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).

anionic polyacrylamide thermal stability in afghanistan

  • Impact of anionic polyacrylamide on stability and

    The stability mechanism and thermal properties of the system alumina-anionic polyacrylamide (PAM) was studied. The polymer's adsorption properties in dependence on the following parameters solution pH (in the range 3-9), temperature (in the range 15-35 °C), and carboxyl groups' content in the PAM chains (in the range 5-30 %) were examined.

    Get Price
  • Impact of anionic polyacrylamide on stability and

    2016-7-9 · The stability mechanism and thermal properties of the system alumina–anionic polyacrylamide (PAM) was studied. The polymer’s adsorption properties in dependence on the following parameters solution pH (in the range 3–9), temperature (in the range 15–35 °C), and carboxyl groups’ content in the PAM chains (in the range 5–30 %) were examined.

    Get Price
  • Impact of anionic polyacrylamide on stability and surface ...

    2017-8-26 · stability properties of anionic polyacrylamide (PAM; with a differing content of carboxyl groups) in the aqueous suspen-sion of aluminum(III) oxide in the temperature range 15– 35 °C. Thermogravimetric analysis of the examined systems wasalsoperformedtoobtaintheadditionalinformationabout PAM adsorption mechanism. The …

    Get Price
  • Thermal stability of high-molecular-weight

    The above reported data show that temperature affects the stability of commercial polyacrylamide solutions in two different ways: The first process that increases the anionic character of polymers is responsible for the viscosity loss in the presence of monovalent salts and for eventual precipitation in the presence of divalent salts even if the molecular weight is not changed.Such a process will be …

    Get Price
  • Investigation of the degradation and stability of ...

    2016-12-1 · Investigation of the degradation and stability of acrylamide-based polymers in acid solution: Functional monomer modified polyacrylamide ... Acrylamide copolymers with cationic or anionic monomers exhibit good thickening, acid resistance, ... Kinetic and mechanistic studies of the thermal stabilization of polyacrylamide by metal ions. Polym ...

    Get Price
  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as …

    Get Price
  • Design and Study of a Novel Thermal-Resistant and Shear ...

    2017-7-21 · The cationic or anionic polyacrylamide exhibited perfect temperature resistance and thickening ability in fresh water. Copolymers bearing only positive or negative charges possess only electrostatic repulsive forces in their molecular chains. The polymer chain expands to have a large hydrodynamic volume in fresh water.

    Get Price
  • Thermal stability of polyacrylamide solutions: effect of ...

    We have investigated the effect of temperature on the chemical (hydrolysis) and thermal (molecular weight) stability of purified polyacrylamide solution.From viscosity and light scattering data we show that no polymer degradation due to oxygen contamination results from heating polymer solutions although higher temperature is responsible for hydrolysis of amide groups.

    Get Price
  • The Two-Stages Thermal Degradation of

    1998-5-1 · Representative results are shown in Fig. 1 Fig. 2, where the TG and DTG curves for the thermal decomposition of a 6 mg polyacrylamide sample are shown with 5, 10, 20 and 40°C/min under 60 ml/min nitrogen gas.The residual mass after pyrolysis is expressed as residual mass percent, wt%. The variation of wt% with reaction temperature (T) is shown in Fig. 1.

    Get Price
  • The thermal degradation of polyacrylamide with

    2000-2-1 · Fig. 1 Fig. 2 Fig. 3 Fig. 4 show the TG and DTG curves for the thermal decomposition of the 6 mg polyacrylamide sample heated at 10, 20 and 40°C/min under 60 ml/min nitrogen gas. The residual mass after pyrolysis is expressed by a residual mass percent, wt%. The variation in wt% with reaction temperature (T) is shown in Fig. 1, Fig. 2.Obviously, there are two principal reaction stages as ...

    Get Price
  • Evaluation of the Gel Profile Control Agent

    2020-8-14 · 1.1 Thermal Stability of Profile Control Agent Anionic delayed cross-link polymer gel profile control agent is one modified kind of compound ion profile control agent, which the main agent compound ion polymer is displaced with anionic polyacrylamide on the condition of …

    Get Price
  • Anionic Polyacrylamide Less Price High Purity Fast

    Anionic Polyacrylamide. From us, you can easily purchase Anionic Polyacrylamide at great prices. Place online order and we will dispatch your order through DHL, FedEx, UPS. You can also request for a quote by mailing us at [email protected]

    Get Price
  • A KINETIC ANAYSIS OF THE DEGRADATION OF GRAFTED

    2010-3-26 · Grafted anionic polyacrylamide gel has been synthesised in the laboratory following radical polymerisation process. Kinetics of thermal degradation of synthesised gel was evaluated under nonisthothermal condition by integral approximation method to determine the thermal stability of the material from thermogavometric study.

    Get Price
  • Anionic Polymer Flocculant & Polyacrylamide Powder ...

    Compared with thermal initiation, UV-initiation was proved to be more effective in promoting surface modification, increasing the polymerization degree, improving thermal stability, and …

    Get Price
  • Synthesis of anion polyacrylamide under UV initiation

    The key factor fueling the growth of the Asia Pacific polyacrylamide industry is rising wastewater treatment plants in the region. Get more details on this repo

    Get Price
  • Fabricating an anionic polyacrylamide (APAM) with an ...

    2019-12-1 · In contrast simultaneous thermal analysis can be applied to determine the effective PAM content in smectite-PAM composites. At the same time, information on the thermal stability of PAM and of smectite-PAM composites are available. Tutas et al. (1987) studied the decomposition of polyacrylamide (PAM) up to 600 °C under N 2 using simultaneous ...

    Get Price
  • asia pacific polyacrylamide market price value analysis ...

    Polyacrylamide Thermal stability Recycling efficiency a b s t r a c t Immobilization is a unique method for the improvement of product yield. During solid phase catalysis,

    Get Price
  • Simultaneous thermal analysis of cationic, nonionic

    Thermodynamic stability of polyacrylamide and poly(N,N‐dimethyl acrylamide) ... Thermal degradation to form a radical would require the cleavage of carbon–carbon bonds in the polymer chain; the energy needed for this cleavage was found to depend on the structure of the repeat unit which ranged from low of 72.5 kcal for a rare head‐to ...

    Get Price
  • CCT Case Study - Cation Friendly Anionic Polymer Use

    2020-10-3 · Anionic polyacrylamide is hydrolyzed to increase its ability to crosslink and reduce its susceptibility to interactions with cations present. Cationic polyacrylamides also go through a process of blending with surfactants which make them more stable cation heavy environments. The adverse conditions will expose the thermal stability of

    Get Price
  • Fabricating an anionic polyacrylamide (APAM) with

    Fabricating an anionic polyacrylamide (APAM) with an anionic block structure for high turbidity water separation and purification†. Li Feng ab, Huaili Zheng * ab, Baoyu Gao c, Shixin Zhang ab, Chuanliang Zhao ab, Yuhao Zhou ab and Bincheng Xu ab a Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.

    Get Price
  • Mechanical and Thermal Stability of Polyacrylamide

    2013-4-8 · The exceptional mechanical and thermal stability of the polyacrylamide-based microgels and their easiness to be tailored for the required application make these chemicals excellent candidates as future sweep improvers under harsh reservoir conditions in which other conventional polymers might fail.

    Get Price
  • Process and application of polyacrylamide PAM -

    Polyacrylamide has good thermal stability. Due to the structure unit with polar groups, amide, easy to form hydrogen bonds, so that it has good water solubility and high chemical activity, easy by grafting and crosslinking are even or reticular structure of various modifying properties.

    Get Price
  • Advantages of using anionic polyacrylamide as a

    2019-9-5 · Second, the advantages of anionic polyacrylamide used as a binder in perfumery Advantages of the adhesive anionic polyacrylamide when used in perfumery: 1, good thermal stability, in the larger temperature range (-18-130 ° C) does not affect winter production and high temperature drying. 2.

    Get Price
  • Sinofloc Polyacrylamide with AMPS - Sinofloc

    However, although the most commonly used polyacrylamide has a certain oil displacement effect, the viscosity of polyacrylamide decreases rapidly with the increase of the mineralization degree of formation water. At the same time, the oil well temperature of the oil layer is higher and the thermal stability of polyacrylamide is affected.

    Get Price
  • China Anionic Polyacrylamide Manufacturer and

    2021-6-4 · Anionic Polyacrylamide Manufacturers, Factory, Suppliers From China, Our ultimate goal is to rank as a top brand and to lead as a pioneer in our field. We are sure our successful experience in tool production will win customer's trust, Wish to co-operate and co-create a better future with you!

    Get Price
  • Removal of anionic dyes from aqueous solutions using ...

    2017-3-27 · The thermal stability of the synthesized hydrogels was examined by TGA. The results of TGA for hydrogels are represented in Fig. 3. The thermal degradation of PAM hydrogel occurred in three weight loss regions: the first weight loss between 50 and 208oC was attributed to the loss of physically adsorbed and interlayer water,

    Get Price
  • Cas 9003-05-8,Polyacrylamide | lookchem

    Anionic and cationic polyacrylamide Polyacrylamide is non-toxic and with a high molecular weight and is highly water soluble, and can introduce a variety of ionic groups for adjusting the molecular weight to obtain specific performance; it has good adhesion to many solid surface and dissolved substances, and can adhere or bridge the suspended particles dispersed in the solution for ...

    Get Price
  • Thermal Stability of Immobilized Glucoamylase

    2014-9-9 · Glucoamylase[α-1,4: 1,6-glucan-4: 6-glucohydroease, EC 3.2.1.3] from Rhizopus niveus was entrapped in polyacrylamide gels and adsorbed onto SP-Sephadex C–50 to elucidate the thermostability mechanism of immobilized enzymes. The thermal stability of immobilized glucoamylase entrapped in polyacrylamide gels was enhanced slightly compared with glucoamylase in free solution, and was …

    Get Price
  • Mechanical and thermal stability of polyacrylamide

    The exceptional mechanical and thermal stability of the polyacrylamide-based microgels and their easiness to be tailored for the required application make these chemicals excellent candidates as future sweep improvers under harsh reservoir conditions in which other conventional polymers might fail.

    Get Price
  • Evaluation of the Gel Profile Control Agent

    Based on the system of anionic delayed cross-link polymer gel type deep profile control agent, experiments are conducted to evaluate the performance of long-term thermal stability, shearing resistance, and compatibility with natural debris of profile control agent and compatibility with ASP compound system.

    Get Price
  • Advantages of using anionic polyacrylamide as a

    2019-9-5 · Second, the advantages of anionic polyacrylamide used as a binder in perfumery Advantages of the adhesive anionic polyacrylamide when used in perfumery: 1, good thermal stability, in the larger temperature range (-18-130 ° C) does not affect winter production and high temperature drying. 2.

    Get Price
  • asia pacific polyacrylamide market price value analysis ...

    The key factor fueling the growth of the Asia Pacific polyacrylamide industry is rising wastewater treatment plants in the region. Get more details on this repo

    Get Price
  • Anion/cation Nonionic Pam Polyacrylamide Partial ...

    Our 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 Price
  • China Anionic Polyacrylamide Manufacturer and

    2021-6-4 · Anionic Polyacrylamide Manufacturers, Factory, Suppliers From China, Our ultimate goal is to rank as a top brand and to lead as a pioneer in our field. We are sure our successful experience in tool production will win customer's trust, Wish to co-operate and co-create a better future with you!

    Get Price
  • Sinofloc Polyacrylamide with AMPS - Sinofloc Chemical

    However, although the most commonly used polyacrylamide has a certain oil displacement effect, the viscosity of polyacrylamide decreases rapidly with the increase of the mineralization degree of formation water. At the same time, the oil well temperature of the oil layer is higher and the thermal stability of polyacrylamide is affected.

    Get Price
  • Removal of anionic dyes from aqueous solutions using ...

    2017-3-27 · The thermal stability of the synthesized hydrogels was examined by TGA. The results of TGA for hydrogels are represented in Fig. 3. The thermal degradation of PAM hydrogel occurred in three weight loss regions: the first weight loss between 50 and 208oC was attributed to the loss of physically adsorbed and interlayer water,

    Get Price
  • Application of Polyacrylamide in agricultural

    2015-5-2 · Polyacrylamide as colorless granule solution for viscous liquid, nearly transparent, non-toxic, non corrosive, at 150 DEG C to thermal decomposition in the environment, good stability. A cationic, anionic, nonionic, zwitterionic and other types of ultra high molecular weight polyacrylamide, with different polymerization degree, with molecular ...

    Get Price
  • Thermal Stability of Immobilized Glucoamylase

    2014-9-9 · Glucoamylase[α-1,4: 1,6-glucan-4: 6-glucohydroease, EC 3.2.1.3] from Rhizopus niveus was entrapped in polyacrylamide gels and adsorbed onto SP-Sephadex C–50 to elucidate the thermostability mechanism of immobilized enzymes. The thermal stability of immobilized glucoamylase entrapped in polyacrylamide gels was enhanced slightly compared with glucoamylase in free solution, and was …

    Get Price
  • CCT Case Study - Cation Friendly Anionic Polymer Use

    2020-10-3 · Anionic polyacrylamide is hydrolyzed to increase its ability to crosslink and reduce its susceptibility to interactions with cations present. Cationic polyacrylamides also go through a process of blending with surfactants which make them more stable cation heavy environments. The adverse conditions will expose the thermal stability of

    Get Price
  • Fabricating an anionic polyacrylamide (APAM) with an ...

    Polyacrylamide (PAM) is a general designation of acrylamide polymer or polymer with other monomers. The has good thermal stability. Because of the structural elements that contain polar groups, it is easy to form hydrogen bonds, so that it has good water solubility and high chemical activity.

    Get Price
  • Study on Application of Polyacrylamide in drinking

    Polyacrylamide has good thermal stability. Due to the structure unit with polar groups, amide, easy to form hydrogen bonds, so that it has good water solubility and high chemical activity, easy by grafting and crosslinking are even or reticular structure of various modifying properties.

    Get Price
  • Process and application of polyacrylamide PAM -

    Anionic and cationic polyacrylamide Polyacrylamide is non-toxic and with a high molecular weight and is highly water soluble, and can introduce a variety of ionic groups for adjusting the molecular weight to obtain specific performance; it has good adhesion to many solid surface and dissolved substances, and can adhere or bridge the suspended particles dispersed in the solution for ...

    Get Price
  • Cas 9003-05-8,Polyacrylamide | lookchem

    2020-9-25 · tested in bentonite flocculation comparing to synthetic polyacrylamide references. At the end, thermal stability of some samples is measured. Based on the results, xanthan gum, carboxymethylcellulose and guar gum derivatives appear to be the …

    Get Price
  • PRO GRADU ANIONIC BIOPOLYMER DERIVATIVES AND

    2009-6-29 · years at 120°C. Within our experimental error, HPAM stability was the same with/without oil (decane). An acrylamide-AMPS copolymer (with 25% AMPS) showed similar stability to that for HPAM. Stability results were similar in brines with 0.3% NaCl, 3% NaCl, or 0.2% NaCl + 0.1% NaHCO3. At temperatures of 160°C and above, the polymers were more ...

    Get Price
  • Stability of Partially Hydrolyzed Polyacrylamides at ...

    2020-7-31 · The thermal stability of the dispersion at 80 °C for 120 days was observed by visual inspection and spectroscopic analysis. The results showed that the zwitterionic polymer produced excellent brine stability with GO nanosheets and suggested promising applications of zwitterionic polyacrylamide−GO systems especially for enhanced oil recovery. 1.

    Get Price
  • Nonionic Polyacrylamide Available Top Quality at Best

    Disulfilde bonds and thermal stability in T4 lysozyme ... polyacrylamide gels as described (15). Variants containing the Ile-3 -* Cys-3, Cys-54 -+ Thr-54, Cys-54 -* Val-54, and ... Stability is more rigorously characterized as the free energy of denaturation at a given temperature, AG(T), which may be

    Get Price
  • CCT Case Study - Cation Friendly Anionic Polymer Use

    2020-10-3 · Anionic polyacrylamide is hydrolyzed to increase its ability to crosslink and reduce its susceptibility to interactions with cations present. Cationic polyacrylamides also go through a process of blending with surfactants which make them more stable cation heavy environments. The adverse conditions will expose the thermal stability of

    Get Price
  • New Polymers for EOR Applications | SPE Improved

    The thermal stability of hydrogels prepared from a new polymer and polyvalent metal ions is compared with Xanthan and anionic polyacrylamide analogs. The Xanthan gels were found to he unstable at temperatures >50deg.C. The polyacrylamide system could be optimized to give good long-term stability at 90deg.C. Above this temperature, degradation ...

    Get Price
  • Characteristics and applications of polyacrylamide -

    2021-4-1 · Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. It is a hard glassy solid at room temperature. The products include glue, latex and white powder, translucent beads and flakes. Good thermal stability. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid.

    Get Price
  • PRO GRADU ANIONIC BIOPOLYMER DERIVATIVES AND

    2020-9-25 · tested in bentonite flocculation comparing to synthetic polyacrylamide references. At the end, thermal stability of some samples is measured. Based on the results, xanthan gum, carboxymethylcellulose and guar gum derivatives appear to be the …

    Get Price
  • Metallurgical waste water treatment by PAM -

    Metallurgical industry output a lot of air and water pollution, caused great harm to the environment. APAM anionic polyacrylamide flocculant iron and steel metallurgy sewage treatment, sewage flocculation metal particles form groups to achieve the purpose of sewage treatment, high efficiency, good effect. Metallurgical industry many products, the production process into a series of various ...

    Get Price
  • Comparison of adsorption affinity of ionic

    2017-4-25 · The anionic PAM addition causes considerable improvement of metal oxide suspension stability and this effect is the greatest for the alumina-containing system – the TSI decrease by 57.8 units (for the Cr 2 O 3 system the reduction of TSI is 27.8 and for the ZrO 2 system - 33.2). The adsorption of completely dissociated polymer chains on the ...

    Get Price
  • High Temperature Stability of Aqueous Foams for

    2021-3-1 · certain temperature and pressure range, non-ionic surfactants the optimum HLB value was around 17. The thermal stability of foams of non-ionic surfactant was improved with the addition of ethylene oxide, while anionic surfactant had much better thermal stability compared to …

    Get Price
  • A comparative study of immobilized lipase produced

    2016-7-20 · Effect of pH on Stability of Free and Immobilized Lipase The free lipase was found to be stable at neutral pH, whereas optimum pH shifted from 7 to 7.5 for lipase entrapped in calcium alginate and from 7 to 9 for those entrapped in polyacrylamide beads. The free lipase retained maximum stability …

    Get Price
  • Investigations of chromium(III) oxide removal from

    The main purpose of experiments was determination of the adsorption mechanism of two forms of ionic polyacrylamide (PAM) on the surface of chromium(III) oxide dispersed in the aqueous medium. This was performed in relation to anionic polyacrylamide (AN PAM) and cationic one (CT PAM) in the simple systems (containing only one selected polymer) and in the mixed systems (containing both ionic ...

    Get Price
  • Synthesis and characterization of porous hydrogel

    2021-7-12 · Full Article. Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide. Qinghua Feng, a,b Jinling Li, a Heli Cheng, a Fangeng Chen, c, * and Yimin Xie a, * A porous lignin-containing hydrogel was developed for dye removal via graft copolymerization of acetic acid lignin (AAL) and acrylamide (AAm), in the presence of ethyleneglycol dimethacrylate (EGDMA) as a ...

    Get Price
  • Fabricating an anionic polyacrylamide (APAM) with an ...

    Fabricating an anionic polyacrylamide (APAM) with an anionic block structure for high turbidity water separation and purification†. Li Feng ab, Huaili Zheng * ab, Baoyu Gao c, Shixin Zhang ab, Chuanliang Zhao ab, Yuhao Zhou ab and Bincheng Xu ab a Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.

    Get Price
  • Full Scale Evaluation on Anionic Polyacrylamide

    The Polyacrylamide (PAM) is a frequently used flocculant for high concentration suspensions removal in water treatment characterized by the generation of large and dense flocs. In this paper, by using the anionic PAM as flocculant, a full-scale experimental study was carried out on flocculating ferric flocs sludge with pelleting flocculation blanket process under scale of 19~38 m3/h.

    Get Price
  • what are the physical properties of anionic

    2020-5-7 · Three is called anionic polyacrylamide flocculant, which is formed by the polymerization of acrylamide monomer, is a water-soluble linear polymers as a white powder, odorless, soluble in water, almost insoluble in benzene, ether, esters, acetone and other organic solvents, aqueous almost nearly transparent viscous liquid, non-corrosive, non ...

    Get Price
  • Degradation of Polyacrylamide and Its Derivatives in ...

    General features of degradation of polyacrylamide and its anionic and cationic derivatives under the action of radical degradative agents are considered. The molecular weight of these polymers can be controlled by varying the structure and concentration of the degradative agent and salt additions, the concentration, molecular weight, and composition of the initial (co)polymer, and the process ...

    Get Price
  • Thermal stability of sulfonated polymers (Book) |

    1995-11-1 · The U.S. Department of Energy's Office of Scientific and Technical Information

    Get Price
  • A comparative study of immobilized lipase produced

    2016-7-20 · Effect of pH on Stability of Free and Immobilized Lipase The free lipase was found to be stable at neutral pH, whereas optimum pH shifted from 7 to 7.5 for lipase entrapped in calcium alginate and from 7 to 9 for those entrapped in polyacrylamide beads. The free lipase retained maximum stability …

    Get Price
  • Why the Polyacrylamide Market Is Set To Explode? |

    2021-5-12 · The Asia Pacific polyacrylamide market forecast is projected to benefit from the advantageous properties such as high degree of water solubility, superior thermal stability…

    Get Price
  • High Temperature Stability of Aqueous Foams for

    2021-3-1 · certain temperature and pressure range, non-ionic surfactants the optimum HLB value was around 17. The thermal stability of foams of non-ionic surfactant was improved with the addition of ethylene oxide, while anionic surfactant had much better thermal stability compared to …

    Get Price
  • Rheological and thermal properties of novel surfactant ...

    2016-5-18 · The first SP system contained partially hydrolyzed polyacrylamide and alkyl polyethylene glycol ether‐based non‐ionic surfactant. The second SP system consisted of the same polymer and alcohol propoxylate sulphate‐based anionic surfactant. Rheology, thermal stability, interfacial tension (IFT), and core flooding experiments were performed ...

    Get Price
  • Self-Assembly Preparation of Nano-Lignin/Cationic ...

    2021-5-25 · in deionized water to obtain an anionic polymer electrolyte solution (2000 mg/L). While vigorously stirring the cationic solution at room temperature, the anionic solution was slowly added dropwise to the cationic solution at a CL/CPAM mass ratio of 100:1. This is an optimized ratio by reaching a zeta potential of 12 mV to stabilize nano-particles.

    Get Price