Abstract
Obtaining relevant mixing, rules for different rheological parameters of polymeric composites represents an intricate task even in the case of binary composites if the morphological information lacks or is doubtful. By using the method of rheological operators in the framework of linear viscoelasticity, the rheological equations as well as the corresponding mixing rules. derived in composite averages approach, are discussed in terms of some well established rheological models for solid components (e.g., Hooke, Kelvin - Voigt and Zener, respectively). The persuading existence of quantitative and qualitative rheological effects is pointed out and evidenced for the considered rheological models, significant peculiarities of this approach being illustrated and examined in comparison with the results obtained in Voigt, Reuss and Takayanagi approaches, respectively.