The viscose properties of high filled thermoplastic composites
were studied. It was shown that the rheological properties of
high filled plastics depend generally on behavior of the flow of
a matrix polymer, the structure of the disperse phase, the interaction
between the polymer and the filler and between separate particles.In the work a theoretical relation between filled and unfilled polymer as a function of the filler content and interactions between components was presented. On the basis of the developed model a stochastic structure of filled material and non-linear viscose properties
of the polymer melt can be considered.