Surfactants are substances that contain hydrophilic and hydrophobic bases.
Surfactants refer to substances that have a fixed hydrophilic and oil-friendly group that can be orientated on the surface of the solution and can significantly reduce surface tension.
An emulsifier is a surfactant
and can also be used as a penetrant. The surfactant has the function of emulsification, but also other functions.
The main functions of the surfactant are: stain removal, emulsification, solution, suspension, bubble elimination, sterilization and so on. There are many kinds of surfactants. According to the use classification, there are emulsifiers, antistatic agents and detergents, stabilizers, defoaming agents, dispersants, etc. These uses can be distinguished according to the size of the HLB value. Surfactants have a large range and contain emulsifiers. The HLB value of the surfactant is between 0-40, while the emulsifier is probably between 2-15, 2-8 is oil-coated water emulsifier, and 9-15 is water-coated oil emulsifier.