Polyacrylamide use in papermaking

Polyacrylamide use in papermaking
In papermaking, polyacrylamide serves as retention aid, filter aid, evenness agent, enhancing paper quality, slurry dewatering performance, retention rate of fine fibers and fillers, reducing raw material consumption and environmental pollution. As a dispersant, it improves paper uniformity. Polyacrylamide's role is to retain filler, pigment particles, reduce raw material loss and pollution, and increase paper strength. Its mechanism involves particle coagulation on the filter cloth via electrical neutralization or bridging. The formation of flocs also facilitates easier filtration of water from the slurry, reducing fiber loss in white water and environmental pollution, thereby boosting equipment efficiency such as filtration and sedimentation.