Tensile Behavior of lignocellulosic reinforced polyester composites: Part III coir fiber
The fiber extracted from the husk of a coconut fruit, known as coir fiber, has been extensively investigated as a second phase incorporation into polymer composites. The moderate strength of the coir fiber usually does not represent reinforcement to relatively strong thermoset matrices such as polyester, epoxy and phenolic. However, a selection of thinner coir fibers and a post cure treatment of the composite could improve its mechanical performance. Therefore, this work investigated the tensile properties of post-cured polyester matrix composites incorporated with the thinnest coir fiber. Tensile specimens with up to 40% in volume of long and aligned coir fibers were tested and their fracture analyzed by scanning electron microscopy. A relatively improvement was found in the tensile properties for the amount of 40% of coir fiber. These results were compared with similar composites that were bend-tested. The fracture analysis showed a comparatively better fiber/matrix adhesion.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
2010
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200017 |
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