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cationic polyacrylamide thermal stability in albania

  • Investigation of the degradation and stability of ...

    2016-12-1 · Zhang et al. , synthesized the polymer thickening agent DXGY-1, which is a cationic polyacrylamide. Its viscosity retention ratio in 12% HCl + 3% HF reached 82%. Liu et al. ... The thermal stability of polyacrylamides in EOR applications. SPE Improved Oil Recovery Conference, Society of Petroleum Engineers (2016, April) Google Scholar

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  • Cationic Polyacrylamide Less Price High Purity Fast

    Due to the strength of the C–F bond, fluorine containing compounds exhibit a high thermal and oxidative stability, low polarity, weak intermolecular interactions and a small surface tension compared to hydrocarbons. ... From us, you can easily purchase Cationic Polyacrylamide at great prices. Place online order and we will dispatch your order ...

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  • Theoretical studies of hydrolysis and stability of ...

    2015-11-1 · The hydrolysis reaction of the amide group (AM) to form acrylic acid (AA) is significantly affected by the pH of solution and the presence of cationic species such as Ca 2+. Without catalyzed, PAM is thermally stable with transition barriers as high as 50 kcal/mol.

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  • Thermal decomposition behavior and mechanism

    2020-8-5 · The thermal decomposition behavior of polyacrylamide poly (methacryloyloxyethyl trimethylammonium chloride-acrylamide) (P (DMC-AM)) was studied by means of TG and DSC under nitrogen atmosphere at temperature range of 323.15–823.15 K. The effect of cationicity on thermal stability was discussed. The TG/DSC curves indicated that the decomposition ...

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  • 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 ...

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  • Simultaneous thermal analysis of cationic, nonionic

    2019-12-1 · 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 thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC). They detected three mass loss steps at 110, 330 and 400 °C, …

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  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · Thermal degradation of polyacrylamide (in the absence of free radicals) does not cause substantial chain scission except at very high temperatures, on the order of 300 °C.

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  • Impact of anionic and cationic polyacrylamide on

    2015-1-17 · In the case of cationic polyacrylamide, the mechanism of suspension stability in its presence has rather electrosteric character. This process is facilitated by the more extended conformation of PAM-adsorbing macromolecules (99.9 % degree of ionization of the functional groups). They assume on the solid surface more stretched structure.

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  • Polyacrylamide beads: Polymer entrapment increases the ...

    polyacrylamide provides a suitable internal macroenvironment for the enzyme [17]. Silva et al. [18] reported that the thermal stability of polyacrylamide might be due to the presence of strong ...

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  • Hydrophobic modification of cationic microblocked ...

    2019-4-9 · Usually, thermogravimetric analysis is utilized in materials thermal stability analysis, but there are also researches using thermogravimetric curves to explore the microblock structure in the macrochain [13, 34]. In Fig. 7, it can be clearly seen that both P-ADL and TP-ADL exhibit four stages of weight loss. At the first stage, P-ADL loses 3.9 ...

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  • Polyacrylamide | Tradeasia International

    Polyacrylamide is widely used to flocculate or coagulate solids suspended particles in various types of wastewater, such as municipal sewage, dyeing, leather, industrial wastewaters. Others Polyacrylamide is used in irrigation water in agriculture to improve soil texture, sugar refining, where it can be used in beet or cane juice clarification.

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

    2017-7-21 · In this work, a novel thermal-resistant and shear-stable amphoteric polyacrylamide (PASD), prepared from acrylamide (AM), sodium styrene sulfonate (SSS), and acryloxyethyl trimethylammonium chloride (DAC) monomers, was prepared by free-radical polymerization in high-salinity solution.

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  • 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.

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  • Europe Polyacrylamide Market Share Analysis |

    2021-5-25 · dispersed throughout, the polymer matrix. Lignin nanoparticles can improve the thermal stability and mechanical and barrier properties of the resulting composite material [8]. In addition, some studies have indicated that nano-lignin particles exhibit antibacterial and non-cytotoxic properties [9–11].

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

    2019-9-4 · 1 Article 2 Preparation, characterization, and sludge 3 conditioning of cationic polyacrylamide synthesized 4 by a novel UV-initiated system 5 6 Qingqing Guan1,*, Guocheng Zhu 2, Yi Liao c, Jin Xu 1, Xiaoxu Sun 1, Fang Tian 1, Jiaxing Xu 1 7 and Minghan Luo 1 8 1 Department of the Environmental Engineering, Nanjing Institute of Technology, 1 Hongjing Avenue,

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  • Preparation, characterization, and sludge conditioning of ...

    A 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 …

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  • Synthesis of a Cationic Polyacrylamide under UV

    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 ...

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  • Application of Polyacrylamide in agricultural

    2015-1-6 · THERMAL STABILITY OF A NEW CATIONIC PEROXIDASE PURIFIED FROM EUPHORBIA TIRUCALLI LATEX Afaf S. Fahmy 1,*, Ahmed M. H. Salem 2, Mahmoud M. Said Abd El-Hamid 2, Mohamed O. El-Badry 1, Rasha A.M. Azouz 1 1 Department of Molecular Biology, Division of Genetic Engineering and Biotechnology, National Research Center. 2 Department of

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  • ROLE OF CALCIUM IN ENHANCING THE ACTIVITY AND

    2020-9-9 · Among the cationic oligosaccharide family, β-(1 4)-linked 2,6-diamino-2,6-dideoxy-d-galactopyranose 4mer (ODAGal4) (Fig. 1A) is the most potent siRNA …

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  • Cationic Emulsion Polyacrylamide(id:11326312). Buy

    Cationic Emulsion Polyacrylamide(id:11326312). View product details of Cationic Emulsion Polyacrylamide from Investors Corner Trading Pty Ltd manufacturer in EC21

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  • thermal stability of montmorillonite polyacrylamide ...

    2021-5-15 · Thermal stability of high-molecular-weight polyacrylamide . 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 ...

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  • cas number: 900 thermal stability and solubility of ...

    Preparation and thermal study of polymers derived. Polyacrylamide (PAA) and some of its N-alkyl substituted derivatives have been synthesised and characterised using thermal analysis.Thermal stability was studied by thermogravimetry (TG) and differential scanning calorimetry (DSC) was used to determine the glass transition temperatures (T g).The results showed an increase in degradation ...

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  • mechanical and thermal stability of polyacrylamide

    Mechanical and Thermal Stability of Polyacrylamide-based. 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.

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  • Simultaneous thermal analysis of cationic, nonionic and ...

    2020-3-10 · simultaneous thermal analysis can be applied to determine the effective PAM contentin smectite-PAMcomposites.Atthe 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 N2 using simultaneous thermogravimetry

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  • Article Production of Cationic Polyacrylamide Flocculant P ...

    2019-9-4 · 1 Article 2 Production of Cationic Polyacrylamide Flocculant 3 P(AM–DMDAAC) by Microwave Assisted Synthesis, 4 its Characterization and Flocculation Perfomance 5 Peng Zhang*, Dongqin Zhao, Xue Zhang 6 School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China2 7 Affiliation 2; [email protected] 8 * Correspondence: [email protected]; …

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  • Polyacrylamide | Tradeasia International

    Polyacrylamide is widely used to flocculate or coagulate solids suspended particles in various types of wastewater, such as municipal sewage, dyeing, leather, industrial wastewaters. Others Polyacrylamide is used in irrigation water in agriculture to improve soil texture, sugar refining, where it can be used in beet or cane juice clarification.

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  • pam polyacrylamide pam good thermal stability

    Mechanical and Thermal Stability of Polyacrylamide-based 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 ...

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  • Europe Polyacrylamide Market Share Analysis |

    2021-6-7 · PAPER OPEN ACCESS Reduction thermal resistance methods in the . heat stabilizer is influenced by the junction of heat pipes [1], structure of the evaporator [2,3], pipe material, coolant and orientation. Kuzma-Kichta et al. [4,5] coated a thermal stabilizer evaporator to reduce thermal resistance by nanoparticles of aluminum oxide.

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  • Polyacrylamide | Tradeasia International

    Polyacrylamide is widely used to flocculate or coagulate solids suspended particles in various types of wastewater, such as municipal sewage, dyeing, leather, industrial wastewaters. Others Polyacrylamide is used in irrigation water in agriculture to improve soil texture, sugar refining, where it can be used in beet or cane juice clarification.

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  • Article Production of Cationic Polyacrylamide Flocculant

    2019-9-4 · 1 Article 2 Production of Cationic Polyacrylamide Flocculant 3 P(AM–DMDAAC) by Microwave Assisted Synthesis, 4 its Characterization and Flocculation Perfomance 5 Peng Zhang*, Dongqin Zhao, Xue Zhang 6 School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, China2 7 Affiliation 2; [email protected] 8 * Correspondence: [email protected]; …

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  • Waste activated sludge (WAS) dewatering

    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 ...

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  • Cas 9003-05-8,Polyacrylamide | lookchem

    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.

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  • Characteristics and applications of polyacrylamide -

    Highly cationic polyacrylamide ... was decreased, and the thermal stability of pitch deposits was improved. Therefore, it can be concluded that the presence of polymers not only decreases the pitch deposition (Dai et al. 2011), but also decreases the pitch tackiness within a temperature range of 100 to

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  • EFFECT OF POLYMERS AND METAL IONS ON THE

    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.

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  • Process and application of polyacrylamide PAM -

    2021-3-12 · There are several pathways through which a polymer can degrade such as thermal, photoinduced, biological, chemical and mechanical. The thermal degradation process of polymers is widely studied because of both academic and industrial interest. Here we have investigated the kinetics of thermal degradation and structural modification of polyacrylamide ultrathin films as a result of heat …

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  • Onset Kinetics of Thermal Degradation of Ultrathin ...

    2010-9-30 · The retention in porous medium for sulfonated polyacrylamide polymers was measured in core floods using outcrop Berea sandstone. For the studied polymer sacrificial agent may protect polymer structure at high temperature. Higher sacrificial agent concentration gives better thermal stability in both 5 wt % NaCl and SSW solvents.

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  • Viscosity and retention of sulfonated

    2021-5-12 · Shape-Stable Hydrated Salts/Polyacrylamide Phase-Change Organohydrogels for Smart Temperature ACS Applied Materials & Interfaces ( IF 9.229) Pub Date : 2021-04-27, DOI: 10.1021 Chenxiao Yin, Ji Lan, Xiangdong Wang, Yulin Zhang, Rong Ran, Ling-Ying Shi

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  • Polyacrylamide | Tradeasia International

    Polyacrylamide is widely used to flocculate or coagulate solids suspended particles in various types of wastewater, such as municipal sewage, dyeing, leather, industrial wastewaters. Others Polyacrylamide is used in irrigation water in agriculture to improve soil texture, sugar refining, where it can be used in beet or cane juice clarification.

    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.

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  • 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.

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  • China Polyacrylamide(PAM);polyacrylamide Water

    Polyacrylamide (PAM) is a linear polymer with good thermal stability. It can be dissolved in water in any proportion as polyacrylamide water treatment, and the aqueous solution is a uniform and transparent liquid. 1、Anionic polyacrylamide contains a certain number of polar groups in its molecular chain.

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  • Degradation of Polyacrylamide: A Review | Scientific.Net

    Water-soluble polyacrylamide is commercially available in different domains of industry, such as water purified, paper making, pharmacy, agriculture and oil exploitation. Especially polyacrylamide is used for polymer displacement, which can enhance oil recovery through increasing the sweeping efficiency. Good economic effects are achieved by the industrial application of polymer in various oil ...

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  • Polyacrylamide crosslinked by bis-vinylimidazolium

    2019-9-3 · A series of ionic compounds 1,n-dialkyl-3,3′-bis-l-vinylimidazolium bromide (C n VIM) are prepared and employed to crosslink acrylamide for polyacrylamide (PAAM) hydrogel preparation via in situ solution polymerization. The swelling behavior, mechanical properties and thermal stability of the prepared C n VIM crosslinked PAAM hydrogels are investigated.

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  • Synthesis and properties of polyacrylamide by ...

    Also the thermal test of the prepared HPAM/clay was investi-gated by the thermal gravimetric analysis as shown in Fig. 7. The thermogravimetric curves of the HPAM/clay showed three stages for the weight loss the same as that of the HPAM. The first one oc-curred in …

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  • Synthesis of a Novel Amphiphilic and Cationic Chitosan ...

    Synthesis of a Novel Amphiphilic and Cationic ... cationic polyacrylamide and polyaluminum chloride. It was found that, as compared with CS, the successful introduction of cationic and hydrophobic groups into the CS backbone resulted in a significantly broadened ... thermal stability of …

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  • Synthesis and properties of polyacrylamide by ...

    2017-1-1 · Polyacrylamide (PAM)-encapsulated clay nanoparticles (NPs) were successfully synthesised by conventional emulsion polymerisation for solving the aggregation matter of nanoscaled clay. A novel nanofluid based on PAM has been developed and its’ attributes have been experimentally tested as an optimised solution.

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  • Thermal stability of organoclays: effects of duration

    2010-11-15 · Thermal stability of octadecyltrimethylammonium bromide modified montmorillonite organoclay. Xi Y, Zhou Q, Frost RL, He H. J Colloid Interface Sci, 311(2):347-353, 12 Mar 2007 Cited by: 15 articles | PMID: 17418856

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  • 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.

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  • China Polyacrylamide(PAM);polyacrylamide Water

    Polyacrylamide (PAM) is a linear polymer with good thermal stability. It can be dissolved in water in any proportion as polyacrylamide water treatment, and the aqueous solution is a uniform and transparent liquid. 1、Anionic polyacrylamide contains a certain number of polar groups in its molecular chain.

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  • Chemical Stability Limits of Water-Soluble Polymers

    Thermal Stability of Polyacrylamides in Oilfield Brines Containing Ca2+, Ions. In the absence of oxidative degradation, it has been well established that the backbone chain of vinyl polymers, such as polyacrylamide, is quite thermally stable to temperatures as high as 120 degrees C [248 degrees F].

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  • 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 …

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  • China Polyacrylamide PAM CAS No. 9003-05-8

    According to statistics, 37% of the global production of polyacrylamide (PAM) is used for wastewater treatment, 27% is used in the petroleum industry, and 18% is used in the paper industry. 3·Polyacrylamide has good thermal stability and is easily soluble in cold water.

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  • Synthesis and properties of polyacrylamide by ...

    Also the thermal test of the prepared HPAM/clay was investi-gated by the thermal gravimetric analysis as shown in Fig. 7. The thermogravimetric curves of the HPAM/clay showed three stages for the weight loss the same as that of the HPAM. The first one oc-curred in …

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  • Gold Mine Used Cationic PAM /Polyacrylamide MSDS ...

    2020-3-16 · Gold Mine Used Cationic PAM /Polyacrylamide MSDS Flocculant Polyacrylamide is a linear polymer, it is soluble in water, almost insoluble in benzene, ethylbenzene, esters, acetone and other general organic solvents, the water solution is almost transparent viscous liquid, is a non-dangerous goods , Non-toxic, non-corrosive, solid polyacrylamide has hygroscopicity, moisture absorption ...

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  • Biohybrid methacrylated gelatin/polyacrylamide

    2021-7-11 · 45: Application of Tertiary Amine Cationic Polyacrylamide with High Cationic Degree in Salt-free Dyeing of Reactive Dyes,Teng, XX; Ma, W; Zhang, SF, CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2010, 18(6): 1023-1028.

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  • SOY PROTEIN HYDROLYSATE; SOLUBILITY, THERMAL

    2016-5-18 · thermal stability, solutions (5% w/v) of hydrolysates and SPI were subjected to heat treatment at 95°C for 60 min followed by centrifugation and determination of protein content in the supernatant using a nitrogen analyzer. Solubility and thermal stability at different protein concentrations (1%, 2.5%, 5%, and 7%) in a black tea beverage

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  • cationic polyacrylamide liquid conducive to soil stability

    The polyacrylamide is a synthetic cationic polymerization flocculants and so mainly related to chain length and the charge of the dewatering performance of polyacrylamide excessive dosage, the positive charge on the ion polyacrylamide adsorption, due to electrostatic repulsion, it will reduce the sludge settling performance, we should pay ...

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  • pam/polyacrylamide pam good thermal stability

    Polyacrylamide-Polyacrylamide-Shengli Oilfield Highland Petroleum Equipment Co., Ltd. PAM has good thermal stability below 100 , and will not decompose until 150 . Polyacrylamide and its derivant can be used widely in water treatment, paper making, petroleum, coal, …

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  • cationic polyacrylamide liquid conducive to soil

    2021-5-23 · cationic polyacrylamide liquid conducive to soil stability. 1/3 million most frequent English words . the 23135851162 of 13151942776 and 12997637966 to 12136980858 a 9081174698 in 8469404971 for 5933321709 is... 566617666 s 565123981 services 562206804 some 548829454 these 541003982 click 536746424 its 525627757 like... 82179578 oil 82178167 ...

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  • Synthesis and properties of polyacrylamide by ...

    Also the thermal test of the prepared HPAM/clay was investi-gated by the thermal gravimetric analysis as shown in Fig. 7. The thermogravimetric curves of the HPAM/clay showed three stages for the weight loss the same as that of the HPAM. The first one oc-curred in …

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  • China Polyacrylamide(PAM);polyacrylamide Water

    Polyacrylamide (PAM) is a linear polymer with good thermal stability. It can be dissolved in water in any proportion as polyacrylamide water treatment, and the aqueous solution is a uniform and transparent liquid. 1、Anionic polyacrylamide contains a certain number of polar groups in its molecular chain.

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  • Polyacrylamide thermal stability - Big Chemical

    Polyacrylamide thermal stability Synthetic polymers and natural polymers suitable for drilling muds are listed in Tables 1-7 and 1-8, respectively. Polyacrylamides are eventually hydrolyzed in the course of time and temperature. This leads to a lack of tolerance toward electrolyte contamination and to a rapid degradation inducing a loss of their properties.

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  • Degradation of Polyacrylamide: A Review | Scientific.Net

    Water-soluble polyacrylamide is commercially available in different domains of industry, such as water purified, paper making, pharmacy, agriculture and oil exploitation. Especially polyacrylamide is used for polymer displacement, which can enhance oil recovery through increasing the sweeping efficiency. Good economic effects are achieved by the industrial application of polymer in various oil ...

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  • Cationic Starches as Substitute for Synthetic Cationic ...

    2007-6-7 · Harbor sludge (about 25% total solid) has to be dredged to keep the waterways free. Thus, annually 1.2 million m3 of dredged material has to be cleaned. For this process, three different synthetic flocculants with optimal molar masses, ionogenities, and concentrations are added in order to get a good dewatering efficiency and shear strength of the flocs. But as synthetic flocculants bring ...

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  • improve thermal decomposition heat stabilizer in

    2021-6-7 · PAPER OPEN ACCESS Reduction thermal resistance methods in the . heat stabilizer is influenced by the junction of heat pipes [1], structure of the evaporator [2,3], pipe material, coolant and orientation. Kuzma-Kichta et al. [4,5] coated a thermal stabilizer evaporator to reduce thermal resistance by nanoparticles of aluminum oxide.

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  • Experimental analyses and molecular simulation of

    In the current study, two diverse cellulose models (water only; water, dicyandiamide, melamine and polyacrylamide) are developed and analyzed. Numerous model variables, including the diffusion coefficient of water and cellulose chain distance, are collated, in order to examine the effects of amines on the thermal stability of cellulose.

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  • anionic polymer supplier, anionic polymer supplier ...

    Our Polyacrylamide, include anionic, cationic and nonionic , had been widely applied in waste water treatment, mineral processing, printing and drying industries. ... Compatible with a wide range of elastomers and polymers, it has excellent transparency and thermal stability. It is used for PSAs and adhesives as well as for polymer modification ...

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  • Synthesis of a Cationic Polyacrylamide under UV

    2018-1-1 · 3.1.4. DSC/TGA Analysis. To assess the thermal stability of the copolymer PADA, the DSC/TGA analysis was used. There were three obvious weight loss stages in the thermal weight curve of PADA in Figure 6. The first stage (30-200[degrees]C, weight loss of 15.4 wt%) was ascribed to the moisture evaporation of adsorbed and bound water [23].

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  • Laboratory Study on the Potential EOR Use of

    Polymer flooding represents one of the most efficient processes to enhance oil recovery, and partially hydrolyzed polyacrylamide (HPAM) is a widely used oil-displacement agent, but its poor thermal stability, salt tolerance, and mechanical degradation impeded its use in high-temperature and high-salinity oil reservoirs. In this work, a novel viscoelastic surfactant, erucyl dimethyl ...

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  • Thermal stability of sulfonated polymers (Book) |

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

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  • The effects of SiO2 nanoparticles on the thermal

    Abstract The primary objective of this study is to investigate the effects of SiO2 nanoparticles on improving the rheological behavior and inhibition of the thermal degradation of hydrolyzed polyacrylamide (HPAM) solutions. The SiO2-HPAM interactions were evaluated through i) Polymer adsorption onto nanoparticles, ii) rheological studies, and iii) evaluation of thermal stability in presence or ...

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  • Synthesis and properties of polyacrylamide by ...

    2017-1-1 · Polyacrylamide (PAM)-encapsulated clay nanoparticles (NPs) were successfully synthesised by conventional emulsion polymerisation for solving the aggregation matter of nanoscaled clay. A novel nanofluid based on PAM has been developed and its’ attributes have been experimentally tested as an optimised solution.

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  • Gelled aqueous compositions - Hercules Incorporated

    Disclosed are gelled aqueous compositions in brine solutions having a salt concentration from about 1% to about 10% at a pH of about 3 to about 11 having (a) a water thickening amount of an anionic partially hydrolyzed polyacrylamide and (b) a water-soluble cationic polyamide-epichlorohydrin resin in an amount sufficient to cause gelation and form the gelled composition.

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