Title: Effect of Alumina-Graphite Filler Blending on Tensile Behavior of Glass Fiber Reinforced Epoxy Composites
Abstract: In this study, the effect of addition of alumina-graphite fillers on tensile properties of glass fabric reinforced epoxy resin composites has been evaluated experimentally. glass fiber/epoxy composites without filler and with 2%, 4%, and 6% filler content are fabricated using Hand Lay Up method. Each of the fabricated composite panel has equal percentage of alumina and graphite fillers by weight. Specimens from the fabricated plates are cut and testing is carried out in accordance with ASTM D-638. The properties like tensile strength, tensile modulus, elongation at break and deflection are studied. Modes of fracture and fiber-matrix adhesion are also studied. Results revealed that composites with increase in filler content show a decrease in tensile strength, whereas lower elongation, and decrease in tensile modulus compared to composites without filler. Effect of incorporation of alumina-graphite fillers, does not show much improvement in the fiber-matrix interface in the composite. Elongation properties decreased with the presence of filler that indicates interference by the filler in the mobility or deformability of the matrix. This interference was created through the physical interaction and immobilization of the polymer matrix due to the filler particles imposing mechanical constraints. The tests showed brittle fracture of the tested samples.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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