Adsorption of Nonionic Polyacrylamide on Sodium Montmorillonite

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adsorption of nonionic polyacrylamide on sodium ...

Adsorption of nonionic polyacrylamide on sodium ...

During the adsorption process, PVP interacts with saturating sodium cations and possibly forces some of them onto the edges of the kaolinite; thus, the dielectric constant of saturated Kaolinite is reduced after PVP adsorptive process.

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comparison of adsorption ability of pam, apam and cpam on ...

Comparison of adsorption ability of PAM, APAM and CPAM on ...

Key takeaway: 'Adsorption of nonionic polyacrylamide on sodium montmorillonite leads to larger and larger loops in the bulk solution, with a maximum number of acrylamide units in contact with the solid at 23.5 g per 100 g of solid.'

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... adsorption of nonionic polyacrylamide on sodium montmorillonite ...

... Adsorption of nonionic polyacrylamide on sodium montmorillonite ...

The adsorption of nonionic polyacrylamide on sodium nontomorillonite is studied using different molecular weight macromolecules (mol wt = 4.40 × 104, 1.20 × 105, 3.70 × 105, 3 × 106), with the monomeric unit represented by the isobutyramide molecule.

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adsorption of sodium alginate onto sodium montmorillonite ...

Adsorption of sodium alginate onto sodium montmorillonite ...

Polyacrylamide (PAM) is a long-chain synthetic polymer that acts as a strengthening agent, binding clay particles together. The interaction between anionic PAM and clay particles is not well understood yet. This interaction was evaluated by rheological measurements for Na-montmorillonite suspensions. Three anionic PAMs of three molecular weights (MWs) (3.5 ( 10 3 , 2 x10 5 , and 8 ×10 6 g mol ...

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adsorption characteristics of polyacrylamide and sulfonate-c ...

Adsorption Characteristics of Polyacrylamide and Sulfonate-C ...

ADSORPTION CHARACTERISTICS ON SODIUM KAOLINITE 2125 Preparation or Sodium Kaolinite Our starting material was a well-crystaIlized sample of Georgia kaolinite (from the University of Missouri repository), having a surface area of 9.82 m2/g as de

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adsorption of different ionic types of polyacrylamide on ... ...

Adsorption of Different Ionic Types of Polyacrylamide on ... ...

The adsorption of nonionic polyacrylamide on sodium nontomorillonite is studied using different molecular weight macromolecules (mol wt = 4.40 × 10 4, 1.20 × 10 5, 3.70 × 10 5, 3 × 10 6), with the monomeric unit represented by the isobutyramide molecule.

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adsorption of sodium alginate onto sodium montmorillonite - ...

Adsorption of sodium alginate onto sodium montmorillonite - ...

AdsorptionofNonionicPolyacrylamideonSodiumMontmorillonite:RelationbetweenAdsorption~"PotentialTurbidityEnthalpyofAdsorptionDataandlaC-NMRinAqueousSolutionJ.Y.BOTTEROM ...

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adsorption of polyacrylamide on smectite, illite, and ...

Adsorption of Polyacrylamide on Smectite, Illite, and ...

The adsorption of nonionic polyacrylamide on sodium nontomorillonite is studied using different molecular weight macromolecules (mol wt = 4.40 × 10 4, 1.20 × 10 5, 3.70 × 10 5, 3 × 10 6), with the monomeric unit represented by the isobutyramide molecule.

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adsorption of different ionic types of polyacrylamide on ... ...

Adsorption of Different Ionic Types of Polyacrylamide on ... ...

2.1.2. QCM-D Results of Polymers Adsorption on the Montmorillonite Pre-Adsorbed on the Alumina Sensor To study the adsorption of different ionic types of polyacrylamides on montmorillonite, the montmorillonite particles were first loaded onto an alumina

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How does pH affect adsorption of montmorillonite alumina?

The results of the QCM-D analysis showed that a decrease in pH led to an increase in the adsorption of montmorillonite on the alumina surface. The ranking of adsorption mass on alumina and pre-adsorbed montmorillonite alumina surfaces was found to be cationic polyacrylamide (CPAM) > polyacrylamide (NPAM) > anionic polyacrylamide (APAM).

What polymers are found in montmorillonite?

Materials Montmorillonite particles were obtained from Source Clays Repository (Sample SWy-2, Na-rich montmorillonite, The Clay Minerals Society, Purdue University). The polymers investigated were nonionic polyacrylamide (NPAM), anionic polyacrylamide (APAM) and cationic polyacrylamide (CPAM).

Does ionicity affect adsorption of polyacrylamides?

The study also found that CPAM had the strongest bridging effect on montmorillonite nanoparticles, followed by NPAM, while APAM had a negligible bridging effect. The MD simulations showed that ionicity had a significant influence on the adsorption of polyacrylamides.

What are the different types of polyacrylamide adsorption polarities?

Specifically, it can be divided into non-ionic polyacrylamide (NPAM), anionic polyacrylamide (APAM), and cationic polyacrylamide (CPAM). C 3 H 7 ON, C 3 H 6 O 2, and C 5 H 9 O 2 N + are the basic structural units of these PAM, resulting in different adsorption polarities [ 12, 13 ].

Does ionicity and ion type affect adsorption on montmorillonite surface?

Therefore, in this study, anionic, cationic, non-PAM molecular models with different ionicity were constructed to conduct MD simulation of adsorption on the montmorillonite surface, and the effects of ionicity and ion type on the deposition of polymers on the surface of montmorillonite were studied.

Do different ion types of Pam interact with montmorillonite nanocrystals?

In this study, the interaction between PAM of different ion types and montmorillonite nanocrystals was studied in situ by QCM-D to investigate the adsorption strength and bridging effects of different types of PAM on montmorillonite nanoparticles.

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