Study of polymer composition based on a mixture of secondary thermoplastics
The studies found that the structure and properties of polymer compositions based on mixtures of secondary thermoplastics depends on the multiplicity of its processing. It is shown that in case of two temperature-force on the polymer mixture on the basis of waste PS/PE and PE/polyurethane foam it is observed the intensification of process of dispersion of polystyrene and polyurethane in the polymer matrix providing the formation of a homogeneous structure of the material. It is found that fly ashes are effective physical modifiers of secondary polymers without significant changes of their technological properties. Analysis of changes in the density of the composites based on secondary polymers and fly ashes (FA) and microspheres shows that during the filling of the studied polymers to 10 wt. % their density is reduced. Anomaly reduction of their density in the range of 10 wt. % is due to the structural features FA and microspheres, where there are pores and gas inclusions. Using examined mixtures efficient production of insulating materials with the required performance level are provided.