Polyacrylamide is a kind of linear high molecular polymer. Because of its good flocculation and coagulation aid, it plays an irreplaceable role in water treatment, papermaking, mineral processing, oil exploitation and other fields. But Pam has one disadvantage: long dissolution time. So how long is the polyacrylamide dissolution time normal?

The dissolving time of polyacrylamide product is not only related to its molecular weight, degree of hydrolysis and quality, but also closely related to environmental temperature, operation method and stirring speed. In general, the higher the molecular weight of polyacrylamide products, the slower the dissolution, the longer the time required, in the dissolution process, polyacrylamide particles first absorb water, expand, and then gradually spread. The initial solution is very uneven, and it needs to be stirred for a period of time to reach the same concentration. This process needs good equipment and correct operation, so it is possible to complete this process in a short time.

In the absence of special conditions, the recommended dissolution time of various types of polyacrylamide is about 40 minutes for anionic polyacrylamide, 50 minutes for cationic polyacrylamide and 60 minutes for non-ionic polyacrylamide. However, the above data are for reference only, and the actual dissolution rate is subject to the experimental results.

In order to shorten the time, some customers use warm water to dissolve. Although this operation is feasible, Gongyi Filter Industry Co.,Ltd still reminds you that the slightly higher temperature may cause the degradation of polyacrylamide molecules, so the water temperature control must be accurate. Otherwise, it is recommended to dissolve in advance.