Degassing and defoaming of liquids is an interesting application of ultrasonic devices. In this case the ultrasound removes small suspended gas-bubbles from the liquid and reduces the level of dissolved gas below the natural equilibrium level.
Ultrasonic Removal of Air Bubbles from Epoxy Resin
When epoxy resin is mixed, air bubbles are inadvertently introduced and must be removed. Ultrasonic degassing technique can be very useful in this case. Ultrasonic removal of air bubbles from premixed epoxy resin is illustrated in this video. The experiment was conducted with a 2 kW ultrasonic reactor system produced by Industrial Sonomechanics, LLC
