Authors
Abstract
In the present work tubular –shaped fiber reinforced composites were
manufactured by using two types of resin epoxy (EP) and unsaturated polyester
(UP),each was separately reinforced with glass, carbon and kevlar-49 fibers (filament
and woven roving), hybrid reinforcement composites of these fibers were also
prepared. The adhesion force test of the prepared specimens was carried out. These
adhesion forces exhibited a peak value at a percent of hardener/resin (H/R)= 3% for
UP matrix with all type of fiber arrangements while 30% was obtained for EP matrix
.Such behavior was declined with increase in temperatures. Glass transition
temperatures were determined from these measurements, and found to be 90°C for EP–
glass and 83 °C for UP –glass composites.
Keywords
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