Artículos de revistas
Biocomposite Of A Multilayer Film Scrap And Curaua Fibers: Preparation And Environmental Degradation
Registro en:
Journal Of Thermoplastic Composite Materials. Sage Publications Ltd, v. 30, p. 225 - 240, 2017.
0892-7057
1530-7980
WOS:000397205300004
10.1177/0892705715598358
Autor
Spinace
Marcia A. S.; De Paoli
Marco-Aurelio
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) An important material for making composites is the scrap of multilayer films. Using plant fibers in these composites can further contribute to reduce their environmental impact. We prepared, by extrusion and injection molding, composites of this scrap reinforced with 20 wt% of curaua fibers. These were characterized using scanning electron microscopy (SEM); optical microscopy; tensile, flexural, and notched impact strength tests; differential scanning calorimetry; carbonyl index (CI) by Fourier transform infrared spectroscopy; reflectance ultraviolet-visible spectroscopy; and water absorption measurements. The fiber promoted an increase in the flexural and tensile moduli strengths. SEM showed good fiber/matrix adhesion, dispersion of the fibers in the matrix and their fibrillation. Weathering of the surface of the composite during environmental aging was evidenced by CI, degree of crystallinity, melting temperature, and the formation of cracks caused by chemi-crystallization. Despite the environmental degradation of the exposed composite surface, the mechanical properties and interfacial adhesion did not change significantly. 30 2 225 240 FAPESP [2010/17804-7, 2011/00156-5] CNPq [310410/2010-0] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)