The main technical indicators of polyacrylamide include molecular weight, ionic strength, hydrolysis degree, etc.Ionization is the main technical index of cationic polyacrylamide, and hydrolysis is the main industrial index of anionic polyacrylamide and nonionic polyacrylamide. These two indicators directly determine the effectiveness of their reaction with wastewater.

So many people will ask: What is the degree of hydrolysis and ionization of polyacrylamide?

1.What is the degree of hydrolysis of polyacrylamide

The degree of hydrolysis of polyacrylamide refers to the ratio of the number of polyacrylamide molecules hydrolyzed after the product is dissolved to the total number of polyacrylamide molecules dissolved.The degree of hydrolysis of polyacrylamide is mainly controlled by the amount of sodium carbonate added in the production and polymerization process. The anionic polyacrylamide used in sewage treatment is generally a product with a moderate degree of hydrolysis, and the degree of hydrolysis is controlled between 20-25%.

2.What is the ionization of polyacrylamide?

The ion density of polyacrylamide refers to the density of charged particles, which determines its reaction effect in sewage treatment.The ionic nature of polyacrylamide is controlled by adding cationic monomers to the production polymerization process.The ionic strength of cationic polyacrylamide used in sewage treatment is generally 10-60. The higher the ionic degree, the greater the amount of cationic monomer contained.Therefore, the price of cationic polyacrylamide is directly related to the degree of ionization. The higher the degree of ionization, the higher the price.

From this point of view, there is no relationship between the ionicity and hydrolysis of polyacrylamide. They are the index names of different types of polyacrylamide.

Whether it is the degree of hydrolysis or ionization of polyacrylamide, the higher the better.The water quality characteristics of different industries are different, and the polyacrylamide models selected are also different.According to the actual situation, experimental screening, repeated testing and analysis should be carried out, and then large-scale tests should be carried out on the machine to determine the appropriate polyacrylamide model and dosage.