What is the viscosity of polyacrylamide solution?

The viscosity of a polyacrylamide solution mainly reflects the internal frictional resistance between liquid molecules due to flow or relative movement. This internal friction resistance is related to the structure of the polymer, the nature of the solvent, the concentration of the solution, temperature and pressure and other factors.

What factors affect a polymer solution viscosity?

These correlations account for the individual as well as combined effects of four major parameters; namely, shear rate, concentration, molecular weight and degree of hydrolysis, on polymer solution viscosities. Viscosities of various polymers solutions have been measured.

Why does high permeability affect the viscosity of polymer solution?

This is because when the polymer solution passes through the high permeability zone or flow at high rates, the mechanical degradation may occur, thereby decreasing the viscosity of polymer solution.

What causes the viscosity number of polyamide to vary?

However, it should be realised that deviations of the viscosity number can be caused by either the polyamide itself, effects caused by the additives present, or a combination of these.

How does molecular weight affect the viscosity of a polymer?

Due to the increased number of polymer molecules in the solution, the interaction between the polymer chains will be more. The molecular weight of the polymer has a drastic effect on the polymer solution viscosity. The higher molecular weight polymers will have higher hydrodynamic radius and charge density per molecule.

How does concentration affect the viscosity of a polymer?

With the increase in the concentration of polymer, the viscosity will be increased. Due to the increased number of polymer molecules in the solution, the interaction between the polymer chains will be more. The molecular weight of the polymer has a drastic effect on the polymer solution viscosity.