ABSTRACT
Blends PPPEHD are the blends of two incompatible polymers with crystallizing components
and are characterized by heterogeneity at various permolecular levels [8, 11, 22, 23, 26, 28-32, 8385]. The structure of such blend is formed at the stage of blending of components in melt or solution. Structure of its crystal regions is developed at the stage of melt cooling or dilution of blend. Processes of crystallites formation of both components depend on ratios of phase lamination and process of components crystallization. In dependence on rate of cooling of melt or solution of PP and PE one of the components may play role of crystallization nucleus for another one or they may decelerate rate of propagation of each other and change morphology of blend.
