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Polymer composites are used in various applications because of its universal properties. In the present investigation the vinyl ester matrix composites were developed with glass fiber and carbon fiber as reinforcements. The composites were manufactured by using hand layup process and the tests were conducted as per ASTM testing standards. The inter laminar shear strength and impact strength of carbon reinforced composites have improved when compared with glass fiber reinforced composites. Whereas glass fiber reinforced composites have shown better shore-D hardness.

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The objective of this research was to gain a better understanding of thermally conductive and electrically insulating properties. The utilization of thermal conductive polymeric composites is growing up, where the polymers filled with the thermally conductive fillers effectively dissipate heat. Thermally conductive particles filled polymer composites have advantages due to their easy process ability, low cost and durability to the corrosion. The better understanding of tensile properties of epoxy resin composites reinforced with hardener, the effect of laminates has been investigated & experimentation was performed to determine property data for material specifications, the laminates were obtained by hand layup process. The test ready specimens were subjected to tensile loads on Universal Testing machine. This research indicates that tensile strength is mainly dependent on the orientation & thickness of laminated polymer composites.