Linear viscoelastic response of polymer melts filled with immiscible nanoparticles

Rheology forms the fundamental basis of understanding the polymer chain dynamics in the field of polymer science where the outcomes play significant role in improving the processing of polymer melt and the final properties of polymer products. This review focuses on the influence of immiscible nanoparticles on the physical properties of polymers from the rheological point of view. To explain the viscoelastic behaviors of nanoparticle filled polymeric systems, the experimental studies which are limited to the linear regime of flow and deformation are considered under the scope of this article. In-depth rheological analysis of filled polymeric systems is crucial for the verification of material properties before the production of final products, and for its utilization on a larger scale. This allows efficient design of optimal equipment for processing which improves overall process economics. The rheological aspects such as viscosity, network formation and crosslinking, chain relaxation dynamics, and crystallization of polymers in presence of fillers, which are particularly important when determining the parameters for processing of nanoparticle filled polymeric systems, are studied. The processing parameters represent a key design element that have impact on development of unique products for desired application.