Silicone defoamer is an important industrial additive, and its main components are silicone oil and silicone components, which are made through specific polymerization reactions and modification processes. The following is a detailed introduction to silicone defoamers:

1. Appearance and properties
Silicone defoamers usually appear as white viscous emulsions, with a variety of special properties such as poor solubility, low surface tension, good thermal stability, high chemical stability and environmental protection. These properties make it more advantageous in industrial production, such as being able to be used in water-based and oily systems, with strong anti-foaming ability and significant foam breaking effect; being able to quickly eliminate foam and inhibit foam generation; being able to withstand high temperatures for a long time, and having a good defoaming effect in a neutral system at a temperature of up to 150°C, and being able to withstand high temperatures above 300°C in a short period of time; being physiologically inert, it can be used in defoaming industries such as drug production, food fermentation and personal protective products, and has no adverse side effects on the human body; being added in small amounts, it can effectively reduce costs.

2. Principle of action
The core principle of silicone defoamers lies in the siloxy groups in their molecular structure. When these defoamers are introduced into a system containing foam, the siloxy groups can quickly react with the silanol groups in the foam through addition and condensation, making the foam structure unstable, thereby effectively eliminating the foam. At the same time, the defoamer molecules can also form a very thin molecular film with strong adsorption capacity on the surface of the liquid, which prevents the gas from further dissolving and aggregating into new bubbles.

3. Application fields
The application fields of silicone defoamers are very wide, including but not limited to chemical, papermaking, coatings, food, textile, pharmaceutical and other industrial sectors. In these fields, silicone defoamers, as an indispensable auxiliary agent in the production process, can significantly improve the separation, gasification, drainage and other effects of the process, and ensure the capacity of various material containers and processing containers.

In summary, silicone defoamers play a vital role in modern industrial production with their unique properties and wide application fields.

More details please click here.