schieferhemmer und flockungsmittel phpa-polymer buy phpa at malaysia

schieferhemmer und flockungsmittel phpa-polymer buy phpa at malaysia
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  • What is partially hydrolyzed polyacrylamide (PHPA)?
  • Partially hydrolyzed polyacrylamide (PHPA) polymers are used as additives to bentonite water based fluids to stabilize shales and in HTHP applications because of better thermal stability (PHPA). It also acts as coating on cuttings preventing agglomeration minimizing fluid loss and aiding cuttings transport.
  • How does polymer concentration affect the behavior of PHPA fluids?
  • Recall that PHPA fluids are solutions of synthetic polymers not clay suspensions and thus they can be expected to display different behavior. As regards the effect of polymer concentration, it can be seen from Fig. 6 that as the concentration increases, the values of both moduli also increase.
  • Can PHPA fluid replace bentonite slurries?
  • In civil engineering, PHPA fluids are increasingly being used as a complete replacement for bentonite slurries, as these synthetic fluids require a much-reduced site footprint for fluid-management equipment and offer potentially drier and therefore more readily reused excavated soil.
  • Is magnafloc a polyacrylamide homopolymer?
  • Magnafloc® 800HP (BASF) is nominally a polyacrylamide homopolymer, although may contain up to 1 % of anionic functionalities. Fig. 3 b shows that in contrast to anionic flocculants, applying the nonionic 800HP at a dosage of only 56 g t −1 was able to induce significant aggregation of solids within the drilling fluid.