Abstract
ABSTRACT The effect of interfacial interaction and processing methods (one-step and two-step) on the structure–property relationships of ternary blends was investigated. The addition of ethylene-vinyl acetate (EVA) and ethylene octene copolymer (POE) resulted in homogeneous structure and greatly improved rubber-like properties of recycled high-density polyethylene (rHDPE) and regenerated tire rubber (RR) blends. Interfacial tension calculations revealed a high tendency of POE to encapsulate rubber particles (complete wetting). The two-step processing contributed to perfect encapsulation of the rubber phase via a soft/thick POE interface resulting in uniform RR particle dispersion, high elongation at break (138.5%), and impact strength (394 J/m) of rHDPE/(RR/POE) (20/80) ternary blend.
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