Processing and Characterization of High Density Polyethylene/Ethylene Vinyl Acetate Blends with Different VA Contents
DOI: 10.1155/2012/635693
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摘要: Different series of high density Polyethylene/Ethylene Vinyl Acetate (HDPE/EVA) blends were prepared via melt blending in a corotating intermeshing twin screw extruder. The effects VA percentage and EVA loading ratio on the thermal, rheological viscoelastic, mechanical, fracture toughness analyzed. results showed that addition to HDPE reduces elastic, viscoelastic properties blends. microscopic examination surface confirmed ductile HDPE/EVA for all blend ratios percentages. Increasing content caused significant reduction crystallinity but had no effect melting temperature. complex viscosity increased with increasing due restriction molecular mobility free volume, induced by EVA. storage modulus decreased temperature, while it frequency. Young’s modulus, yield strength, strain ratio. Similarly, proportional percentage. Finally indicated has dynamic
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