Main components of industrial defoamers

The main components of industrial defoamers include the following categories:

1.Silicone Defoamers: The main components include silicone oil, silicone paste, and silicone ether copolymers, etc. Silicone oil is a liquid with low surface tension, which can quickly spread on the surface of the foam, reduce the surface tension of the foam, and make the foam burst. Silicone oil has good chemical stability, heat resistance, and cold resistance, and is suitable for various different environmental conditions. Silicone paste is composed of silicone oil and fillers such as silica, and has high defoaming efficiency and durability.

2.Polyether Defoamers: The main components are polyether compounds, such as polyoxyethylene polyoxypropylene glycerol ether, etc. These compounds have good water solubility and surface activity, and can quickly diffuse in water to reduce the surface tension of the foam. Polyether defoamers are environmentally friendly, non-toxic, and odorless.

3.Mineral Oil Defoamers: They are mainly composed of mineral oil and some additives. Mineral oil is a liquid refined from petroleum, which has good defoaming performance and lubricity. Additives such as emulsifiers, dispersants, and stabilizers can improve the performance and stability of mineral oil defoamers.

4.Fatty Acid Salts: Such as iodized salts, emulsified lipids, etc., inhibit the formation and stabilization of foam by changing the surface activity of substances.

5.Surfactants: Including non-ionic, cationic, anionic types, etc. They can reduce the surface tension of the liquid, thereby destroying the stability of the bubbles.

6.Other Components: Such as oxidants, metal ions, antioxidants, bactericides, etc., which are adjusted according to different application scenarios and requirements.

The selection and use of these components depend on the specific industrial application requirements and environmental conditions. For example, silicone defoamers are suitable for high-temperature, strong acid, and strong alkali environments, while polyether defoamers are suitable for aqueous systems and are environmentally friendly.