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Carboxymethyl cellulose (CMS) high and low Viscosity: Flow curve analysis by implementing the Power Law rheology model

Abstract:

The scope of this study is to implement the Power Law rheology model to characterize the shear stress behavior and flow curves for the Carboxymethyl cellulose (CMC) of high and low viscosity by analyzing experimental data obtained in conventional viscometers. Through computational algorithms, the preliminary data will be processed in order to obtain the relation between shear stress and apparent viscosity versus share rate, those last also named flow curves. In addition, the performance in the increment of the apparent viscosity comparing both products will be studied, focusing in finding where the differences are higher by evaluating different concentrations. Finally, the effectivity of the Power Law model applied to CMC will be discussed and some considerations for future experiments are suggested to achieve an optimum fit in the pseudoplastic characterization of the fluid in study.