Anionic polyacrylamide (APAM) appears as white powder granules, with a molecular weight ranging from 3 million to 25 million. It is highly water-soluble, dissolving in water but not in organic solvents.
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Cationic polyacrylamide (CPAM) is a linear polymer compound. Due to its multiple active groups, it can interact with and adsorb many substances to form hydrogen bonds.
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Non-ionic polyacrylamide is a water-soluble polymer or polyelectrolyte. Due to a certain number of polar groups in its molecular chain, it can adsorb suspended solid particles in water, bridging the particles or causing deep aggregation of particles through charge neutralization to form large flocs.
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Amphoteric polyacrylamide is formed by the hydrolysis copolymerization of acrylamide and a vinyl cationic monomer. Infrared spectroscopy analysis shows that the product chain contains not only "carboxyl anions" from the hydrolysis of acrylamide, but also vinyl cations. Therefore, it forms an amphoteric irregular polymer with both positive and negative charges on the molecular chain.
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