How Much Do You Know About Cationic Polyacrylamide?

Polyacrylamide, also known as PAM, is not well understood by many people, who only know it as an efficient water purification agent. In fact, the uses of polyacrylamide are very numerous. Polyacrylamide is known as the "universal auxiliary", demonstrating its utility in various industries. Polyacrylamide (PAM) is mainly divided into anionic polyacrylamide, cationic polyacrylamide, non-ionic polyacrylamide, and amphoteric polyacrylamide. Different types of polyacrylamide have different functions. Anionic polyacrylamide is mainly used for wastewater sedimentation, cationic is used for sludge dewatering and sludge cake pressing, and non-ionic is used for flocculation and sedimentation of complex water bodies.

Friends who often use polyacrylamide and other industrial additives know that cationic polyacrylamide is relatively more expensive than other additives, and the larger the molecular weight, the more expensive the price. If you want to save costs, you need to pay attention to the storage of this agent. Otherwise, if any problems occur, it could cause severe losses. This article will introduce relevant information about cationic polyacrylamide.

Unique Structure of Cationic Polyacrylamide

Cationic polyacrylamide is popular because of its unique structure. Compared with other similar functioning agents, cationic polyacrylamide has higher adsorption capacity and better removal of organic water effects. It can better meet various needs for industrial wastewater treatment and decolorization.

Form of Cationic Polyacrylamide

Cationic polyacrylamide is mostly in powder form, which is more conducive to being stored in a dry and cool place. Generally, the concentration of the solution is 0.1%. The types of anionic polymer solutions should not exceed one week, and cationic polymer solutions should not exceed one day. However, 3%-5% solutions should not be directly used for wastewater treatment and need to be diluted.

Shelf Life of Cationic Polyacrylamide

The shelf life of cationic polyacrylamide is relatively short, generally one year. Beyond this period, it is usually considered expired and may face the possibility of ineffectiveness. Of course, this is not absolute. For example, cationic polyacrylamide storage conditions will have a significant impact on its shelf life.

Simply put, if cationic polyacrylamide is stored in a ventilated, dry, and cool place, its shelf life can be extended. Conversely, if stored in a high-temperature, humid environment, the shelf life of cationic polyacrylamide will be shortened.