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International Journal of Polymer Science
Volume 2015 (2015), Article ID 714352, 7 pages
Research Article

Rheological Behavior of Renewable Polyethylene (HDPE) Composites and Sponge Gourd (Luffa cylindrica) Residue

1Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro (UFRJ), Avenida Horácio Macedo, 2.030 Centro de Tecnologia, Prédio do Bloco J, 21941-598 Rio de Janeiro, RJ, Brazil
2Instituto de Química, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524 Maracanã, Pavilhão Haroldo Lisboa da Cunha, Sala 310, 3° Andar, 20550-900 Rio de Janeiro, RJ, Brazil

Received 26 February 2015; Accepted 27 April 2015

Academic Editor: Saiful Islam

Copyright © 2015 Viviane Alves Escócio et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The present study reports the results of rheological behavior of renewable composites, based on a matrix of high density polyethylene (HDPE), made from ethanol distilled from sugarcane, and lignocellulose filler from waste generated in the processing of sponge gourds for bathing use. The composites were prepared with 10, 20, 30, and 40%wt of filler in a twin-screw extruder. The materials were analyzed in a parallel plate rheometer and a melt-flow indexer. The composite morphology was determined by scanning electron microscopy. The composite viscosity increased with filler content, suggesting possible formation of filler agglomerates. This result was confirmed by Cole-Cole diagrams.