Studies on Dynamic Mechanical Analysis and Morphology of Carbon Soot Filled Un saturated Polyester Graded Composites

Archana Nigrawal, Navin Chand

Abstract


Dynamic mechanical behaviour  of carbon soot filled polyester graded composites was determined  with reference to carbon soot concentration present at different positions of the graded composites. At lower temperatures ,E’ values are maximum for unsaturated polyester resin  whereas above Tg E’ values of graded composites are higher than the pure polyester resin . The loss modulus peaks values decreased on  increasing the carbon  soot concentration .Tg values increased with increase in sootconcentration . Apparent activation energy of the relaxation process of different composites were analysed


Keywords


carbon soot, un saturated polyester, DMA,Storage modulus,Activation energy.

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