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Materials 2017, 10(12), 1403; doi:10.3390/ma10121403

Preparation and Investigation of Foaming Amphiphilic Fluorinated Nanoparticles for Enhanced Oil Recovery

Key Laboratory for EOR Technology (Ministry of Education), Northeast Petroleum University, Xuefu Road 99, Daqing 163318, China
Center for High Pressure Science and Technology Advanced Research, Cailun Road 1690, Shanghai 201203, China
State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, Qianjin Road 2699, Changchun 130012, China
Author to whom correspondence should be addressed.
Received: 10 November 2017 / Revised: 4 December 2017 / Accepted: 6 December 2017 / Published: 8 December 2017
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Amphiphilic nanoparticles have attracted increasing interest as Pickering emulsifiers owing to the combined advantages of both traditional surfactants and homogeneous particles. Here, foaming amphiphilic fluorinated nanoparticles were prepared for enhanced oil recovery by the toposelective surface modification method. The structure and properties of amphiphilic nanoparticles were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, a laser diffraction method, fluorescence microscopy, a pendant drop tensiometer, and foamscan. It was found that the amphiphilic fluorinated nanoparticles exhibited significant interfacial activity at the air–water interface and generated stabilized aqueous foams against coalescence and drainage even in the absence of surfactants. When the particle concentration reached 0.6 wt %, the adsorption of the amphiphilic nanoparticles at the interface was saturated and the equilibrium surface tension dropped to around 32.7 mN/m. When the particle concentration reached 0.4 wt %, the Gibbs stability criterion was fulfilled. The amphiphilic nanoparticles foam system has a better plugging capacity and enhanced oil recovery capacity. The results obtained provide fundamental insights into the understanding of the self-assembly behavior and foam properties of amphiphilic fluorinated nanoparticles and further demonstrate the future potential of the amphiphilic nanoparticles used as colloid surfactants for enhanced oil recovery applications. View Full-Text
Keywords: amphiphilic nanoparticles; anisotropy; colloid surfactants; enhanced oil recovery amphiphilic nanoparticles; anisotropy; colloid surfactants; enhanced oil recovery

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, K.; Wang, G.; Lu, C.; Pei, C.; Wang, Y. Preparation and Investigation of Foaming Amphiphilic Fluorinated Nanoparticles for Enhanced Oil Recovery. Materials 2017, 10, 1403.

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