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High molecular weight polyacrylamide concentration is difficult to deal with when the concentration is over 8%. Increasing the temperature could decrease the viscosity, but the effect is not significant. The viscosity of nonionic polyacrylamide solution is not affected by the pH value.
Get Price2021-7-8 · The concentration of cationic polyacrylamide is generally 2 ‰ to 5 ‰. The concentration of anionic and nonionic polyacrylamide is generally 1 ‰ to 2 ‰. Generally, the dissolution time of cations and anions is about one hour, and that of non-ionic is about one and a half hours. 4.
Get Price2000-9-1 · Abstract. The polymer-micelle model, formerly established by Cabane, is revised to develop a new viscosity equation to describe the dependence of dilute solution viscosity on polymer concentration in PEG/SDS aqueous solutions. Two parameters inthe new equation were proposed to characterize the influence of the polymer solution viscosity on the ...
Get PriceAnionic polyacrylamide solution viscosity reflects mainly due to internal friction between molecules of the liquid flow generated by the movement or relative. Friction within the structure of the polymer, the nature of the solvent, solution concentration and temperature and pressure and other factors, the greater its value, indicating that the greater the viscosity of the solution.
Get Price2020-9-17 · of the initial pH value of the gelling solution leads to the weaker gel viscosity and longer gelation time due to the protonation of amine groups on the PEI chains. Increasing temperature results in higher gel viscosity but shorter gelation time. The gel system in the presence of NaCit exhibits good compatibility with injection and formation water.
Get Price2016-12-1 · Next, according to the China national standard GB-T12005. 1–89, the dilution method was applied in order to determinate the intrinsic viscosity of polyacrylamide in the polymer solutions, and the acrylamide polymer molecular weight of degradation was calculated at 0 h (i.e., without the addition of acid), 1 h, 10 h, and 100 h.
Get Price2019-7-31 · investigate the in uence of concentration of monomers on intrinsic viscosity and occulation performance of branched cationic polyacrylamide, the concentration of Cu(III) was.% of total monomers, the reaction temperature was kept constant at C, and the reaction time was kept constant at.h, while the mass concentration of total monomers was
Get Price2009-8-1 · The influence of polyacrylamide on kaolin fabric, particle association type, and number of associations that develop depends on the molecular mass, concentration, and ion type of the polymer as function of the solids content of the system. This study of polymer–clay combination offers a new outlook for purpose of creating engineered soil systems.
Get PriceFabric changes in sedimentation, viscosity, and liquid limit behavior in the presence of polyacrylamide corresponding to the change in the type of particle association are observed in SEM. Floc/aggregate size and density tend to increase with increasing polyacrylamide concentration, showing the formation of more larger, denser flocs.
Get Price2003-2-21 · ADSORPTION OF POLYACRYLAMIDE 147 FIGURE 2 Diagram illustrating changes in reduced viscosity of polyacrylamide with aging of the solutions under higher temperature conditions (60.C). ~ 4--e-a ~ 3 U) 0 u U):> 2 u i&: U ~ 1 0 oJ g 0 oJ ~ FIGURE 3 T'UE,mlft Diagram i.llu~trilting changes in reduced viscosity of polyacrylamide in alkaline solutions.
Get Price2016-12-9 · The results show that the introduced nonionic surfmer along polymer chain can lead to a strong intermolecular hydrophobic association in water. The viscosity and surface activity increased with the increase of polymer concentration and nonionic surfmer concentration. Additionally, the polymer showed a good thermal stability and good salt tolerance.
Get Price2020-7-14 · The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI was investigated, and sodium citrate (NaCit) was selected as a new retarder to prolong the gelation time. The gelation performance of NPAM/PEI gel system can be adjusted by the variation of NPAM or PEI concentration, and a quadratic model was developed by statistical ...
Get PriceOur products include Polyacrylamide Flocculant series: anionic polyacrylamide (APAM), cationic polyacrylamide (CPAM), Nonionic polyacrylamide (NPAM), salt resistant and high temperature resistant polyacrylamide for oil field, instant polyacrylamide, etc.,in which instant polyacrylamide can be directly added without dissolving, with fast flocculation speed, large floc, small dosage and good effect.
Get PriceAcidic hydrolysis of polyacrylamide: partial acidic conditions under the hydrolysis of PAM, the hydrolysis rate with temperature increased and pH decreased and accelerate (Note: acid can strengthen the PAM hydrolysis, but under acidic conditions of hydrolysis of PAM rate is alkaline hydrolysis much slower, so often need to under high temperature.
Get PriceThe effect of a low molecular weight nonionic surfactant and an acrylic associative thickener on the rheology of polyacrylamide in aqueous glycerol solutions under steady shear was experimentally investigated. The nonionic surfactant (Tween20), associative thickener (Acrysol TT935) and polyacrylamide (Separan AP30) underwent complex molecular interactions in solution as reflected by ...
Get PriceNote: all solution must be used with same viscosity meter and the same stopwatch test, measurement of sequence from low concentration to high concentration , and before each measurement, viscosity meter must be used for washing test solution 2-3 times. 5.2.5 Calculation of Molecular Weight.
Get Price2020-1-14 · With an increase in the PAETAC concentration, the intrinsic viscosity of the cationic polyacrylamide emulsion decreased, while the apparent viscosity of the crude product increased when the PAETAC concentration was 0.5-0.6 g/g-monomer; when the PAETAC concentration was lower than 0.4 g g-monomer, the crude product was uneven and unstable;
Get Price2012-10-15 · concentration of drug on the viscosity and antifungal activity of clotrimazole cream prepared without heating. The commercial 1% w/w clotrimazole cream (Canesten® cream) was used for comparison. Materials and Methods Materials Clotrimazole (ctz) (batch no. 20001304, Lambrochem, Italy) and Canesten® cream (batch
Get PriceEmpirical Correlations for Viscosity of Polyacrylamide. The conventional polymer such as partially hydrolyzed polyacrylamide (HPAM) is commonly used in the Enhanced Oil Recovery (EOR) processes to control the mobility ratio and to improve the sweep efficiency (Myagchenkov and …
Get Price2020-5-7 · Interactions between the nonionic surfactant and polyacrylamide studied by light scattering and viscometry Khine Yi Myaa, Alexander M. Jamiesonb, Anuvat Sirivata,* aThe Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand bDepartment of Macromolecular Science, Case Western Reserve University, Cleveland, OH, USA Received 9 June 1998; received in …
Get Price2020-7-14 · Weight Nonionic Polyacrylamide and Polyethyleneimine mixtures for indepth Water Control in Mature Oilfields Yi Qin 1, Ruiquan Liao 2, Shunshe Luo 1,*, and Junliang Li 2 1 Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan, 430100, China; [email protected] (Y.Q.); [email protected] (S.L.)
Get PricePolyacrylamide (PAM) Polyelectrolyte is water soluble polymer with Anionic, Cationic and Nonionic types. The range of molecular weight is different, Anionic is from 5-22 million, Cationic is from 5-12 million and Nonionic is from 5-12 million, with a charge density ranging from 0-60%.
Get PriceAcidic hydrolysis of polyacrylamide: partial acidic conditions under the hydrolysis of PAM, the hydrolysis rate with temperature increased and pH decreased and accelerate (Note: acid can strengthen the PAM hydrolysis, but under acidic conditions of hydrolysis of PAM rate is alkaline hydrolysis much slower, so often need to under high temperature.
Get Price2019-4-3 · concentration (C) and the critical entanglement concentration (C*). When the polymer concentration (C) was less than C* (C < C*), the plot of the viscosity versus surfactant concentration exhibited a minimum. When C > C*, a maximum in the viscosity versus surfactant concentration plot was observed. The interactions between nonionic polymer and
Get PriceAnionic Polyacrylamide Emulsion, High Viscosity Pam Emulsion, Emulsified Cationic Flocculant manufacturer supplier in China, offering High Viscosity Anionic Polyacrylamide (PAM) Emulsion, Solid Polydadmac Powder for Water Treatment Coagulant (poly diallyl dimethyl ammonium chloride), Aerobic Tank Bacteria for Wastewater Treatment and so on.
Get Price2010-4-22 · molecular mass nonionic polyacrylamide (N-PAM) and a low mo-lecular mass nonionic polyacrylamide (n-PAM). Polyacrylamides concentrations of 0, 20, 80,120, 240, 500 mg/L were used to observe a change in behavior. The concentration range was selected based on calculated estimatesof the influence of cationic PAM on the kaolinite
Get Price2003-2-20 · the viscosity, which is expected to be small but significant for high-molecular-weight polymers such as those used in this work. In distilled water, the Mark-Houwink viscosity parameters for polyacrylamide are K - 6.31 X 103 dl/g and a = 0.8 at 30°C.27 Similar parameters are not available for the acrylamide co-polymers.
Get Price2016-3-15 · Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization. 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. …
Get PriceSolutions of ionic polyacrylamide polymers behave pseudoplastic in purely viscometric flow. Flow rate, polymer molecular weight and electrolytes affect solution viscosities to a large extent. Equations are given for the viscosity-shear rate relations in a form that can be used conveniently to account for the effect of viscosity on mobility.
Get Price2018-9-7 · 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 …
Get Price2019-4-3 · concentration (C) and the critical entanglement concentration (C*). When the polymer concentration (C) was less than C* (C < C*), the plot of the viscosity versus surfactant concentration exhibited a minimum. When C > C*, a maximum in the viscosity versus surfactant concentration plot was observed. The interactions between nonionic polymer and
Get Price2019-2-11 · Figure 20. Effect of pH and electrolyte concentration on the intrinsic viscosity of anionic polyacrylamide flocculant (PAM) at 25 °C. ..... 40 Figure 21 Reduced viscosity vs PAM concentration for different sodium chloride solutions
Get PriceAnionic Polyacrylamide Emulsion, High Viscosity Pam Emulsion, Emulsified Cationic Flocculant manufacturer supplier in China, offering High Viscosity Anionic Polyacrylamide (PAM) Emulsion, Solid Polydadmac Powder for Water Treatment Coagulant (poly diallyl dimethyl ammonium chloride), Aerobic Tank Bacteria for Wastewater Treatment and so on.
Get Price2018-6-10 · The particle size of the synthesized amphoteric polyacrylamide (AmPAM) ranged from 1 to 8μm and the intrinsic viscosity ranged from 5.6 to 14.2dL/g. The influences of aqueous solution of AS concentration, stabi-lizer concentration, initiator concentration, monomer concentration on the conversion of monomer, the intrinsic viscosity,
Get PriceFabric changes in sedimentation, viscosity, and liquid limit behavior in the presence of polyacrylamide corresponding to the change in the type of particle association are observed in SEM. Floc/aggregate size and density tend to increase with increasing polyacrylamide concentration, showing the formation of more larger, denser flocs.
Get Price2010-4-22 · molecular mass nonionic polyacrylamide (N-PAM) and a low mo-lecular mass nonionic polyacrylamide (n-PAM). Polyacrylamides concentrations of 0, 20, 80,120, 240, 500 mg/L were used to observe a change in behavior. The concentration range was selected based on calculated estimatesof the influence of cationic PAM on the kaolinite
Get PricePolyacrylamide solutions are widely used in modern technology as thickening agent, for turbulent reduction and many other uses. They have been extensively used in enhanced oil recovery. In many cases, polyacrylamide comes into contact with surfactants which lead to a change in its rheological properties. In this study, an experimental work was carried out to investigate the effect of the ...
Get Price2017-4-27 · Viscosity average molecular weight of polyacrylamide The viscosity average molecular weight of polyacrylamides was carried out by determining the intrinsic viscosities of the polyacrylamides using Ubbelohede viscometer, no. 4809 ASTM at 25 ± 0.1ºC. The polyacrylamide solutions were prepared in distilled water.
Get Price2011-9-9 · of nonionic polyacrylamide flocculant and perhaps by contaminants with surfactant properties, which ... because increased viscosity is known to increase the dynamic resistance when creating an interface and ... concentration will be closer to 1 ppm in the process slurry. At this concentration…
Get Price2014-6-24 · The intrinsic viscosity is the limit of the inherent viscosity when polymer concentration tends to zero. According to Sorbie (1991), the intrinsic viscosity can be used to estimate the molecular weight of the polymer by Mark-Houwink equation (Eq. 1): ( more significant effect on …
Get Price2019-2-11 · Figure 20. Effect of pH and electrolyte concentration on the intrinsic viscosity of anionic polyacrylamide flocculant (PAM) at 25 °C. ..... 40 Figure 21 Reduced viscosity vs PAM concentration for different sodium chloride solutions
Get Price2010-9-30 · The viscosity at high temperature has been studied as a function of aging time, shear rate, sulfonation degree, molecular weight, and concentration of IBA. The retention in porous medium for sulfonated polyacrylamide polymers was measured in core floods using outcrop Berea sandstone.
Get PricePolyacrylamide Anionic Water Soluble Polymers Of Acrylamide CAS 9003-05-8. Polyacrylamide Anionic Water - Soluble Polymer Of Acrylamide CAS No 9003-05-8 Description Polyacrylamide, simply called PAM, is a water-soluble flocculant polymer, available in anionic, cationic and nonionic for different Industries Application . Get Price
Get PricePolyacrylamide (PAM) Polyelectrolyte is water soluble polymer with Anionic, Cationic and Nonionic types. The range of molecular weight is different, Anionic is from 5-22 million, Cationic is from 5-12 million and Nonionic is from 5-12 million, with a charge density ranging from 0-60%.
Get Price2006-4-27 · polyacrylamide gel properties using a ball indentation technique. In addition, Dr. Dennis Discher and colleagues have evaluated the comparison between mechanical stiffness values of several natural and polyacrylamide gel substrates using AFM (Engler, 2004). Compelling results were obtained displaying similarities between several substrate types.
Get PriceFabric changes in sedimentation, viscosity, and liquid limit behavior in the presence of polyacrylamide corresponding to the change in the type of particle association are observed in SEM. Floc/aggregate size and density tend to increase with increasing polyacrylamide concentration, showing the formation of more larger, denser flocs.
Get Price2014-6-24 · The intrinsic viscosity is the limit of the inherent viscosity when polymer concentration tends to zero. According to Sorbie (1991), the intrinsic viscosity can be used to estimate the molecular weight of the polymer by Mark-Houwink equation (Eq. 1): ( more significant effect on …
Get Price2020-10-13 · Polyacrylamide is an umbrella term used to describe the homo-polymer of acrylamide and the copolymer of acrylamide with a small amount of other monomers. Owing to their superior property on increasing viscosity and gelling ability in the presence of crosslinkers, polyacrylamides has become the primarily selection for polymer
Get Price3.2. Effect of Surfmer DPA Concentration on Intrinsic Viscosity. The intrinsic viscosity of polymers was enhanced by the increasing dose of DPA (Table 1).This was mainly because the hydrophilic and hydrophobic groups of DPA could induce hydrophobic association in solutions, forming dynamic network structures, which enlarged the macromolecular hydrodynamic volume.
Get PriceGuoqing Jiang, Fengqi Liu, Effect of Mineral Salts on Steady Rheological Properties of Nonionic Hydrophobically Modified Polyacrylamide and Its Stress-Relaxation Behavior, Journal of Macromolecular Science, Part A, 10.1080/10601325.2014.843397, 50, 12, (1209-1217), (2013).
Get Price2020-7-11 · Properties. Polyacylamides are high molecular weight water soluble or swellable polymers formed from acrylamide or its derivatives. Their glass transition temperature is well above room temperature (> 400 K). The only commercially important polyacrylamide is poly (2-propenamide) which is simply called polyacrylamide or PAM [-CH 2 CH (CONH 2 )-].
Get Price2019-12-12 · The aim of this work was to investigate the solution properties of a new polymer–surfactant (SP) flooding system, including hydrophobically associating polyacrylamide (HAPAM) and mixed surfactant [mixture of fatty acid disulfonate anionic gemini surfactant (DMES) and non-ionic surfactant Triton X-100 (TX-100)]. The critical micelle concentrations (cmc’s) of four gemini surfactants were ...
Get Price2012-10-15 · concentration of drug on the viscosity and antifungal activity of clotrimazole cream prepared without heating. The commercial 1% w/w clotrimazole cream (Canesten® cream) was used for comparison. Materials and Methods Materials Clotrimazole (ctz) (batch no. 20001304, Lambrochem, Italy) and Canesten® cream (batch
Get PriceNonionic Mining Metallurgy Polyacrylamide Powder. NPAM Nonionic Polyacrylamide Industrial Water Treatment Chemicals . Non-ionic polyacrylamide of our company is produced on acrylamide by homopolymerization. High purity, good solubility. This product has …
Get Price2,184 high viscosity polyacrylamide products are offered for sale by suppliers on Alibaba.com, of which paper chemicals accounts for 20%, petroleum additives accounts for 19%, and water treatment chemicals accounts for 12%. A wide variety of high viscosity polyacrylamide options are available to you, such as chemical auxiliary agent ...
Get PricePreparation of Nonionic Polyacrylamide Flocculant . Nonionic polyacrylamide is a water-soluble polymer or polyelectrolyte. Because there are a certain number of polar groups in its molecular chain, it can bridge the suspended solid particles in water, bridge the particles or neutralize the particles by charge to form large flocs. Get Price
Get PricePolyacrylamide, abbr. PAM, is a kind of water soluble polymer, has unique effect to increase the viscosity of water or to promote the flocculation of particles present in water, it can also reduce the frictional resistance between the liquid. According to the different ion characteristics, PAM has three types:Anionic PAM,Cationic PAM and ...
Get Price2021-7-2 · Polyacrylamide is mainly cationic, anionic and non-ionic. Among these types, the application range of nonionic polyacrylamide is limited. The production volume and model of the manufacturer are also relatively small. The nonionic polyacrylamide is a good flocculant in water treatment. Get Price
Get PriceThis invention relates to a surfactant composition, production and use thereof in tertiary oil recovery. The present surfactant composition comprises a cationic surfactant and an
Get Price2011-9-9 · of nonionic polyacrylamide flocculant and perhaps by contaminants with surfactant properties, which ... because increased viscosity is known to increase the dynamic resistance when creating an interface and ... concentration will be closer to 1 ppm in the process slurry. At this concentration…
Get PriceA delayed crosslinked polymer gel was developed for indepth water control in mature oilfields. The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI was investigated, and sodium citrate (NaCit) was selected as a new retarder to prolong the gelation time. The gelation performance of NPAM/PEI gel system can be adjusted by the variation of NPAM or PEI concentration, and a ...
Get PriceDescription ：. Polyacrylamide emulsion （ Anionic/cationic/nonionic ） is one kind of high efficiency liquid flocculants with high concentration, polymerized in the oil by using water-in-oil emulsion advanced technology and W/O emulsifier, with high conversion rate, high molecular weight, high stability, multi-function, instant, etc.. Application ：. 1.Used as paper retention for culture ...
Get Price2021-6-9 · China Anionic Cationic Sugar Industry Paper Retention Aid. waste water treatment chmicals flocculant cationic coagulant pam powder Polyacrylamide, abbr. PAM, is a kind of water soluble polymer, has unique effect to increase the viscosity of water or to promote the flocculation of particles present in water, it can also reduce the frictional resistance between the liquid.
Get Price2019-5-30 · Chemical Purity Type Viscosity at 45 C, 1 g/L Anionic polyacrylamide (APAM, 5 million molecular weight) 99% Polymer 3331 mPas Xanthan gum (XC) USP Polymer 9472 mPas Nonionic polyacrylamide (PAM, 5 million molecular weight) 99% Polymer 3922 mPas Polysorbate 80 (Tween 80) 40% Polymer 493 mPas Appl. Sci. 2019, 9, x FOR PEER REVIEW 3 of 13 Table 3.
Get PriceSynergism of water-soluble hydrophobically associating polyacrylamide (HA-PAM) with nonionic surfactant laurel alkanolamide (LAA) was investigated via the rheology, fluorescence spectroscopy and dissipative particle dynamics (DPD) simulation methods. The viscosity and elasticity of HA-PAM solutions increased in a large LAA concentration range, which was principally ascribed to the crosslinking ...
Get Price2012-4-27 · Table II indicates that the intrinsic viscosity of AmPAM decreased with increasing of the dispersant concentration, but the viscosity of AmPAM dispersion increased instead, which was in accordance with former research on cationic and anionic polyacrylamide. 13 – 15, 19 The intrinsic viscosity of AmPAM was determined if the radicals grew up in ...
Get Pricemonomers concentration 8~15%, PEG 20000 concentration 15~25%, and PDMC concentration 0.5~1.5%. Finally, the for-mation process of copolymer particles was investigated by optical microscope. Keywords: polymer synthesis, aqueous two-phase polymerization, cationic polyacrylamide, dimethylaminoethyl methacry-late methyl chloride, polyethylene ...
Get PriceOn averaged between approximately 250° F. and approximately 350° F., the viscosity was enhanced by approximately 34% with the addition of 1% the nonionic polyacrylamide. The viscosity of the baseline VES in the first test and the viscosity of the nonionic polyacrylamide (1% by weight) were mathematically added (simple addition) and plotted in ...
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