INVESTIGATION OF MECHANICAL BEHAVIOUR OF SISAL FIBER POLYMER COMPOSITE

The polymer composite material is replacing the traditional materials as other materials are limited and composite having condescend properties such as high impact strength, high tensile strength, high flexural strength and nature created materials natural fiber which are biodegradable and eco-friendly and easily available. Natural fiber is by product of agricultural product and natural fibers have low density and light weight. The polymer composite is made by compression moulding process. The percentage of sisal fiber is 10% of resin weight and size of sisal fiber is varied from 5mm to 20mm. It was used with 80% of polyester resin (93P) and 2% of cobalt as accelerator and 8% of methyl ethyl ketone peroxide as catalyst for cured. The polymer composite is made with 8Mpa pressure at room temperature. The test specimen is cut from 200mmx200m sheet which is made by compression moulding machine. The investigation of mechanical properties using ASTM standard test for plastic materials. After study about the properties with respect to fiber length it concludes that mechanical properties are increases as size increases.