Mechanism Of Emulsifier
Oct 04, 2020
The emulsifier can form a stable emulsion by reducing the interfacial free energy and forming a firm emulsion. When the free energy of the interface is reduced, the droplet particles form a sphere to keep the minimum surface area.
The formation of emulsion by two different liquids is a process of forming a large number of new interfaces between two liquids. The smaller the droplet is, the larger the new interface is, and the greater the surface free energy of the droplet is.
The surface tension or surface free energy can be effectively reduced when emulsifier is adsorbed on the surface of the droplet. The emulsifier is adsorbed around the droplet and forms a film around the droplet, so as to reduce the interfacial tension between oil and water and effectively prevent droplet aggregation. The more regular the emulsifier arranged on the surface of the droplet, the stronger the emulsion membrane and the more stable the emulsion.
