What is polyacrylamide (PAM)?

Polyacrylamide (PAM), a versatile water-soluble polymer, plays a pivotal role in enhancing various processes within the paper industry. From pulp production to wastewater treatment, PAM proves to be an indispensable chemical aiding in the optimization of paper manufacturing.

Why is polyacrylamide used in paper industry?

Polyacrylamide (PAM) in paper industry is widely used as retention agent, filter aid, homogenizer, and water treatment agent and so on. Its function is to improve the quality of paper, improve the pulp dehydration performance, improve the retention of fine fibers and fillers, and reduce the consumption of raw materials and environmental pollution.

What are anionic polyacrylamides?

Anionic polyacrylamides (PAMs) are a class of synthetic water-soluble polymers (composed of long chains of acrylamide monomer) used as flocculants. They are available in dry powder form, liquid emulsion, and gelatinous blocks.

Why is Pam used in papermaking?

In papermaking, PAM is employed as a retention and drainage aid. It enhances the retention of fine particles during the papermaking process, leading to improved paper quality. The improved drainage properties result in better water removal, accelerating the drying process and increasing overall production efficiency.

What is anionic polyacrylamide (Apam)?

Anionic polyacrylamide (APAM) is a hydrophilic polymer which is easy to be carbonized (Choi et al., 2004). The amide group (−CONH 3) on APAM can form hydrogen bond with the uncondensed amine groups on surface of g-C 3 N 4 (Schwinghammer et al., 2014).

What are the advantages of polyacrylamide as a paper dispersing agent?

When the production speed 800m/min, the concentration 0.6%, the paper ash content 20%, the introduction of the PAM retention agent can reach 80% first processing retention and 50% first pass ash retention. When the polyacrylamide is used as the paper dispersing agent, it can improve the sheet formation.