Caracterización de un material compuesto matriz poliéster reforzado con fibra tejida de banano

Abstract

In this degree work, fiber reinforced polyester matrix composite materials were developed and characterized, and the fibers were chemically treated using mercerization and untreated fibers, with the 10% weight (wt) longitudinal and continuous longitudinal configurations by weight of fiber for the preparation of the specimens of the preliminary tests. Determining the most suitable fiber to make the composite material reinforced with twill type fabric oriented at 0°, 30° and 45° at 20% wt.

All specimens were obtained by compression molding and their mechanical properties were evaluated by standard mechanical tests of tensile, flexion and impact based on the respective standards ASTM D-638 [14], ASTM D-7264, ASTM D-5420 [04]. Among the most important results, a 29.08% increase in tensile strength of the composite material reinforced with longitudinal continuous treated fiber was obtained. However, its flexural strength is reduced by 30.41% in relation to the polyester matrix.

While for the 45° oriented fiber reinforced fiber composite, it obtained the best results in relation to the 0°, 30° orientations. However, in comparison to the resin matrix it shows a decrease of 35.46%, 31.64% in the resistance of traction and flexion respectively. What is concluded that it is not feasible to work with this type of fabric reinforcement, at least with the variables used in this degree work.