
  • Carreira LG; Rural Engineering Department, Federal University of Espírito Santo, Alto Universitário, sn., Alegre 29500-000, Brazil.
  • Guimarães D; Rural Engineering Department, Federal University of Espírito Santo, Alto Universitário, sn., Alegre 29500-000, Brazil.
  • Profeti D; Chemistry and Physics Department, Federal University of Espírito Santo, Alto Universitário, sn., Alegre 29500-000, Brazil.
  • Dias Júnior AF; Forest and Wood Sciences Department, Federal University of Espírito Santo, Jeronimo Monteiro 29550-000, Brazil.
  • Boschetti WTN; Department of Forest Engineering, Federal University of Viçosa, Viçosa 36570-900, Brazil.
  • Oliveira BF; Advanced Materials Department, Northern Fluminense State University Campos dos Goytacazes, Campos dos Goytacazes 28013-602, Brazil.
  • Pereira AC; Military Institute of Engineering-IME, Materials Science Program, Praça General Tibúrcio 80, Urca, Rio de Janeiro 22290-270, Brazil.
  • Monteiro SN; Military Institute of Engineering-IME, Materials Science Program, Praça General Tibúrcio 80, Urca, Rio de Janeiro 22290-270, Brazil.
Polymers (Basel) ; 13(11)2021 Jun 05.
Article em En | MEDLINE | ID: mdl-34198848
In a recent paper, novel polyester nanocomposites reinforced with up to 3 wt% of cellulose nanocrystals (CNCs) extracted from conifer fiber were characterized for their crystallinity index, water absorption, and flexural and thermal resistance. The use of this novel class of nanocomposites as a possible substitute for conventional glass fiber composites (fiberglass) was then suggested, especially for the 1 and 2 wt% CNC composites due to promising bending, density, and water absorption results. However, for effective engineering applications requiring impact and tensile performance, the corresponding properties need to be evaluated. Therefore, this extension of the previous work presents additional results on Izod and tensile tests of 1 and 2 wt% CNC-reinforced polyester composites, together with a comparative cost analysis with fiberglass. The chemical effect caused by incorporation of CNCs into polyester was also investigated by FTIR. In comparison to the neat polyester, the Izod impact energy increased 50% and 16% for the 1 and 2 wt% composites, respectively. On the other hand, the tensile strength and Young's modulus remained constant within the ANOVA statistical analysis. FTIR analysis failed to reveal any chemical modification caused by up to 2 wt% CNC incorporation. The present impact and tensile results corroborate the promising substitution of a polyester composite reinforced with very low amount of CNCs for common fiberglass in engineering application.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Polymers (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Polymers (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça