What are the functions of polyacrylamide flocculants in the papermaking industry and medical materials

Release time:

Jan 17,2024


In the application of polyacrylamide flocculant in Industrial wastewater treatment, the combination of polyacrylamide and inorganic flocculant can significantly change the water quality. With the increase of flocculation and sedimentation rate, polyacrylamide flocculants form high flocculation strength, good sedimentation performance, and improved solid-liquid separation speed, which is conducive to sludge dewatering. The use of polyacrylamide can greatly reduce the amount of inorganic flocculants, thereby avoiding the deposition of inorganic substances on the surface of equipment and slowing down the corrosion and scaling of equipment.

paper industry

Polyacrylamide flocculants are widely used in the papermaking industry to improve paper quality, pulp dewatering performance, retention of fine fibers and fillers, and reduce raw material consumption and environmental pollution. It can be used as a dispersant to improve the uniformity of paper. The application of polyacrylamide flocculants in the papermaking industry mainly includes two aspects: firstly, improving the retention rate of fillers and pigments, reducing the loss of raw materials and environmental pollution; The second is to improve the strength of the paper. Adding polyacrylamide to paper can improve the retention rate of fine fibers and filler particles on the mesh, accelerating the dehydration of the paper. The formation of flocculation can also make the water in the pulp easier to filter, reduce fiber loss in white water, reduce environmental pollution, and improve filtration and filtration efficiency.

Medical materials

Polyacrylamide flocculant can be used as chromatographic filler, such as gel column filler, which can effectively separate spherical proteins such as cytochrome. It can further dilute and concentrate proteins. Through the reaction of polyacrylamide resin, L-arginine or L-hydroxyproline is introduced into the amide side chain through a methylene bridge to coordinate with copper ions to synthesize chiral ligand resin. It can effectively separate a series of DL amino acids. Chiral amino acids on polyethylene amine resin prepared by degradation method bind to copper ions. As a stationary phase for ligand exchange chromatography, it can separate a series of amino acids, especially aromatic amino acids. Due to the hydrophilicity of the skeleton, the separation time is greatly shortened.