Silicone emulsion defoamer is a kind of special chemical additive widely used in many industrial fields, which is famous for its excellent defoamer performance. The following is a detailed introduction to silicone emulsion defoamer:
One. Definition and composition
Organic Silicon Emulsion Defoamer, the English name Organic Silicon Emulsion Defoamer, is mainly composed of organic silicon compounds, including polydimethylsiloxane (silicone oil), silicone and silicone resin and other key ingredients. These ingredients are emulsified and combined with carriers, emulsifiers, stabilizers and other substances to form efficient defoamer. Its appearance is usually white viscous emulsion, with low surface tension and excellent high temperature resistance, chemical stability.
Two. Characteristics and advantages
Strong defoaming: silicone emulsion defoaming agent can quickly unfold on the surface of the liquid, destroy the stability of the bubble, make the bubble burst quickly, and achieve the defoaming effect. At the same time, it can significantly prevent the formation of new foams and ensure the smooth running of the production process.
High temperature resistance: the defoamer has high temperature resistance, long-term can withstand 150℃, short-term can withstand more than 300℃ temperature, suitable for industrial production in high temperature environment.
Chemical stability: Thanks to the stability of Si-O bond, silicone emulsion defoamer is not easy to chemically react with other substances, and can remain stable even in acid, alkali, salt and other environments.
Wide applicability: Due to its unique chemical structure, silicone emulsion defoamer is suitable for both water and oil systems, and has a wide range of applications.
Three. Application fields
Silicone emulsion defoamer plays an important role in several industrial sectors, including but not limited to:
Chemical industry: Used in the production process of polymer synthesis, coatings, paints, adhesives and other chemical products to effectively control the generation of foam.
Food industry: In the process of food processing, fermentation, cooking, stirring and other links to prevent the impact of foam on food quality.
Pharmaceutical industry: In the process of pharmaceutical fermentation, filtration, drying and other links to ensure the purity and stability of drugs.
Textile industry: In the textile processing of spinning, dyeing, finishing and other processes, control foam generation, improve product quality.
Petrochemical: In the distillation, extraction and other links, effectively control the generation of foam, improve production efficiency.
Four. Methods of use
When using silicone emulsion defoamer, you need to choose the right product according to the specific application scenario and requirements, and follow the correct use method and precautions. Usually, the defoamer needs to be evenly dispersed in the liquid to be treated, and sufficiently stirred and mixed to ensure its effect. At the same time, it is also necessary to avoid mixing with other chemicals, and properly stored to avoid direct sunlight and high temperature environment.
In summary, silicone emulsion defoamer has become an indispensable auxiliary agent in industrial production with its excellent performance and wide application fields.
