To know if an emulsifier can produce nanomaterials, it is necessary to analyze it from its working principle. The high tangential speed and high-frequency mechanical effect generated by the high-speed rotation of the rotor of the emulsifier make the material subject to strong mechanical and hydraulic shear, centrifugal extrusion and liquid layer friction in the narrow gap between the stator and the rotor. A combination of impact tearing and turbulence to grind, pulverize, disperse, and homogenize the material to form a suspension (solid/liquid), an emulsion (liquid/liquid), and a foam (gas/liquid). For solid-liquid materials, the emulsifier can play a certain grinding and pulverizing effect. If it is a soluble solid, then after the action of the emulsifier, the particles are relatively small, generally up to the micron level, such as 0.5 micron or less, but It is unlikely to reach the nanometer level. Timely liquid phase emulsification, liquid particles are also not up to the nanometer level. The preparation methods of nano materials include: physical methods, the main methods are evaporation condensation method, physical pulverization method, mechanical alloy method, etc.; chemical methods, such as chemical vapor phase method, precipitation method, hydrothermal synthesis method, sol-gel method, evaporation Method, electrolysis method, microemulsion method, template method, radiation synthesis method, explosion method, etc. Judging from the current state of the art, the pulverization process is complicated, and the obtained nano-materials are less in composition and costly. Therefore, the possibility of using nano-materials with an emulsifier is almost non-existent, but it is only the propaganda of individual manufacturers to absorb the eyeballs.