high molecular weight coagulant npam nonionic polyacrylamide

high molecular weight coagulant npam nonionic polyacrylamide
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  • What is nonionic polyacrylamide (NPAM)?
  • Nonionic Polyacrylamide (NPAM): NPAM is a high-molecular-weight polymer or polyelectrolyte with polar groups that enable it to adsorb suspended solid particles in water, forming larger flocs. It accelerates particle settling in suspensions, resulting in improved solution clarity and enhanced filtration.
  • What factors affect NPAM molecular weight?
  • The effects of the monomer concentration, initiator concentration, reaction time, feeding temperature and reaction temperature on the molecular weight were systematically investigated through single-factor and orthogonal experiments. The NPAM molecular weight can be controlled by adjusting these factors.
  • What is high molecular weight polyacrylamide (PAM)?
  • Provided by the Springer Nature SharedIt content-sharing initiative High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
  • How to control NPAM molecular weight?
  • The NPAM molecular weight can be controlled by adjusting these factors. The decisive factor is the acrylamide concentration, whereas the initiator concentration and feeding temperature are secondary factors. These synthetic NPAMs can be crosslinked with zirconium acetate to produce a gel fracturing fluid for use in low permeability oil reservoirs.