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In this study, we aimed to evaluate the characteristics of curaua composites using dynamic me- chanical analysis. Curaua composites with distinct fiber vol- ume fractions (11-38%) were studied, and their storage and loss moduli were found to increase with reinforcement con- tent. On the other hand, the activation energy of the relaxa- tion process in the glass-transition region decreased with the curaua content; this conclusion was corroborated by the elastic chain concentration results. The Cole-Cole plots became flattened as the curaua content increased; this was in- dicative of a more homogeneous system, and the tan d peak height and peak width at half-height decreased. V C 2012 Wiley |
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