Polyurethane derived from castor oil reinforced with long cotton fibers: Static and dynamic testing of a novel eco-friendly composite material

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

Romeu R. C. da Costa (Autor) Outra; Eduardo S. Sato (Autor) Outra; Marcelo L. Ribeiro (Autor) Outra; Ricardo de Medeiros (Autor) Outra; André F. C. Vieira (Autor) Outra; Rui Miranda Guedes (Autor) FEUP; Volnei Tita (Autor) Outra

Revista

Título: Journal of Composite Materials

Vol. 54 Nº 22

Páginas: 3125-3142

ISSN: 0021-9983

Editora: SAGE

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 4 Citações

Outras Informações

ID Authenticus: P-00R-ZKQ

DOI: 10.1177/0021998320911984

Abstract (EN): A novel eco-friendly composite material made of polyurethane derived from castor oil reinforced with long cotton fibers was developed. A set of comparative analyses comprising static and dynamic tests was established using specimens made of castor oil-based polyurethane reinforced by glass fibers, and epoxy reinforced by glass and cotton fibers. The manufacturing method and estimation of fiber volume fraction of the specimens were described in detail. Tensile and flexural tests were performed to evaluate the mechanical performance of the novel laminate. Fractographic post-mortem examinations assessed the quality of the fiber-matrix interaction and allowed direct observation of the failure modes. Surface treatment of natural fibers appears necessary to improve the adhesion of the natural fibers to the matrix. Dynamic responses are discussed, considering natural frequencies and modal damping coefficients. In this context, the potentialities and the limitations of using the novel eco-friendly composite material as structural parts are discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18