Dimethyl silicone oil is a kind of hydrophobic silicone material. Because of its unique characteristics, it is widely used in our life. What are the characteristics of dimethyl silicone oil as defoamer?

1 as defoamer: due to the small surface tension of dimethylsilicone oil, which is insoluble in water, animal and vegetable oil and high boiling point mineral oil, it has good chemical stability and non-toxic. It has been widely used as defoamer in petroleum, chemical, medical, pharmaceutical, food processing, textile, printing and dyeing, papermaking and other industries. As long as 10-100ppm silicone oil is added, it has a good defoamer effect.

2 as release agent: due to the non stickiness between dimethylsilicone oil and rubber, plastics and metals, it is also used as a release agent for various rubber and Plastic products and in precision casting. It is not only convenient for demoulding, but also makes the surface clean, smooth and clear.

3 as lubricant: dimethyl silicone oil is suitable for rubber, plastic bearing and gear lubricant. It can also be used as a lubricant for rolling friction between steel and steel at high temperature, or for friction between steel and other metals. However, due to the poor lubrication performance of methyl silicone oil at room temperature, it is not recommended to be used as lubricant between metals at normal temperature.

Four As additive: dimethylsilicone oil can be used as an additive for many materials. For example, adding a small amount of silicone oil into the paint can prevent the paint from floating and wrinkle, and improve the brightness of the paint film. Adding a small amount of silicone oil to the ink can improve the printing quality. Adding a small amount of silicone oil to the polishing oil (such as automobile polish oil) can increase the brightness, protect the paint film and have excellent anti-corrosion Water effect.

Dimethylsilicone oil is widely used in our life, which brings a lot of convenience to our life. At present, there are hundreds of derivatives of dimethylsilicone oil, which is not the end point. In the future, the derivatives of dimethylsilicone oil will be more and more widely used.