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.

Can polyacrylamide be used as paper dispersant?

Polyacrylamide could be used as paper dispersant, paper residence filter aid. The paper fibers and fillers in pulp are hydrophobic and tend to flocculate into clusters. It is difficult to produce paper with uniform properties and good strength. The addition of polyacrylamide promotes the dispersion of paper fibers and the formation of paper.

What is polyacrylamide (PAM)?

Enteromorpha prolifera polysaccharide based coagulant aid for humic acids removal and ultrafiltration membrane fouling control Polyacrylamide (PAM) has been used as a coagulant aid in water treatment process for past decades, but it has caused great damages to human nervous system.

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 is cationic polyacrylamide used for?

Polyaluminium chloride, anionic or cationic polyacrylamide are commonly used in the recovery of white water from papermaking, while cationic polyacrylamide is commonly used in air flotation treatment.

What are the advantages of cationic polyacrylamide?

The tiny fiber and the lignin in the pulp has better combination with the cationic polyacrylanmide than the anionic polyacrylamide, the cationic polyacrylamide has strong effect on the retention efforts. Modify the PAM with the resin gum, the gelatin and the titanium dioxide, it could be used as the wet end additives.