Silicone defoamer is a kind of emulsion defoamer made by special process based on dimethyl silicone oil and white carbon black as active ingredients, 

with various emulsifiers and on the premise of dispersant, chelating agent and stabilizer. According to its different components, 

it can be divided into this type, 0/W type,W/0 type emulsion, etc. Its active ingredient has the characteristics of low electronegativity, 

strong hydrophobicity, and is not easy to form hydrogen bond, so it has a very low surface tension, and can play a defoaming role by reducing the surface tension of the foam, 

destroying the double electric layer and bridge.

This kind of product has the characteristics of low volatility, strong chemical stability,

 fast defoaming speed, a wide range of use, whether it is an oily dispersion system or a water-based dispersion system has a strong defoaming ability.