The effect of screw configurations in melt conveying section on PA6/LDPE blends and casting film was studied and the arrangement form and types of distributive mixing and dispersive mixing elements were considered. Compared with the screw configurations for concentrated arrangement, the blends prepared by screw configurations for staggered arrangement had better property through experiment study, and the results were consistent with the theory analysis. The blends and casting film prepared by the screw configuration of SPE+KB had best property. The mechanical properties of PA6/LDPE blends agreed well with that of casting film. The screw configurations for staggered arrangement which had uniform shear and backflow capacity were more suitable for preparing film with excellent property.

Topics
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2019
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