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Polyacrylamide With A Polar Gene
Aug 30, 2017

1. Because polyacrylamide has a polar gene - amide group, it is easy to adsorb on the surface of the sediment particles by its hydrogenation.

2. Polyacrylamide has a long molecular chain, large orders of magnitude long chain in the water has a huge adsorption surface area, so the flocculation effect is good, can use long chain between the particles in the bridge, the formation of larger particles of flocs , Accelerated settlement.

3. With the help of polyacrylamide flocculation - coagulation, in the water treatment of cementing process or can occur double ionization compression, and then reduce the stability of particle aggregation, the role of molecular gravity in the particles together, the dispersion phase is simple Anions can be replaced by polymer anionic groups.

4. The chemical interaction between the material in the composition of the polymer and the natural water and the suspended matter in the water, or the ions of the hydrolyzed coagulant added before it, may be a complex reaction.

5. Since the polyacrylamide molecular chains are immobilized on the surfaces of the different particles, aggregated bridges are formed between the individual solid particles.

Polyacrylamide is a relatively active chemical compound of high molecular weight. If it is in the water treatment to play the role of flocculation and sedimentation, it is recommended to choose anionic polyacrylamide, APAM flocculant compared with many features: flocculation performance by the PH value and salt fluctuations in the small; The flocculation effect (sedimentation rate) is not as good as that of anionic, but it is superior to anionic in acidic condition. Floc strength is stronger than that of anionic polymer flocculant.