Abstract
The interaction effects of rubber addition on the tensile and flexural characteristics of hybrid composites of Epoxy-carbon fiber with Graphene as nanofiller were studied. Bisphenol resin was used as matrix. The epoxy-carbon fiber composite was modified with 0.1, 0.2 and 0.3 wt% of graphene. The specimens with 0.1% graphene exhibited significant rise in tensile and flexural strength whereas on further addition of graphene with 0.2 and 0.3% the strength improved marginally compared to epoxy-carbon fiber composite. 10, 20 and 30% by weight natural rubber in liquid form was added to epoxy-carbon fiber with 0.1% graphene, which further enhanced the tensile and flexural characteristics of the hybrid composite. The specimens with 10% rubber reinforcement exhibited a nominal improvement in the tensile and flexural strength of the hybrid composite whereas the specimens with 20% rubber showed acceptable rise in the tensile and flexural strength. Upon further addition of rubber by 30% the strength decreased marginally. The SEM results for different configurations were analyzed to study the morphological and interfacial interactions.
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