EFFECT OF ECO-FRIENDLY MICRO BASALT FIBER FILLER LOADINGON MECHANICAL PROPERTIES OF HYBRID POLYMERCOMPOSITESD. Mohanraj, A.P. Senthilkumar and B. Giriraj
A naturally available mineral fiber is used as a filler material in the hybrid polymer composite. Basalt fiber is a mineral fiber obtained from volcanic rocks. Milled basalt fiber with an average fiber length of 100 microns is used as a filler material. Bidirectional plain weave E-glass fiber mat and hybrid Carbon-Glass fiber mat contains 60% of Carbon fiber and 40% of Glass fiber are used as reinforcements in the Epoxy resin matrix material. Vacuum bag moulding method is used to prepare sandwich pattern hybrid composites by keeping the glass fiber mats at the inner layers and hybrid carbon-glass fiber mats at the outer layers. Four different composites were prepared by varying the weight percentage of filler from 0 to 18 in the interval of 6%. The influence of filler loading on the mechanical properties such as tensile, flexural and impact strength of the hybrid composites are studied according to the ASTM standards. The results revealed that the inclusion of filler material significantly influences the mechanical properties of the hybrid composite. Scanning electron microscope images (SEM) are obtained to study the dispersion of filler material, voids, and the fiber breakage during the testing.
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