The PNCs with NPs are increasingly replacing conventional materials, mainly due to significant improvement in various properties with the incorporation of particles. Due to their important role in industrial formulations spanning from food packaging to aerospace, PNCs have had a huge market value over the last two decades. PNCs may be processed using the same methods for processed pure polymers, such as injection, extrusion molding and thermoforming etc.. The η is a key physical property of PNCs fluids, which determines the fluids flow properties. It plays a vital role in the processing of PNCs. The η of PNCs is significantly higher than pure polymer fluids, which exists processing difficulties. In order to maintain the processing progress of PNCs smoothly, to obtain high performance products and minimize manufacturing costs, the value of  needs to be kept within a reasonable range.