Ultrasonic dispersion takes liquid as medium, and high frequency ultrasonic vibration is added into liquid. Because ultrasound is a mechanical wave, which is not absorbed by molecules, it causes strong vibration of molecules in the process of propagation. Empty talk effect, that is, under the additional effects of high temperature, high pressure, micro jet and strong vibration, the average distance between molecules increases due to vibration, which eventually leads to molecular fragmentation. The pressure released in the instant of ultrasonic dispersion destroys the van der Waals force between particles, making particles more difficult to agglomerate.
Graphene oxide ultrasonic dispersion equipment is based on the cavitation principle of ultrasonic wave. Ultrasonic cavitation effect means that under the action of strong ultrasonic wave, a large number of bubbles will be produced in the liquid, small bubbles will grow and increase gradually with the ultrasonic vibration, and then suddenly burst and split, and the split bubbles will continue to grow and burst. When these small bubbles collapse rapidly, high temperature and high pressure are generated in the bubbles. Because the liquid around the bubbles rushes into the bubbles at a high speed, strong local shock wave is generated in the liquid near the bubbles, and local high temperature and high pressure are also formed, resulting in ultrasonic crushing and emulsification.