Properties and applications of polyacrylic acid

PAA is non-toxic and highly soluble in water. It can operate under alkaline conditions and at moderate concentration levels without causing scaling. It disperses microcrystals or silt of salts such as calcium carbonate and calcium sulfate in water, preventing them from precipitating, thereby achieving scale inhibition. PAA is a commonly used dispersant. In addition to being used as a scale inhibitor and dispersant in circulating cooling water systems in power plants, chemical plants, fertilizer plants, refineries, and air conditioning systems, it is widely applied in industries such as papermaking, textiles, dyeing, ceramics, coatings, and building materials.

PAA (polyacrylic acid) is often used in combination with other water treatment agents in formulations. The specific formulation and dosage are determined by testing based on the on-site water quality and equipment material conditions. When used alone, the general dosage is 1-15 mg/L. In other industries such as concrete water-reducing agents and dyeing, the dosage should be determined by testing.