Viscosity, or a fluid’s resistance to flow, is independent of the rate of shear or shear stress, at a given temperature, for Newtonian fluids. Non-Newtonian fluids such as polymer solutions often ...

A recent study used various gas oils and blends with residual heavy oils in order to evaluate the predictability of four different correlations. The gas oils differed substantially in their ...

Choosing a PVA grade can become confusing when two products carry similar numbers but behave differently in water, a coating line, or a finished film. Polyvinyl alcohol grades are mainly distinguished ...

Viscosity parameters are crucial for a number of materials including fuels, lubricants, medicines, oils, and paints. Ensuring that a material substance possesses the right amount of viscosity allows ...

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There is a strong link between what is called the weight-average molecular weight of a polymer and a parameter called the zero-shear viscosity. Although the correct link rather depends on the polymer, ...

Following the recent publication of a study from Emory University that found elevated plasma viscosity levels in critically ill COVID-19 patients, a number of investigations are currently underway to ...