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Effect of Crosslinking Agents on Morphology and Mechanical Properties of Ethylene Propylene Diene Monomer / Poly Vinyl Chloride Composites

C. P. Mohamed Kutty, T. Muraleedharan Nair, G. Unnikrishnan and M. Jahfar

The effects of cross-linking systems on the morphology and mechanical properties of EPDM/PVC composites were studied. Three cross-linking systems, sulphur, dicumyl peroxide and a mixture consisting of sulphur and peroxide were used for vulcanization. DCP vulcanized system possesses higher torque than sulphur cross-linked ones. Composite with 7.5 phr PVC samples prepared exhibited optimum mechanical properties. The amount of cross-linking agent is also found to affect the mechanical properties. The morphology has been studied for complementing the observations related to the above mentioned characteristics.