Interfacial dilational properties of betaines and sulfonate mixtures: Effects of alkyl chain length

Zhang, Yi; Cai, Haibing; Hu, Song-Shuang; Li, Jianguo; Gong, Qi; Ma, Weibin; Liu, Ziyu; Zhang, Lei; Zhang, Lu; Zhao, Suoqi

doi:10.1080/01932691.2018.1561305

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…Interfacial rheology is an effective method to study the properties of the interfacial film through the regular perturbations of the interface. − In particular, interfacial dilational rheology provides information on the viscoelastic properties of the interfacial adsorption film, the arrangement of the molecules at the interface, and the strength of the interfacial film by periodically expanding and compressing the interfacial area. Up to now, with the help of the interfacial dilational rheology method, the oil–water interfacial characteristics of multiple different types of surfactants and their mixtures, such as anionic, cationic, zwitterionic, and gemini surfactants, have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Dilational Rheological Properties of Surfactants at the Crude Oil–Water Interface: The Effect of Branch-Preformed Particle Gels and Polymers

et al. 2022

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The interfacial properties of a heterogeneous composite flooding system containing a surfactant fatty alcohol polyoxyethylene carboxylate (C 12 EO 3 C), branched-preformed particle gel (B-PPG), and polymer partly hydrolyzed polyacrylamide (HPAM) at the crude oil–water interface were investigated by a dilational rheology method. The results demonstrated that the C 12 EO 3 C molecules can form an elastic interfacial film with certain strength at the crude oil–water interface. The addition of HPAM to the C 12 EO 3 C solution has a detrimental effect on the interfacial film formed by C 12 EO 3 C molecules, leading to a decrease in the dilational modulus and an increase in the phase angle. Moreover, the addition of B-PPG to the C 12 EO 3 C solution also disrupts the stability and strength of the interfacial film of C 12 EO 3 C. In particular, linear HPAM with a lower steric hindrance is more likely to insert into the interfacial film of C 12 EO 3 C; thus, HPAM possesses a stronger destruction ability for the interfacial film of C 12 EO 3 C than B-PPG. When HPAM is compounded with B-PPG, a superimposed effect exists to cause more severe disruption for the interfacial film. The heterogeneous composite flooding system not only enhances oil recovery by increasing the viscosity of the bulk phase but also weakens the interfacial film to facilitate the post-treatment of the recovered crude oil. Thus, the heterogeneous composite flooding system exhibits promising prospects in practical application.

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Section: Introductionmentioning

confidence: 99%

Dilational Rheological Properties of Surfactants at the Crude Oil–Water Interface: The Effect of Branch-Preformed Particle Gels and Polymers

et al. 2022

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Effect of molecular structure on synergism in mixed zwitterionic/anionic surfactant system: An experimental and simulation study

Sun

Ding

et al. 2021

Journal of Molecular Liquids

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Impact of the Hydrophobic Phase on the Interfacial Dilational Rheology of Alkoxy Carboxylate/Cetyltrimethyl Ammonium Chloride Mixtures

He,

Su,

Liu

et al. 2024

Langmuir

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Despite extensive investigations on the interfacial activities of mixed anionic and cationic surfactants (S a/c ), the influence of the hydrophobic phase on their interfacial assembly and dilational rheology remains unaddressed. In this study, the interfacial dilational rheology of alkoxy carboxylate (anionic)/ cetyltrimethylammonium chloride (cationic) surfactant mixtures was studied at various interfaces. The dilational modulus of S a/c increases linearly with interfacial pressure at the interfaces of air, nhexane/n-octane/n-hexadecane, and toluene. The limit elasticity (ε 0 ) is similar at air and alkane interfaces but significantly decreases at the toluene interface. To explain these phenomena, all-atom molecular simulation was carried out to investigate the microscopic features of surfactants at the interface. The findings emphasize the crucial role of anionic/cationic surfactant bound pairs in regulating interfacial rheology. S a/c tend to form large aggregates at the air/water surface. When mixed with alkanes like octane, most S a/c remain as ion pairs. However, when toluene is employed, the coordination number between anionic and cationic surfactants sharply decreases due to π−π interactions between the toluene molecules and the phenyl groups in the anionic surfactant. This leads to a much lower interfacial modulus because interactions between oil molecules and surfactants cannot compensate for weakened interactions among anionic/cationic surfactants. These results suggest that S a/c in this study tolerate alkanes but are not resistant to aromatics, which helps explain why S a/c demonstrate excellent performance for the chemical enhanced oil recovery of a high-wax reservoir and further provides fundamental knowledge of their potential applications, such as gas well deliquification using foamers in the presence of condensate oil, textiles, etc.

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Interfacial dilational properties of betaines and sulfonate mixtures: Effects of alkyl chain length

Cited by 5 publications

References 53 publications

Dilational Rheological Properties of Surfactants at the Crude Oil–Water Interface: The Effect of Branch-Preformed Particle Gels and Polymers

Dilational Rheological Properties of Surfactants at the Crude Oil–Water Interface: The Effect of Branch-Preformed Particle Gels and Polymers

Effect of molecular structure on synergism in mixed zwitterionic/anionic surfactant system: An experimental and simulation study

Impact of the Hydrophobic Phase on the Interfacial Dilational Rheology of Alkoxy Carboxylate/Cetyltrimethyl Ammonium Chloride Mixtures

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