Briefly describe the properties that defoamers should possess

In fact, defoamers are widely used in our daily life, not only in coatings and food, but also in many industries in our daily life. Because of the harm of foam, we should know something about it. Therefore, general defoamers mainly include oil type, solution type, lotion type, solid powder type and composite type.

These defoamers all possess the following properties: 

1. Strong defoaming ability and low dosage;

2. Joining does not affect the basic properties of the system;

3. Low surface tension;

4. Good surface balance;

5. Good diffusion and permeability;

6. Good heat, acid, and alkali resistance;

7. Good gas solubility and permeability;

8. Chemical stability and strong oxidation resistance;

9. Low solubility in foaming solution;

10. High physiological safety.