The world paper industry has developed rapidly, and the development of papermaking chemicals has become more and more important. As a polymer water-soluble polymer, PAM has great advantages in performance, easy to use, environmental protection and many other advantages, and plays a huge role in the paper industry. .

Cationic PAM is used as a papermaking enhancer to form a hydrogen bond with an anion on the fiber to adsorb onto the fibers of the pulp. The amide group and the hydroxyl group on the fiber combine to form a hydrogen bond, which can enhance the bonding force between the fibers. Increase the strength of the paper. Anionic PAM is used as a reinforcing agent without the effect of cationic PAM. Studies have shown that the use of zwitterionic PAM as a reinforcing agent is better than cationic PAM, and the zwitterionic PAM-type enhancer has a better reinforcing effect on waste paper pulp.