intensifying stabilization and dissolution capacity of ...

Intensifying Stabilization and Dissolution Capacity of ...

The current invention provides a method to form a stable blend of polyacrylamide water-in-oil emulsion and breaker surfactants such as silicon polyether copolymer and linear or branched alcohol...

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mechanism of polyacrylamide hydrogel instability on ...

Mechanism of Polyacrylamide Hydrogel Instability on ...

In this article, we conduct a series of experiments to demonstrate how the rupture of polymer and cross-linker chains leads to the hydrogel instability at high temperatures. Viscosity and energy-dispersive system measurements suggested that polyAM chains were disrupted by the oxidation reactions involving free radicals.

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role of the polymer in the emulsion stability of an amphoter ...

Role of the Polymer in the Emulsion Stability of an Amphoter ...

3 or surfactants further improved the stability of emulsions in the binary systems containing TSPAM. The stability of emulsions containing all three oil displacement agents was the strongest, with the half-life extended by 3.8−13.6 min. Amphoteric polyacrylamide

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optimal utilization of biochar, polyacrylamide, and straw ...

Optimal Utilization of Biochar, Polyacrylamide, and Straw ...

Simultaneous stabilization of particulate and bioavailable arsenic in soils from the realgar mining area by polyacrylamide, nano-SiO2, and ferrihydrite composite Science of the Total Environment ( IF 8.2Pub Date : 2024-04-03, DOI: 10.

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stabilization of soil using polyacrylamide (pam) polymer and ...

Stabilization of Soil Using Polyacrylamide (PAM) Polymer and ...

Polyacrylamide (PAM) is one such polymer which have many advantages including reduction in permeability, an increase in durability and its provision of strength characteristics. It is very cheap and easily available. In the progress of work, 0.02% ofpolymer is ...

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effects of polyacrylamide, biopolymer and biochar on the ... 簡

Effects of polyacrylamide, biopolymer and biochar on the ... 簡

We assessed the effects of BC, synthesized BP and anionic PAM on the decomposition of 14 C-labelled maize residues and on their stabilization in aggregate fractions in sandy and sandy loam soils. Polyacrylamide and BP were applied at 400 kg ha −1 and

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degradation and stabilization of polyacrylamide in polymer ...

Degradation and Stabilization of Polyacrylamide in Polymer ...

Laboratory data are used to show that commercial polyacrylamides hydrolyze to an equilibrium degree which depends on the temperature of hydrolysis, but is largely independent of the brine composition. In brines containing large amounts of sodium chloride, but less than 20 ppm total hardness, polyacrylamides appear to be indefinitely stable, at least at temperatures up to 204/sup 0/C (400/sup 0 ...

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(pdf) stabilization effect of anionic polyacrylamide on mari ...

(PDF) Stabilization Effect of Anionic Polyacrylamide on Mari ...

Expertise on every level to craft science & technology solutions in life science. Complete your research with this & more products available from Merck.

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chemical stability of polyacrylamide polymers - onepetro

Chemical Stability of Polyacrylamide Polymers - OnePetro

Summary. A comprehensive study of the chemical stability of polyacrylamide (PAA) polymers was conducted. The primary emphasis of the study was to determine the stability of Dow Pusher TM 500 PAA in Sundance brine a 115 deg. 17 (46 deg. C). Experiments were completed which show the effect of biocides, metals, ferrous and ferric iron salts, pH, surfactants, alcohols, antioxidants, sodium ...

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 ... 14c-labelled maize residues and on their stabilization ...

... 14C-labelled maize residues and on their stabilization ...

European Journal of Soil Science, August 2013, 64, 488–499 doi: 10.1111/ejss.12034 Effects of polyacrylamide, biopolymer and biochar on the decomposition of 14C-labelled maize residues and on their stabilization in soil aggregates Y. M. Awad a,b, E. Blagodatskayac,Y.S.Okb & Y. Kuzyakovd ...

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effects of polyacrylamide on soil erosion and nutrient ...

Effects of polyacrylamide on soil erosion and nutrient ...

Polymer flooding, using hydrolyzed polyacrylamide (HPAM), is crucial in enhanced oil recovery technology. The effect of the HPAM and NaCl concentration on the stability of the simulated emulsions was assessed through multiple light scattering experiments. The ...

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stabilization effect of anionic polyacrylamide on marine ...

Stabilization effect of Anionic Polyacrylamide on marine ...

1 Stabilization effect of Anionic Polyacrylamide on marine clay treated with lime Huayang Lei1, Jinfeng Lou2, Xin Li3, Mingjing Jiang4, Cike Tu5 1 Professor, Key Laboratory of Coast Civil ...

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Do polyacrylamide-type polymers have good thermal stability?

Polyacrylamide-type polymers with good thermal stability present good long-term stability at high temperature and high salinity conditions. Viscosity reduction of polyacrylamide-type polymers with good thermal stability was owing to polymer main chain degradation at harsh conditions.

How to predict long-term stability of polyacrylamide-type polymer under high temperature and salinity?

A facile model was developed by TGA method for long-term stability prediction of polyacrylamide-type polymer under high temperature and high salinity conditions. Polyacrylamide-type polymers with good thermal stability present good long-term stability at high temperature and high salinity conditions.

Can thermogravimetric analysis predict long-term stability of polyacrylamide-type polymers?

This study aims to apply thermogravimetric analysis technology to develop a facile way for long-term stability prediction of polyacrylamide-type polymers at high temperature and high salinity reservoir conditions, to maintain sufficient viscosity in chemical flooding.

What is thermal stability of water soluble polyacrylamide (PAM) and partially hydrolyzed polymers?

Thermal stability of water-soluble polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) polymers under various solution conditions have been studied utilizing Quantum Mechanics Density Functional Theory (DFT) computational modeling method.

How stable are acrylamide-amps copolymers?

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% NaHCO 3. At temperatures of 160°C and above, the polymers were more stable in brine with 2% NaCl + 1% NaHCO 3 than in the other brines.

Can TGA technique be used for long-term stability evaluation of polyacrylamide-type polymers?

There are few researches to explore the application of TGA technique on long-term stability evaluation of polyacrylamide-type polymers in aqueous solution.