SA3) was used for the proper visualization and recording of the moment of drop coalescence. The methodology of this work was based on measurements of the coalescence time of an oil droplet in an aqueous dispersion of nanoparticles, when it is forced against an oil-water interface. One method to study the stability of Pickering emulsions is to analyze theĬoalescence experiment of two oil-water interfaces that are forced against each other. These solid particles adsorb at the oil-water interface, creating a thin layer between the phases, and thus avoiding the coalescence of the droplets. A particle s effectiveness on stabilizing an emulsion is related to its properties, as well as its interaction with the oil and water phases of the emulsion. As compared to surfactants, which are used in classic emulsions, the use of solid particles as emulsifying agents (Pickering emulsions) has presented great benefits, including lower costs and better emulsion stability.
The data used in the descriptions of the documents are in conformity with the systems of the administration of industries, such as oil and gas, cosmetics, and pharmaceutical, seek to stabilize emulsions more effectively and at a lower cost. All data contained in the documents are the sole responsibility of the authors. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. STUDY OF COALESCENCE OF OIL DROPLETS IN WATER USING NANOPARTICLES
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