Polyacrylamide for paper making is a white granular solid with no special odor. Depending on the batch, other colors may generally be white or off-white. Polyacrylamide for paper making in a dry state has dispersed particles and no stickiness. The product characteristics of polyacrylamide for paper making include: flocculation: PAM can cause suspended substances to coagulate through electrostatic neutralization and bridging adsorption, playing a flocculating role.
Adhesiveness: It can play an adhesive role through mechanical, physical, and chemical actions. Friction resistance reduction: PAM can effectively reduce the friction resistance of fluids; adding a small amount of PAM to water can reduce resistance by 50-80%.
Thickening: PAM has thickening effects under both neutral and acidic conditions. When the PH value exceeds 10, PAM is prone to hydrolysis. The thickening effect will be more pronounced when it forms a semi-network structure.
In the field of paper making, polyacrylamide for paper making is widely used as retention aids, filter aids, and consistency agents. Its function is to improve the quality of paper, enhance the dewatering performance of pulp, increase the retention rate of fine fibers and fillers, reduce the consumption of raw materials and environmental pollution.
The effect of using polyacrylamide for paper making depends on its average molecular weight, ion properties, ion intensity, and other copolymer activities.
Nonionic polyacrylamide for paper making is mainly used to improve the filtration properties of pulp, increase the strength of dry paper, and enhance the retention rate of fibers and fillers. Anionic polyacrylamide for paper making copolymers are mainly used as dry and wet strengthening agents and retention aids for paper. Cationic polyacrylamide for paper making copolymers are mainly used for wastewater treatment and filter aid in papermaking, and they also have good effects on improving the retention rate of fillers. In addition, polyacrylamide for paper making is also used in papermaking wastewater treatment and fiber recycling.
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