WantuoBitumen emulsifier is a type of surfactant, which is used to produce emulsified asphalt. Its chemical structure consists of a lipophilic group and a hydrophilic group. It can adsorb on the interface between asphalt particles and water, thus significantly reducing the free energy of the interface between asphalt and water. It is a surfactant that makes it a uniform and stable emulsion: it can make the surface of water when added in a small amount. the tension is greatly reduced, which can significantly change the interface properties and state of the system, thereby producing a series of effects such as wetting, emulsifying, foaming, washing, dispersing, antistatic, lubrication, and solubilization, so as to meet the requirements of practical application.