The viscosity-shear rate curves not only demonstrate the flow behaviour but also offer insights into the dispersion state of the nanofiller within the polymer matrix as well as their interaction. When a good nanofiller dispersion is achieved the viscosity of the material is increased, and above the percolation threshold concentration, significant shear-thinning is observed . Although SEM images presented in Figure as, the possibility of thermal degradation triggered by high-temperature treatments, and the plasticizing effects of the nanofillers. In the case of nanocomposites with NC, prior studies have indicated that although the introduction of organically modified NC enhances the mechanical and barrier properties of PLA, during high-temperature treatment, the thermal degradation of PLA intensifies significantly when clay is incorporated.