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Hybrid Effect on the Mechanical Properties of Sisal Fiber and E-Glass Fiber Reinforced Polyester Composites


RE Njoku
CS Obayi
PS Nnamchi

Abstract

The hybrid effect of incorporating periwinkle shell particles into sisal fiber- and E-glass fiber reinforced polyester composite was studied.  Hybrid composites of sisal/periwinkle shell and E-glass/periwinkle shell were prepared at a fixed fiber to polyester ratio of 30:70 and variable ratios of the two reinforcements namely 30:0, 20:10, 15;15, 10:20, 0:30 by weight.  Experimental samples were produced using the hand lay-up method.  Tensile, hardness and flexural tests were performed on these samples and the results showed that the addition of periwinkle shell particles improved the mechanical properties of sisal fiber reinforced composite while it reduced those of E-glass fiber reinforced polyester composite.  Improvement in strength of the sisal/periwinkle hybrid composite was attributed to the ability of the periwinkle shell particles to transfer load to the sisal fibers in the hybrid composite.


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eISSN: 2467-8821
print ISSN: 0331-8443