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Absorção de água em compósitos de fibras naturais: Desafios e Avanços
Paperback
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ISBN10: 6208800633
ISBN13: 9786208800635
Publisher: Edicoes Nosso Conhecimento
Published: Mar 30 2025
Pages: 128
Weight: 0.40
Height: 0.30 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208800635
Publisher: Edicoes Nosso Conhecimento
Published: Mar 30 2025
Pages: 128
Weight: 0.40
Height: 0.30 Width: 6.00 Depth: 9.00
Language: Portuguese
Os compósitos de polÃmeros reforçados com fibras naturais (NFRPC) estão a ganhar popularidade devido ao seu carácter ecológico e à s suas propriedades mecânicas superiores. No entanto, a absorção de água (WA) continua a ser um desafio significativo, levando a uma redução da resistência e da durabilidade. Este estudo analisa extensivamente as caraterÃsticas da absorção de água nos NFRPCs, examinando os seus efeitos na resistência à tração, à flexão e ao impacto. Foram explorados vários tratamentos de superfÃcie, incluindo alcalinos, silanos e acetilação, para aumentar a hidrofobicidade e melhorar a ligação fibra-matriz. Além disso, a integração de nanopartÃculas (NAPs) é avaliada quanto ao seu potencial para minimizar o WA e reforçar as propriedades mecânicas. Os resultados fornecem informações valiosas para o desenvolvimento de NFRPCs de alto desempenho para aplicações estruturais.
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