Moisture Effect on Degradation of Jute/Glass Hybrid Composites

The aim of this work is to evaluate the moisture absorption effect on the mechanical properties of a hybrid sandwich composite formed by orthophthalic polyester resin, reinforced by bi-directional woven fabrics of glass and jute fibers, with a central layer of polyester fabric (coremat). For the com...

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Bibliographic Details
Published in:Journal of reinforced plastics and composites 2007-01, Vol.26 (2), p.219-233
Main Authors: Aquino, E. M. F., Sarmento, L. P. S., Oliveira, W., Silva, R. V.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Forms of application and semi-finished materials
Laminates
Polymer industry, paints, wood
Technology of polymers
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Summary:The aim of this work is to evaluate the moisture absorption effect on the mechanical properties of a hybrid sandwich composite formed by orthophthalic polyester resin, reinforced by bi-directional woven fabrics of glass and jute fibers, with a central layer of polyester fabric (coremat). For the composite characterization, were performed tensile and three-point-bend tests, damage mechanism analysis, and moisture absorption tests. A larger absorption was observed for the hybrid composite compared to commonly observed fiberglass composites. This behavior is related to jute fiber as well as the coremat. In the mechanical tests a strong influence of the moisture content on the mechanical properties was verified. The main characteristic of the three-point-bend test was the premature shearing fracture of the coremat under both dry and wet conditions.
ISSN:0731-6844
1530-7964
DOI:10.1177/0731684407070030