Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).
The viscosity of polyacrylamide aqueous solution is influenced by the solution viscosity, ph value, shear rate and the relative molecular polymer. Polyacrylamide solution viscosity and concentration are similar to the logarithmic relationship. High molecular weight polyacrylamide concentration is difficult to deal with when the concentration is ...
Get Price2013-12-24 · The best condition for the intrinsic viscosity of P(AM-DAC-BA) in theory was that photoinitiator concentration was 0.60‰, incident light intensity 1491.67 μw/cm 2, and illumination time 117.89 min, respectively.
Get Price2020-1-14 · viscosity of the cationic polyacrylamide emulsion decreased, while the apparent viscosity of the crude product increased when the PAETAC concentration …
Get PriceCombined effect of molecular weight, degree of hydrolysis, concentration of polymer and shear rate on viscosity of polymer solution: The modified form of power-law equation for polymer viscosity that takes into account the combined effects of molecular weight, degree of hydrolysis, concentration and shear rate is presented in this section. These four parameters affect the viscosity of the polymer solution and can be combined in one equation to predict the viscosity …
Get Price2021-6-28 · The viscosity of polyacrylamide solution mainly reflects the internal frictional resistance between liquid molecules due to flow or relative movement. The internal frictional resistance is related to the structure of the polymer, the nature of the solvent, the concentration of the solution, temperature, pressure and other factors.
Get Price2013-4-24 · In order to investigate the influence of concentration of monomers on intrinsic viscosity and flocculation performance of branched cationic polyacrylamide, the concentration of Cu(III) was 0.5% of total monomers, the reaction temperature was kept constant at 50°C, and the reaction time was kept constant at 2.5 h, while the mass concentration of total monomers was 15%, 20%, 25%, 30%, 35%, …
Get PriceThe 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%. It is most often used to increase the viscosity of water (creating a thicker solution) or to encourage flocculation of …
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 glycol 20000
Get Price1999-3-1 · The extrapolated zero shear rate specific viscosity values for each concentration of the individual polymers were used to evaluate the intrinsic viscosities by the procedure developed by Huggins, (2) η sp /C=(η)[1+k H (η)C] where η sp is the shear corrected specific viscosity, k H is the Huggins constant and C is the polymer concentration in g dl −1.
Get Price2017-8-27 · weight and concentration of stabilizer should be selected and optimized. In this paper, the optimum range for the intrinsic viscosity of stabilizer is 2.98-3.74 dL·g-1, in concentrations between 1.2-1.8 wt%. The extensibility of the stabilizer molecular chains is affected by the concentration of salt in the aqueous medium.
Get Price2009-1-30 · Effect of photo-initiators concentration on the intrinsic viscosity. Polymerization conditions: terpolymer concentration 0.05 wt.%, pH = 3.0, initial temperature 6°C, monomers concentration 36 wt.%, cationic degree 12%, photo time 120 min
Get Price2013-12-24 · The best synthetic conditions that were optimized by fitting RSM model while setting the photoinitiator concentration from 0.025 to 0.075 wt%, incident light intensity from 700.0 to 1700.0 μw·cm 2, and illumination time from 40 to 120 min were given that the cationic degree, photoinitiator concentration, light intensity, and illumination time ...
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 PriceCationic Polyacrylamide (CPAM) 69418-26-4,Powerful foculant widely used in industrial and municipal water treatment_OKCHEM Please note that all emails sent by OKCHEM are from ***@okchem.com, [email protected] okchemvip.com, or [email protected]
Get PriceCationic polyacrylamides modified with fluorinated methacrylate (FPAM) were prepared with acrylamide, dodecafluoroheptyl methacrylate (DFM) and methacryloxyethyl trimethylammonium chloride by free radical micellar copolymerization. The solution properties of FPAM were investigated. The results show that there are strong hydrophobic associations in the FPAM aqueous solution.
Get PriceAbstract: In order to improve the aqueous solutions viscosity and flocculation performance of cationic polyacrylamide, organic montmorillonite was added into polymerization system of polyacrylamide, the cationic polyacrylamide/dimethyl diallyl ammonium chloride/organic montmorillonite (CPAM/DMDAAC/MMT) nanocomposite was prepared by aqueous two-phase polymerization method.
Get Price2019-12-12 · The interaction between cellulose fibers in the presence of cationic polyacrylamide (CPAM) was analyzed by rheology as a function of polyelectrolyte concentration, charge density, and molecular weight. CPAM was found to strongly influence the yield stress of cellulose suspensions; low doses of CPAM increased the yield stress, but at higher concentrations the yield stress declined. The charge ...
Get Price2009-10-16 · A novel cationic polyacrylamide modified with fluorinated acrylate had been synthesized of acrylamide (AM), methacryloxyethyl trimethylammonium chloride (DMC), and 2-(perfluorooctyl)ethyl acrylate (FEA) by free radical micellar copolymerization in aqueous solution utilizing cetyl trimethylammonium bromide (CTAB) as the surfactant and potassium persulfate (KPS)/sodium …
Get Price2019-4-9 · The copolymer maximum intrinsic viscosity of 15.7 dL g −1 and conversion rate of 99.7% were obtained at the total monomers concentration of 40 wt%, UV light illumination time of 60 min, photo-initiator concentration of 0.6 wt‰, pH = 4, DMC concentration of 25 wt% and n NaPAA:n DMC = 1:1.
Get Price2010-8-3 · Anionic polyacrylamide dispersions were prepared by dispersion polymerization in an aqueous salt medium, using acrylamide(AM) and acrylic acid(AA) as monomers and anionic polyelectrolytes as stabilizer. Effects of salt concentration, and molecular weight and concentration of stabilizers on the stability of the dispersions were investigated using a HAAKE rheometer and optical microscopy.
Get PriceCationic polyacrylamides modified with fluorinated methacrylate (FPAM) were prepared with acrylamide, dodecafluoroheptyl methacrylate (DFM) and methacryloxyethyl trimethylammonium chloride by free radical micellar copolymerization. The solution properties of FPAM were investigated. The results show that there are strong hydrophobic associations in the FPAM aqueous solution.
Get Price2018-2-22 · The results indicate that within a wide concentration range, the viscosity curves for these cationic microgels perfectly correspond to the Krieger–Dougherty model as modified by Tan et al. In particular, the specific volume in this model decreases at the critical overlapping concentration and reveals the interaction intensity between ...
Get PriceAbstract: In order to improve the aqueous solutions viscosity and flocculation performance of cationic polyacrylamide, organic montmorillonite was added into polymerization system of polyacrylamide, the cationic polyacrylamide/dimethyl diallyl ammonium chloride/organic montmorillonite (CPAM/DMDAAC/MMT) nanocomposite was prepared by aqueous two-phase polymerization method.
Get PriceCationic Polyacrylamide P(AM-DAC-BA) was synthesized by UV initiation, with acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DAC), butyl acrylate (BA) as the monomers. P(AM-DAC-BA). UV spectroscopy and infrared spectroscopy were employed to study the structural characteristics.
Get PriceDr. Bruce Perrault, Ph.D , (Georgia Institute of Technology (Georgia Tech), USA) Fluorocompounds areone of the important parts of our daily life, concerning alimentation, health care or leisure time as well as the alternative energy sector, which is of an increasing significance in times of …
Get Price2019-12-12 · The interaction between cellulose fibers in the presence of cationic polyacrylamide (CPAM) was analyzed by rheology as a function of polyelectrolyte concentration, charge density, and molecular weight. CPAM was found to strongly influence the yield stress of cellulose suspensions; low doses of CPAM increased the yield stress, but at higher concentrations the yield stress declined. The charge ...
Get Price2015-06-01 16:40:08. Factors influence the viscosity of polyacrylamide. Anionic 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 ...
Get Pricehow to test the solid content of cationic polyacrylamide? Cationic Polyacrylamide . Coution：The strong acid and strong base and organic solvent which using in this standard have corrosivity and poisonousness, When using, should avoid inhalation or touch with skin.Splashed on should rinse immediately with plenty of water, when serious should go to a doctor immediately.
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 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 PriceUV-Initiated polymerization of cationic polyacrylamide: synthesis, characterization, and sludge dewatering performance ... and photoinitiator concentration on the intrinsic viscosity [η] of P(AM-DAC-BA) were investigated. RSM model based on the influencing data was established for optimizing synthetic conditions. It was found that, at light ...
Get Price2018-2-22 · The results indicate that within a wide concentration range, the viscosity curves for these cationic microgels perfectly correspond to the Krieger–Dougherty model as modified by Tan et al. In particular, the specific volume in this model decreases at the critical overlapping concentration and reveals the interaction intensity between ...
Get Price2015-06-01 16:40:08. Factors influence the viscosity of polyacrylamide. Anionic 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 ...
Get Pricehow to test the solid content of cationic polyacrylamide? Cationic Polyacrylamide . Coution：The strong acid and strong base and organic solvent which using in this standard have corrosivity and poisonousness, When using, should avoid inhalation or touch with skin.Splashed on should rinse immediately with plenty of water, when serious should go to a doctor immediately.
Get PriceCationic Polyacrylamide P(AM-DAC-BA) was synthesized by UV initiation, with acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DAC), butyl acrylate (BA) as the monomers. P(AM-DAC-BA). UV spectroscopy and infrared spectroscopy were employed to study the structural characteristics.
Get PriceDr. Bruce Perrault, Ph.D , (Georgia Institute of Technology (Georgia Tech), USA) Fluorocompounds areone of the important parts of our daily life, concerning alimentation, health care or leisure time as well as the alternative energy sector, which is of an increasing significance in times of …
Get Price2019-7-31 · Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance ... and photoinitiator concentration on the intrinsic viscosity [] of P(AM-DAC-BA) were investigated. RSM model based on the in uencing data was established for optimizing synthetic conditions. It …
Get Price2018-11-29 · various parameters on intrinsic viscosity, conversion, and dissolvability. Results showed that the best performance was obtained at indices of 0.45 wt‰ redox initiator concentration, 0.2 wt‰ azo initiator concentration, 40.0 wt% cationic monomer, 3 wt‰ urea, and first- and second-stage light intensities of 8.5 and 13 mW/cm2, respectively ...
Get PriceA ternary cationic polyacrylamide (CPAM) with the hydrophobic characteristic was prepared through ultraviolet- (UV-) initiated polymerization technique for the estrone (E1) environmental estrogen separation and removal. The monomers of acrylamide (AM), acryloyloxyethyl-trimethyl ammonium chloride (DAC), and acryloyloxyethyl dimethylbenzyl ammonium chloride (AODBAC) were used to …
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 PriceUV-Initiated polymerization of cationic polyacrylamide: synthesis, characterization, and sludge dewatering performance ... and photoinitiator concentration on the intrinsic viscosity [η] of P(AM-DAC-BA) were investigated. RSM model based on the influencing data was established for optimizing synthetic conditions. It was found that, at light ...
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 PriceThe best synthetic conditions that were optimized by fitting RSM model while setting the photoinitiator concentration from 0.025 to 0.075 wt%, incident light intensity from 700.0 to 1700.0 μw·cm 2, and illumination time from 40 to 120 min were given that the cationic degree, photoinitiator concentration, light intensity, and illumination time ...
Get Price2014-5-1 · Cationic Polyacrylamide P(AM-DAC-BA) was synthesized by UV initiation, with acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DAC), butyl acrylate (BA) as the monomers. P(AM-DAC-BA). UV spectroscopy and infrared spectroscopy were employed to …
Get Pricewith increasing polyacrylamide concentration, showing the formation of more larger, denser flocs. Final sediment height tends to decrease with an increase in polyacrylamide concentration, indicating denser particle associations (face-to-face) and verified with scanning electron microscopy.
Get Price2018-11-29 · various parameters on intrinsic viscosity, conversion, and dissolvability. Results showed that the best performance was obtained at indices of 0.45 wt‰ redox initiator concentration, 0.2 wt‰ azo initiator concentration, 40.0 wt% cationic monomer, 3 wt‰ urea, and first- and second-stage light intensities of 8.5 and 13 mW/cm2, respectively ...
Get Price2020-12-30 · Procedure: A. Intrinsic viscosity determination by Ubbelhode viscometer: 1. Keep ready the solvent for this experiment: 0.05 M NaNO3 and 0.02% NaN3.Use previously prepared PAM solutions (Co = 4%, 8% or 12%) to form diluted solutions of concentration Ci such that C1 = 0.0010 g/cm3 C2 = 0.0015 g/cm3 C3 = 0.0020 g/cm3 C4 = 0.0025 g/cm3 The values of Ci need not be exactly as shown, as long …
Get PriceViscosity, cP Aging Time, min Cationic 0.5%, Clarifloc C-9545 Tap Water W3 600 1100 1600 2100 2600 3100 0 2040 6080 100 Aging Time, min Anionic 0.5%, Drewfloc 2270 Tap Water W3 - Viscosity of polymer solution with reclaimed water: significantly lower - Polymer solution with reclaimed water: degraded over aging > 10 -30 min
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 Price1992-5-5 · The intrinsic viscosity behavior for cationic polyelectrolyte resulting from the electrostatic repulsive force of the polymer chain is contrasted with polyampholyte. The polyelectrolyte in the presence of KCl has a lower degree of binding, indicating that the proton ion (H + ) is relatively difficult to bind to the CH 3 SO 4 − at the polymer end.
Get Price2017-9-26 · not appear to be stirring due to high viscosity, try a lower concentration of polymer, but in no case should the concentration be reduced to below 0.25% or poor dissolutionmay result. If mixing remains inadequate, add larger impellers (or more impellers) to the mixing shaft and increase the horsepower of the mixer, if necessary.
Get Price2019-6-17 · adsorption of cationic polyacrylamide onto cellulosic fibres3.4.s.M. This is perhaps due to the very complex nature of the process of adsorption and the diversified properties of the cellulose as well as of the polymers used for adsorption. We, therefore, have studied the adsorption of a cationic polymer, quaterinized cationic polyacrylamide
Get Pricewith increasing polyacrylamide concentration, showing the formation of more larger, denser flocs. Final sediment height tends to decrease with an increase in polyacrylamide concentration, indicating denser particle associations (face-to-face) and verified with scanning electron microscopy.
Get Price2021-7-6 · Cationic polyacrylamide (CPAM) and cationic starch have been used as dry strength agents for many years in papermaking. However, CPAM is more suitable than cationic starch due to its lower required dosage. Recently, amphoteric polyacrylamide (AmPAM) has been used as a dry strength agent in the paper industry and other fields.
Get PriceCationic Polyacrylamide, short name is CPAM, also called Cationic Polyelectrolyte, is copolymer of acrylamide and quaternized cationic monomer with different range of molecular weight from 5-12 million, and a charge density ranging from 10-50%. Our C-9030 …
Get PriceSolution properties of Cationic Polyacrylamide Modified with Fluorinated . ... The apparent viscosity of FPAM solution increases with increasing the FPAM concentration both in water and salt solution. There are maximum values of the apparent viscosity of FPAM with addition of sodium chloride, CTAB and sodium dodecyl sulfate (SDS), respectively.
Get Price2018-5-18 · Cationic polyacrylamide copolymers (PAMs) are used for sludge dewatering in municipal waste water treatment and might enter the environment by spreading of the sludge on agricultural land. Concern has been expressed since little is known about the degradation of PAMs in soils. To obtain detailed information on the polymer’s fate in the soil compartment, the degradation of 14C …
Get Price2012-7-22 · Polyacrylamide Emulsions Handbook 2-2 Storage and handling of emulsions : basic principles Emulsions must be stored inside a building at a constant temperature between 5°C and 30°C. During the storage and handling, the emulsion must not be contaminated by water.
Get Pricea mixture of a relatively undegraded guar gum having a viscosity at a concentration of 1% by weight in water of about 500 centipoises or more with a polyacrylamide having a degree of polymerization between about 12,000 and about 250,000 with the weight ratio of guar gum to polyacrylamide ranging from about 0.5:1 to about 50:1 or higher. a process for forming a thickening composition by ...
Get Price2017-9-26 · not appear to be stirring due to high viscosity, try a lower concentration of polymer, but in no case should the concentration be reduced to below 0.25% or poor dissolutionmay result. If mixing remains inadequate, add larger impellers (or more impellers) to the mixing shaft and increase the horsepower of the mixer, if necessary.
Get Priceconcentration and clay NPs. In this series, optimum concentration is lower than 4200 ppm (0.9%wt NPs). The rheology solutions curves of PAM at various concentrations are shown in Fig. 2. With increasing concentration of polymer as expected, viscosity of samples increased. From the figure, it can
Get Price2012-7-22 · Polyacrylamide Emulsions Handbook 2-2 Storage and handling of emulsions : basic principles Emulsions must be stored inside a building at a constant temperature between 5°C and 30°C. During the storage and handling, the emulsion must not be contaminated by water.
Get Price2021-5-27 · Stirring is only to ensure that the solids of the cationic flocculant polyacrylamide are dispersed immediately and will not stick and agglomerate. The addition rate of the flocculant polymer should also decrease as the viscosity of the solution increases.
Get Price2017-11-3 · The cellulose viscosity was determined according to Tappi T 230 om-94 in cupriethylenediamine (CED) solution at 0.5% cellulose concentration. All measurement were s carried out in duplicates, and the average was reported. S10 or S18 of pulp samples were determined according to TAPPI T 235 cm-00 using sodium hydroxide solution of
Get Price2009-11-24 · [0010] In a preferred embodiment hydrogen peroxide is added at a concentration of about 0.004%, to a well treating fluid containing fresh water and about 0.01% polyacrylamide. For ease of handling the hydrogen peroxide is preferably added as a 7% solution and the polyacrylamide is added as about a 32% emulsion.
Get PriceEquivalent to Magnafloc LT22 Blufloc Cationic Polyacrylamide CPAM. Blufloc Description. Polyacrylamide has a certain amount of polar groups on the molecular chain, it can through the adsorption of solid particles suspended in water, bridging between particles or through the charge and make the particle formation of large flocs condensation.
Get PriceGenerally, the higher the molecular weight, the higher the concentration necessary. Copolymers also generally require a higher concentration than homopolymers to obtain a similar reduction in viscosity. Copolymers of cationic monomer and non-ionic monomer (preferably less than 50 mole percent non-ionic component) may also be used.
Get Price2008-6-13 · The exemplified glyoxalated polyacrylamide products in U.S. Pat. No. 4,605,702 have a concentration of about 20% by weight cationic monomer, but were indicated as being used in much higher dosages to compare wet strength properties with exemplified products in U.S. Pat. No. 3,556,932.
Get Price