high quality nonionic cationic anionic polyacrylamide(pam) for sale

high quality nonionic cationic anionic polyacrylamide(pam) for sale
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  • What is anionic polyacrylamide?
  • Anionic polyacrylamide is polymer with a large number of negatively charged moieties in the long chains of the PAM macromolecules. It can be obtained by partial hydrolysis of polyacrylamide neutral amide groups, which is shown in (3). This process occurs under moderate temperature by adding sodium hydroxide to the PAM solution [4, 6].
  • What is nonionic polyacrylamide?
  • Nonionic polyacrylamides Nonionic polyacrylamides represent the smallest group of acrylamide-based polymers, representing about 25% of the total polyacrylamide market. Nonionic polyacrylamide is somewhat misleading since in the manufacture of acrylamide, regardless of the route, some degree of hydrolysis of acrylamide occurs.
  • Does high mw anionic Pam outperform cationic polymers?
  • The use of high MW anionic PAM in the flocculation of negatively charged particles outperforms cationic polymers by enhancing the settling rate and establishing a distinct sediment shape . Only minimal adsorption is possible due to electrostatic repulsion between kaolinite particles (which have a negative charge) and the polymer.
  • What causes nonionic polyacrylamide adsorption?
  • Nonionic polyacrylamide adsorption on clay minerals is mainly caused by van der Waals forces , whereas cationic or anionic forms adsorb and bind soil particles through electrostatic forces or bridge formation between PAM charged moieties and solid surface group [1, 80].