Bubbles can be seen everywhere in our lives. However, when a large number of bubbles gather and continuously spread in a liquid, they will form foam. The presence of foam not only affects the normal progress of work, but also causes certain pollution to the environment. Therefore, eliminating foam is a very necessary task. 

The core mechanism of organic silicon defoaming agents lies in the silicon-oxygen groups within their molecular structure. When organic silicon defoaming agents are introduced into a system containing foam, these silicon-oxygen groups can rapidly undergo chemical reactions such as addition and condensation with the silicon hydroxyl groups in the foam, making the foam structure unstable and effectively eliminating the foam. Specifically, the defoaming principle can be summarized as follows: 

1. Reduce surface tension: The surfactant molecules in the organic silicone defoamer adsorb onto the surface of the bubbles in the liquid, significantly reducing the surface tension of the liquid and making it easier for the bubbles to be released from the liquid. 

2. Formation of molecular film: The molecules of the organic silicone defoamer can form a very thin and highly adsorptive molecular film on the surface of the liquid. When bubbles come into contact with this molecular film, they will rupture and dissipate under the action of surface tension. 

3. Inhibiting gas diffusion and foam formation: The hydrophobic groups in the organic silicon defoaming agent will adsorb onto the surface of the bubbles, forming a stable film that hinders the further dissolution of gas and the formation of new bubbles, thereby achieving dual inhibition of bubble generation.