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PROPERTIES OF FIBROUS COMPOSITES WITH POLYESTER: A COMPARATIVE ANALYSIS BETWEEN SISAL FIBER AND PET

PROPRIEDADES DE COMPÓSITOS FIBROSOS COM POLIÉSTER: UMA ANÁLISE COMPARATIVA ENTRE FIBRA DE SISAL E PET

Moreira, Matheus Vinicius Falcao ; Silva, Lorrane Carneiro Laranjeira; Azevedo, Joyce Batista ; Cardoso, Pollyana da Silva Melo ; Barbosa, Josiane Dantas Viana ; Araujo, Daniel Vianna Goes ;

Artigo completo:

Fiber-reinforced composites represent 75% of the application of these materials in several industrial segments. However, it seeks to improve technical characteristics and reduce the environmental impact through the use of sustainable raw materials such as natural fibers and other fibers from industrial waste. In this sense, the objective of this work was to study and compare the mechanical properties of polyester composites (PL) reinforced with natural sisal fiber and residues of polyethylene terephthalate (PET) synthetic fibers. Initially, the moisture and morphology of the fibers were evaluated. Composites with PL matrix were obtained and the fiber concentration was varied by 1%, 3%, and 5% by weight. In the composites, the mechanical properties under flexion and impact resistance were evaluated. It can be concluded that the level of reinforcement with sisal fibers did not significantly affect the mechanical properties evaluated. However, the PET fiber provided significant improvements in the properties of the composite. Thus, it is concluded that composites reinforced with PET fiber residue have advantages in the development of new material with sustainable characteristics.

Artigo completo:

Compósitos reforçados com fibras representam 75% da aplicação destes materiais em diversos segmentos industriais. No entanto, busca-se aprimorar as características técnicas e redução do impacto ambiental através da utilização de matérias primas sustentáveis como fibras naturais e outras fibras oriundas de resíduos industriais. Neste sentido, o objetivo deste trabalho foi estudar e comparar as propriedades mecânicas de compósitos de poliéster (PL) reforçados com fibra natural de sisal e resíduos de fibras sintéticas de politereftalato de etileno (PET). Inicialmente a umidade e morfologia das fibras foram avaliadas. Obteve-se compósitos com matriz de PL e variou-se a concentração das fibras em 1%, 3% e 5% em massa. Nos compósitos foram avaliadas as propriedades mecânicas sob flexão e resistência ao impacto. Pode-se concluir que o nível de reforço com fibras de sisal não afetou significativamente as propriedades mecânicas avaliadas. Todavia, a fibra de PET proporcionou melhorias significativas nas propriedades do compósito. Dessa forma, conclui-se que os compósitos reforçados com resíduo de fibra de PET apresentam vantagens no desenvolvimento de um novo material com características sustentáveis

Palavras-chave: Sisal fiber; PET fiber; Polymeric composites; Mechanical properties,

Palavras-chave: Fibra de sisal; Fibra de PET; Compósitos poliméricos; Propriedades mecânicas.,

DOI: 10.5151/siintec2020-PROPERTIESOFFIBROUS

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Como citar:

Moreira, Matheus Vinicius Falcao ; Silva, Lorrane Carneiro Laranjeira; Azevedo, Joyce Batista ; Cardoso, Pollyana da Silva Melo ; Barbosa, Josiane Dantas Viana ; Araujo, Daniel Vianna Goes ; "PROPERTIES OF FIBROUS COMPOSITES WITH POLYESTER: A COMPARATIVE ANALYSIS BETWEEN SISAL FIBER AND PET", p. 199-207 . In: Anais do VI Simpósio Internacional de Inovação e Tecnologia. São Paulo: Blucher, 2020.
ISSN 2357-7592, ISBN: 2357-7592
DOI 10.5151/siintec2020-PROPERTIESOFFIBROUS

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