Artículos de revistas
Biomicrofibrilar composites of high density polyethylene reinforced with curaua fibers: Mechanical, interfacial and morphological properties
Registro en:
Composites Science And Technology. Elsevier Sci Ltd, v. 70, n. 11, n. 1637, n. 1644, 2010.
0266-3538
WOS:000281180400009
10.1016/j.compscitech.2010.06.006
Autor
Araujo, JR
Mano, B
Teixeira, GM
Spinace, MAS
De Paoli, MA
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) 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. 70 11 1637 1644 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) [06/58342-0] [06/58343-7] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAPESP [2004/15084-6] [06/58342-0] [06/58343-7]