Application of dimethyl silicone oil defoamer in industrial foams
Dimethyl silicone oil plays a vital role in numerous fields due to its colorless transparency, wide viscosity range, coefficient of thermal expansion, and excellent shear resistance. It is used not only in the electromechanical industry and medical and health fields, but also plays a key role in products such as sewing thread smoothers, defoamers, release agents, lubricants, and additives.
Dimethyl Silicone Oil Defoamer Characteristics
Dimethyl silicone oil defoamer is a finely synthesized product composed of fatty alcohols, amides, polyethers, and hydrocarbons. Its advantages lie in its ability to rapidly penetrate the liquid and diffuse quickly, effectively eliminating stubborn and fine foams. It maintains stable defoaming effects even in strongly alkaline or high-temperature environments. Compared to silicone defoamers, dimethyl silicone oil defoamer does not leave silicone spots on the surface of equipment or products after use, thus avoiding any impact on appearance.
Dimethyl silicone oil defoamer combines chemical stability, physiological inertness, and excellent high and low temperature performance. It has good water solubility and can disperse rapidly in aqueous environments; its pH value is between 6.5 and 7.8, ensuring defoaming stability under extreme conditions; the addition amount is low, with a recommended dosage of 0.001-0.003%, facilitating direct addition; its viscosity and density are suitable, with a wide viscosity range (0.65-1,000,000 mm²/s), allowing for product adjustment according to specific needs.
Advantages of Dimethyl Silicone Oil Defoamer
Dimethyl silicone oil defoamer is a colorless or light yellow liquid with the following characteristics:
Heat and cold resistance: Maintains performance at extreme temperatures.
Viscosity stability: Viscosity changes little with temperature, ensuring application effectiveness at different temperatures.
Water resistance: Does not easily mix with water, contributing to defoaming effectiveness.
Low surface tension: Facilitates rapid diffusion of the defoamer to the foam surface.
Thermal conductivity: Contributes to defoaming effectiveness in high-temperature environments.
Light Transmittance: 100% light transmittance, does not affect product transparency.
High Content: Low addition amount helps reduce production costs.
Application Areas of Dimethyl Silicone Oil Defoamer
Dimethyl silicone oil defoamer is widely used in many industries, including but not limited to:
Inks and Coatings:Controls foam during production and application.
PU Slurries: Prevents foam generation during production.
Lubricating Oils: Eliminates foam during the production and use of lubricating oils.
Petroleum Processing: Controls foam during oil refining.
Cleaning Processing:Prevents foam from affecting cleaning effectiveness during industrial cleaning.
Dyeing and Printing: Eliminating foam during the dyeing and printing process to prevent uneven dyeing.
Textile Industry: Controlling foam during the textile process to improve product quality.
