This degradation leads to a decrease in molecular weight and, consequently, a reduction in viscosity. On the other hand, in case of nanocomposites with GNP, studies have reported a plasticizing effect of GNP on PLA's rheological properties due to the presence of hydrodynamic slip effects and weak interfacial interactions between GNP and the polymer. When shear is applied, the nanoplatelets of GNP align in the direction of shear, facilitating a lubricating flow and, thus, promoting plasticization of PLA. It was further noted that this behavior was exclusively observable under steady shear conditions, and no similar behavior was observed under oscillatory shear . and, they have been proven to be reliable inputs for predicting the material's printing behavior . Accordingly, the values reported in Table were used as input values for the predictive model.