Pulp and Paper Chemicals refers to chemicals used to treat fiber raw materials, pulp and base paper during pulping, papermaking and paper processing.
In the field of Pulp and Paper Chemicals, polyacrylamide is widely used as a retention aid, a drainage aid, a leveling agent and other pharmaceuticals. The function of polyacrylamide for papermaking is to improve the quality of paper, improve the dewatering performance of pulp, improve the retention rate of fine fibers and fillers, reduce the consumption of raw materials and the pollution to the environment. The effectiveness of its use in papermaking depends on its average molecular weight, ionic properties, ionic strength and other copolymer activities. Non-ionic polyacrylamide for papermaking is mainly used to improve the filterability of pulp, increase the strength of dry paper, and improve the retention rate of fibers and fillers; anionic polyacrylamide copolymer for papermaking is mainly used as dry and wet strengthening agent and Residue agent; cationic polyacrylamide copolymer for papermaking is mainly used for papermaking wastewater treatment and filter aid, and also has a good effect on improving the retention rate of fillers. In addition, polyacrylamide for papermaking is also used in papermaking wastewater treatment and fiber recovery.
In the Pulp and Paper Chemicals industry, Ciba Refinery is mainly used as a papermaking aid. Polyacrylamide for papermaking is used as a cationic retention and drainage aid. C8560 is widely used in the production of cultural paper, newsprint, cardboard and special molds. plastic products. It is recommended to add it at the thin pulp. The addition point should be selected at the last shearing point before the paper sheet is formed, and the dosage is between 0.01-0.1% (relative to the absolute dry pulp). Can be used in single, dual and particulate retention systems. At the same time, it can also be used as a polymer flocculant to improve the efficiency of the paper machine recycling system.
