Characterization of Green Coconut Fiber Composites

Autor:	Marcia G. Oliveira, Leila L. Y. Visconte, Jean L. Leblanc, Cristina R. G. Furtado, Marina H. Ishizaki
Rok vydání:	2008
Předmět:	Polypropylene Materials science Polymers and Plastics Flexural modulus General Chemical Engineering Plastics extrusion Composite number Screw speed Analytical Chemistry chemistry.chemical_compound chemistry Rheology Homogeneity (physics) Extrusion Composite material
Zdroj:	International Journal of Polymer Analysis and Characterization. 13:319-330
ISSN:	1563-5341 1023-666X
DOI:	10.1080/10236660802351409
Popis:	Composites of polypropylene and green coconut fiber were prepared in an extruder with temperatures of 140°C in the first zone and 170°C in the other five zones. The screw speed varied from 60 to 140 rpm. Two fiber granulometries were used, X (0,500–0,250 mm) and Y (0,841–0,500 mm). The homogeneity and the effect of the strain history of these composites could be studied by rheological data of molten composites. Flexural modulus was improved by using an adequate fiber granulometry and extruder screw speed. Results showed that the composite with Y fiber, obtained at 140 rpm, was the better one.
Databáze:	OpenAIRE
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