The common polyacrylamide is cationic polyacrylamide and anionic polyacrylamide, and most of the polyacrylamide on the market exists in the form of solid, so let's introduce some product knowledge of anionic polyacrylamide with solid grain shape.

Before using polyacrylamide, it is necessary to dissolve polyacrylamide, and the aqueous solution of polyacrylamide has high viscosity. Viscosity reflects the quality of polyacrylamide to a certain extent, so what factors will affect the solution viscosity of anionic polyacrylamide?

Anionic polyacrylamide is easy to hydrolyze when it is dissolved. When the anionic polyacrylamide is hydrolyzed, the anions will transform into carboxyl group with negative charge, which makes the molecular chain of the anionic polyacrylamide fully extended. Therefore, the viscosity of the aqueous solution of the anionic polyacrylamide is very high, and with the increase of the degree of hydrolysis of the anionic polyacrylamide, the viscosity of the aqueous solution is higher.

If the viscosity of anionic polyacrylamide aqueous solution is affected, it means that the use of polyacrylamide is affected. Therefore, we need to pay more attention to the use of anionic polyacrylamide. Temperature, pH value and stirring speed are the main factors affecting the anionic polyacrylamide. Firstly, temperature has an effect on all polyacrylamide, secondly, pH value has little effect on anionic polyacrylamide, but when pH value is greater than 10, the effect of anionic polyacrylamide will decrease rapidly. In addition, if the stirring speed is too high, the molecular chain of anionic polyacrylamide will be broken, resulting in the decrease of effect.