Abstract
A study has been done on the mechanical properties of poly vinyl chloride/ethylene vinylacetae (PVC/EVA) polymer blends filled with stearic acid coated calcium carbonate (Forcal-S). Both impact strength and stiffness of the composites are optimized by varying EVA and filler (Forcal-S) contents. The results show that the stiffness of the filled polyvinyl chloride is a function of the concentration of the filler. The impact strength of the PVC/EVA blend depends only on the concentration of EVA. The tensile strength of the filled composites depends strongly on the degree of interfacial bond developed between the polymer and the filler. The interfacial bond strength depends on the effectiveness of the coupling agents. The inherent properties of filled PVC/EVA blends depend on the concentration of filler and strength of the polymer-filler interface.
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