The difference between cationic polyacrylamide and anionic polyacrylamide in water treatment

Anionic polyacrylamide and cationic polyacrylamide have different applications and characteristics in water treatment. Both of these chemicals belong to the polyacrylamide (PAM) class, but their chemical structures and properties are different.

1. Chemical structure: Polyacrylamide is a linear water-soluble polymer that can be divided into three types: cationic, anionic, and nonionic.

2. Physical properties: Cationic polyacrylamide is distinguished by its ionic strength, while the use of anionic polyacrylamide mainly depends on its molecular weight. The longer the molecular weight chain, the higher the viscosity of polyacrylamide solution.

3. Application areas:

(1) Anionic polyacrylamide: With high water absorption and hydrophobicity, it is mainly suitable for fields such as printing and dyeing.

(2) Cationic polyacrylamide: With cationic and suspension properties, it is suitable for water treatment, oilfield development, and other fields.

(3) Organic sludge treatment typically uses cationic polyacrylamide, while inorganic sludge treatment commonly uses anionic polyacrylamide.

4. Appearance: Both anions and cations have solid and liquid forms. The solid form is difficult to distinguish with the naked eye, but the liquid form is different. Anionic liquids turn white, while cationic liquids have a slight blue hue.

In summary, there is a significant difference in the application of anionic and cationic polyacrylamide in water treatment, and the selection of the appropriate type depends on specific treatment requirements and conditions.

More information can be found on the official website of Shenzhen Hongjie Water Technology Co., Ltd. www.execro.com. If you need it, you can call the company's hotline for free at 180 3800 0078, and we will be happy to serve you.