| Texto completo | |
| Autor(es): |
Araujo, J. R.
[1]
;
Mano, B.
[1]
;
Teixeira, G. M.
[2]
;
Spinace, M. A. S.
[1]
;
De Paoli, Marco-A.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP - Brazil
[2] Megh Ind & Com Ltda, Sao Paulo - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | COMPOSITES SCIENCE AND TECHNOLOGY; v. 70, n. 11, p. 1637-1644, OCT 15 2010. |
| Citações Web of Science: | 46 |
| Resumo | |
Vegetal fibers are used in polymer composites to improve mechanical properties, substituting inorganic reinforcing agents produced by non renewable resources, like fiberglass. The highest performance formulation in high density polyethylene, HDPE, composites reinforced with curaua fibers were studied, aiming to improve the interphase interaction and optimize the mechanical properties. The fiber content, the type and the concentration of coupling agent were tested. The composites and the pure materials were characterized by Fourier transform infrared spectroscopy and the fiber/matrix phase adhesion was evaluated by scanning electron microscopy. The mechanical properties and the micrographs showed that the best formulation is: 20 wt.% of milled curaua fibers and 2 wt.% poly(ethylene-g-maleic anhydride). The coupled composites are also less hygroscopic than the uncoupled composites. We conclude that the composites reinforced with curaua fibers have mechanical properties comparable to commercially produced composites of HDPE reinforced with fiberglass. (C) 2010 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 06/58343-7 - Compósitos de polipropileno com fibras de curauá obtidos por extrusão e moldados por injeção |
| Beneficiário: | Bárbara Íria Silva Mano |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |
| Processo FAPESP: | 04/15084-6 - Materiais poliméricos de baixo impacto ambiental |
| Beneficiário: | Marco-Aurelio de Paoli |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 06/58342-0 - Compositos de polietileno de alta densidade reforcados com fibra de curaua obtidos por extrusao/injecao. |
| Beneficiário: | Joyce Rodrigues de Araújo |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |