Morphology and mechanical properties of waste PVC blends (I) - Morphology and mechanical properties of waste PVC/PE blends

The polymer blends of waste polyvinyl chloride (RPVC) and waste polyethylene(RPH) were prepared by melt mixing. and their morphology and tensile properties were evaluated after the copolymers having an ethylene group in backbone and ester group in side position were added as compatibilizer. The blend compositions were varied as follows : RPVC/RPE, 85/15 wt%, where, RPVC formed a continuous phase : 50/50, mid composition : 15/85, RPE a continuous phase, The blends revealed a very compatibility between component polymers because they showed domain sizes greater than 10 mum over all compositions, especially the worst compatibility around mid composition. The blends showed higher compatibility when ethylene vinylacetate copolymer(EVA) and ethylene ethytacrylate-graft-methyl methacrylate copolymers(EEA-MMA) were added.