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An experimental study was conducted to investigate the effect of salt on viscoelastic properties of partially hydrolyzed polyacrylamide Pusher 700 (Dow Chemical) in aqueous solutions. Viscosity η and primary normal stress differences N1, were measured on a Weissenberg rheogoniometer and a Contraves low‐shear viscometer.
Effects of Alkali, Salts, and Surfactant on Rheological Behavior of Partially Hydrolyzed Polyacrylamide Solutions †
Polyacrylamide is prepared by free radical polymerization mechanism in aqueous solution, using ammonium persulphate as initiator. Poly(acryl-amide-co-sodium acrylate) or partially hydrolyzed polyacrylamide (PI-IPA) with different degrees of hydrolysis was obtained by alkaline hydrolysis of polyacrylamide using sodium hydroxide as hydrolyzing agent .
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Progress on hemistry and Application of hitin and Its ... , Volume VII, 2012 53 RHEOLOGICAL PROPERTIES OF CHITOSAN BLENDS WITH PARTIALLY HYDROLYZED POLYACRYLAMIDE IN DIFFERENT SOLVENTS
Rheology and mechanical degradation of high-molecular-weight partially hydrolyzed polyacrylamide during flow through capillaries
Partially Hydrolyzed Polyacrylamide (PHPA) for drilling muds. Anionic polyacrylamide as flocculant and ... Cationic Polyacrylamide Application in Paper Making: ...
Synonyms: Polyacrylamide;Acrylamide resin;Acrylamide gel solution;Polyacrylamide,hydrolyzed;PAM;Polyacrylamide dry powder,cationic;yacrylamide dry powder,non-ionic;Cationic Polyacrylamide;anionic polyacrylamide;non-ionic polyacrylamide;
Request PDF on ResearchGate | Synthesis of high molecular weight partially hydrolyzed polyacrylamide and investigation on its properties | A continuous process for the polymerization of acrylamide and hydrolysis of functional groups in alkaline condition has been carried out.
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CMC, and partially hydrolyzed polyacrylamide (16). While starches are commonly used, they are relatively poor viscosifiers. Acids and bacterial enzymes readily attack the acetal linkages resulting in facile depolymerization. Both formaldehyde and isothiazolones have been used as starch biocides (17).
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Polymer flooding characteristics of partially hydrolyzed polyacrylamide (HPAM) solution with the addition of NaOH were examined in homogeneous glass-bead packs. The heavy oil recovery in unconsolidated sandstone formations by applying the alkali-polymer flooding was observed.
PHPA or Partially Hydrolyzed Polyacrylamide refers to high molecular weight polymers that checks the fluid loss, alleviates friction and enhances viscosity.
POLYACRYLAMIDE SOLUTION RHEOLOGY 539 EXPERIMENTAL The partially hydrolyzed polyacrylamide (HPAM) used in this study is the Pusher 700 of Dow Chemical. This water-soluble polymer is obtained by hydrolysis of polyacrylamide (PAM) with sodium or potassium hydroxide. Figure 1 depicts the molecular structure of PAM and HPAM …
Comparative studies of rheological properties of polyacrylamide and partially hydrolyzed polyacrylamide solutions
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FLODRILL™ For the Drilling Industry 5 FLODRILL™ For the Drilling Industry PHPA LT Property Unit Results required Results obtained 1 Relative dispersibility of Bentonite Pellets in 0.2 % (w/v) polymer solution at 60 ± 5 °C with respect to distilled water. 175 (Maximum) 138.49 2 Apparent viscosity of 0.2 % (w/v) polymer solution in distilled water.
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Polyacrylamide (IUPAC poly(2-propenamide) or poly(1-carbamoylethylene), abbreviated as PAM) is a polymer (-CH 2 CHCONH 2-) formed from acrylamide subunits. It can be synthesized as a simple linear-chain structure or cross-linked, typically using N,N '-methylenebisacrylamide.
Easily soluble in water, PHPA/Polyacrylamide (Partially Hydrolyzed Polyacrylamide) is a type of co-polymer, which is acknowledged for its thickness increasing properties, …
Partially hydrolyzed polyacrylamide (PHPA) is a copolymer, substance formed when two or more substances are polymerized simultaneously, resulting in a product that is not a mixture of individual polymers, but a complex which has different properties from each polymer by separated.
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polyelectrolytes; polyacrylamide; partially hydrolyzed; high molecular weight; anionic flocculant. INTRODUCTION Polyelectrolytes are polymers which possess many ionizable groups. They may be cationic (ionized polymer carrying positive charges), anionic (ionized polymer carrying negative charges) or amphoteric (ionized polymer which may carry …
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First, polyacrylamide that is dissolved in aqueous solution can be reacted with caustic material, such as sodium hydroxide, to convert a portion of the polymer’s pendant amide groups to carboxylate groups. This form of HPAM is referred to …
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