Effect of amphiphilic nanoparticles and non-ionic surfactants on emulsion stability

Yang Wang; Zijing Cui; Youlong Feng; Long Li; Yujie Zhang; Le Guo

doi:10.1515/tsd-2024-2617

Article

Effect of amphiphilic nanoparticles and non-ionic surfactants on emulsion stability

Yang Wang
Yang Wang is a professor in the Department of Petroleum Engineering at Xi’an Shiyou University. His research interests focus on enhanced recovery and oil recovery chemistry.
, Zijing Cui
Zijing Cui is a postgraduate student at Xi’an Shiyou University. She is involved in the study of surfactants and enhanced oil and gas recovery.
, Youlong Feng
Youlong Feng is a postgraduate student at Xi’an Shiyou University. He is involved in the study of enhanced oil and gas recovery.
, Long Li
Long Li is a postgraduate student at Xi’an Shiyou University. He is involved in the study of oil and gas field chemistry.
, Yujie Zhang and Le Guo

Published/Copyright: December 6, 2024

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From the journal Tenside Surfactants Detergents Volume 62 Issue 1

Abstract

To investigate the effect of amphiphilic nanoparticles and nonionic surfactants on the stability of emulsions, SiO₂ nanoparticles were first locally surface modified with organosiloxanes of different carbon chain lengths to prepare amphiphilic nanoparticles with different hydrophobic properties, and then the effects of surfactant type and concentration, interfacial tension and its composite system with the amphiphilic nanoparticles on the stability of emulsions was investigated. The experimental results demonstrate, the OP-50 exhibits the most effective emulsification properties at a concentration of 0.1 %. However, the emulsion stability is significantly compromised. The emulsification effect of OP-50 with amphiphilic nanoparticles at a concentration of 0.1 % remained unaltered, while the emulsion stability was markedly enhanced compared to that of a single system. The modulus of expansion of OP-50 was 11.8 mN m⁻¹, while that of OP-50 compounded with C8-10:1 was 120 mN m⁻¹. The incorporation of modified nanoparticles with varying lengths of carbon chains was shown to effectively enhance the modulus of expansion of the oil–water interfacial interface. The results of this study are informative for the application of oil repellents in the mechanism of enhanced recovery.

Keywords: amphiphilic nanoparticles; emulsion stability; oil–water interface viscoelasticity; enhanced oil recovery (EOR)

Corresponding author: Yang Wang, School of Xi’an Shiyou University, Xi’an 710000, Shanxi, China, E-mail: ywang@xsyu.edu.cn

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 51934005

Award Identifier / Grant number: 52004218

Award Identifier / Grant number: 52174028

Award Identifier / Grant number: 52174031

Award Identifier / Grant number: 52374040

Funding source: Key Research and Development Projects of Shaanxi Province

Award Identifier / Grant number: 2023-YBGY-155

Award Identifier / Grant number: 2024GX-YBXM-499

About the authors

Yang Wang

Yang Wang is a professor in the Department of Petroleum Engineering at Xi’an Shiyou University. His research interests focus on enhanced recovery and oil recovery chemistry.

Zijing Cui

Zijing Cui is a postgraduate student at Xi’an Shiyou University. She is involved in the study of surfactants and enhanced oil and gas recovery.

Youlong Feng

Youlong Feng is a postgraduate student at Xi’an Shiyou University. He is involved in the study of enhanced oil and gas recovery.

Long Li

Long Li is a postgraduate student at Xi’an Shiyou University. He is involved in the study of oil and gas field chemistry.

Research ethics: Not applicable.
Informed consent: Not applicable.
Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
Use of Large Language Models, AI and Machine Learning Tools: None declared.
Conflict of interest: The author states no conflict of interest.
Research funding: National Natural Science Foundation of China (52374040, 52004218, 51934005, 52174031, 52174028) and Shaanxi Provincial Key R and D Programme (2024GX-YBXM-499, 2023-YBGY-155).
Data availability: The raw data can be obtained on request from the corresponding author.

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Received: 2024-07-22

Accepted: 2024-11-06

Published Online: 2024-12-06

Published in Print: 2025-01-29

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Articles in the same Issue

https://doi.org/10.1515/tsd-2024-2617

Keywords for this article

amphiphilic nanoparticles; emulsion stability; oil–water interface viscoelasticity; enhanced oil recovery (EOR)