What are the ingredients and functions of silicone defoamer?
Defoamer, as a kind of defoaming additives, is used in major foam need to defoam the scene. Today we will mainly talk about one of the types, silicone defoamer.
Silicone defoamer whose main component is composed of polyether modified silicone oil and high and low viscosity methyl silicone oil and ultra-fine silica silicone resin. According to the requirements of the system, there are slight differences in the composition ratio and some additives added to the manufacturing process.
Therefore, according to its shape, it can be divided into three types: body type, solution type and emulsion type, each of which is applied in a different place. The following specific introduction:
1, The body type of silicone defoamer refers to the composition is more by the active ingredient content of low oil and oil paste defoamer composition, mainly in the non-aqueous system of defoaming and anti-foaming.
2, Solution-type silicone defoamer refers to the composition is more of all kinds of organic solvents, suitable for oil-based system defoaming.
3, Emulsion-type silicone defoamer refers to the original basis, add emulsifier and water for the ratio, after mechanical mixing made, mainly for water-based defoamer.
Silicone defoamer has good foam breaking, foam inhibition, defoaming ability, especially for some viscous foam very good defoaming and foam inhibition effect. And silicone defoamer high temperature resistance, physical and chemical stability.
Silicone defoamer also has disadvantages, that is not suitable for application in reverse osmosis membrane foam problem solving, will lead to blockage of membrane pores. In addition, many common foam problems can be solved with silicone defoamer.
