Effect of the strong electrolyte addition on rheological properties of aqueous solutions of sodium carboxymethyl cellulose

The object of the studies was to determine the effect of leading of various additives to different molecular masses (Mw = 250000 and Mw = 700000) Na-CMC aqueous solutions on the change of rheological properties of these solutions. The additives studied were sodium sulphate, sodium chloride, potassium chloride, sodium carbonate, potassium ferricyanide and ferrocyanide, sodium hydroxide as potentially useful in electrochemical technique. It has been shown that the presence of salt in a solution causes the decrease of consistency index and the increase of flow behaviour index as well as leads to better stabilization of solution (what results probably from the biodegradation slowing down a polymer studied). Additionally in the solutions of this type the electrochemical process has been carried out. No effect of the passage of current on rheological properties has been observed.