Polyacrylic acid (PAA) is a polymer compound with various application fields. Polyacrylic acids with different molecular weights play different roles in various applications, among which the following are several common roles:
High molecular weight polyacrylic acid: High molecular weight PAA is commonly used as a water treatment agent and corrosion inhibitor. It can form complexes with metal ions, inhibit the oxidation, corrosion, and deposition of metals, thereby protecting equipment and pipelines. In addition, high molecular weight PAA can also thicken aqueous solutions and improve their rheological properties.
Medium molecular weight polyacrylic acid: Medium molecular weight PAA is mainly used in industries such as textiles, paper making, and printing. It has good moisture absorption and hydrophilicity, and can be used as a wetting agent and anti-static agent for textiles, improving the softness and comfort of the fabric. In addition, moderate molecular weight PAA can also be used for surface adjustment of paper, improving printing quality and ink adhesion.
Low molecular weight polyacrylic acid: Low molecular weight PAA is commonly used as an adhesive and dispersant. It has excellent adhesive properties and can be used in fields such as textiles, paper, adhesives, etc; At the same time, it can also effectively disperse pigments, fillers, and particles, improving the uniformity and stability of coatings, inks, etc.
It is necessary to select appropriate molecular weight polyacrylic acid based on specific application fields and needs, and carry out correct use and operation. In addition, the use of polyacrylic acid should comply with relevant regulations and standards to ensure safety and environmental protection.