New Pickering Emulsion Formulation Improves Emulsions Stability

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

CBGCONF06_035

تاریخ نمایه سازی: 28 بهمن 1398

Abstract:

An emulsion is a colloidal system in which a liquid has been dispersed in another liquid. Emulsions are thermodynamically unstable and surfactants are usually used in order to contribute to form a kinetically stable system. Nevertheless, surfactant-stabilized emulsions or classic emulsions demonstrate short periods of longevity. Pickering emulsions or solid-stabilized emulsions are colloidal emulsions that are stabilized by solid particles instead of organic surfactants. Dual wettability of solid particles is critical factor in order to enhance stability of emulsion, which can be achieved using low concentration of surfactant. In this research different surfactants (Triton X-100, C-TAB and D-TAB) and four nanoparticles (SiO2, Fe2O3, Fe3O4 and ZnO) are considered to evaluate stability of Pickering emulsion. Emulsions stability has been analyzed Using water separation and droplet size over the time. The results show, according to the centrifuge test, contact angle and rheological behavior, the stability of emulsion has been significantly improved using nano silica and low concentrations of D-Tab.

Authors

Behrooz Ahmadi

Department of Petroleum Engineering, Petroleum University of Technology (PUT), Ahwaz, Iran

Mehdi Bahari Moghaddam

Department of Petroleum Engineering, Petroleum University of Technology (PUT), Ahwaz, Iran

Khalil Shahbazi

Department of Petroleum Engineering, Petroleum University of Technology (PUT), Ahwaz, Iran

Alireza Nasiri

Department of Drilling Engineering, Research Institute of Petroleum Industry, Tehran, Iran