A-Monomolecular adsorption
• In emulsion, the surface area is high to maintain the dispersion of the droplets. Thus, based on the above equation surface free energy becomes high consequently. The only way to keep it low is to reduce the interfacial tension.
• Surface active agent (SAA) is molecule which have two parts, one is hydrophilic and the other is hydrophobic. Upon the addition of SAA, they tend to form monolayer film at the oil/water interface.