Morphology Development of Immiscible Quaternary Polyolefin and PS Blends |
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Authors: | Mónica Álvarez-Láinez Liliana González-Gómez |
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Affiliation: | Design Engineering Research Group, Department of Engineering Product Design, Universidad EAFIT, Medellín, Colombia |
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Abstract: | Study of polymer blends that fulfill the current engineering demand has been increased in the last years and multicomponent blends are still a challenge, but increasing the number of components will lead to further complications. We correlated the differences between morphology and blending sequence in quaternary blends of polyolefin with polystyrene, following the available theories that related viscosity and morphology. It was found that high viscous matrices enhance deformation and breakup processes, displaying fibrillar morphologies and finer dispersions. The blending sequence improves the mixing first, by putting all the polyolefin into a ternary blend and after that, adding the polystyrene. |
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Keywords: | Blending sequence immiscible multicomponent blends particle size analysis phase morphology viscosity ratio |
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