Silicone products in the organic silicon industry have occupied a variety of raw material types. They are distributed with different functions and functions. Silicone oil is one of the most widely used in many industries. Its function is mainly obtained by the softness and smoothness of the product. Provide good temperature resistance, defoaming, carrier, lubrication, toughness and other functions for different products. In addition to occupying important materials in silicone products, it also plays a role in other industries.

 

 

 

1, what is dimethyl silicone oil

 

 

 

201 methyl silicone oil is a novel organic silicon synthetic material. Appearance is colorless and transparent oily liquid. Its chemical composition is linear polymethylsiloxane with the structural formula:

 

 

 

Methyl silicone oil has good heat resistance due to the stability of the silicon-oxygen bond, the hydrophobicity of the methyl group, and the structural characteristics of the methylsiloxane aggregate. Flashing, non-volatile, small viscosity coefficient, large compressive force, small surface tension, chemical properties, good electrical (insulation) resistance, and resistance to water and moisture, non-toxic to living organisms (including humans). In order to make the methyl silicone oil form a thin film on the surface of other objects or make it into a rubber-like solid substance, it can be cured by heating at a high temperature (250-300 ° C) or adding an appropriate catalyst (generally a peroxide). The operating temperature range of methyl silicone oil is 50-180 ° C.

 

 

的 Methyl silicone oils with different viscosities have different physical and chemical properties and characteristic parameters. The product is divided by viscosity, and there are 201-10, 201-50, 201-100, 201-350, 201-500, 201-800, 201-1000 and other brands. Can also be made into other special viscosity specifications of silicone rubber products according to user requirements.

 

 

2, application range

 

 

 

1. Used as insulation medium for temperature, arc, corrosion and moisture resistance in the electrical and electronic industries.

 

 

 

2. Be an excellent heat carrier in the chemical, pharmaceutical, food and other industrial sectors.

 

 

 

3. Used as a high-efficiency defoamer in synthetic resin, oil processing, food manufacturing, fermentation, papermaking and other processes.

 

 

 

4. It is used to prevent vibration, damping, lubrication and force transmission in precision machinery and instruments.

 

 

 

5. Used as a high-temperature release agent in the molding and processing of plastic products and silicone rubber products, and in food production.

 

 

 

6. Used as a surface treatment agent on glass, ceramics, metals, leather, fabrics, threads and cement products to achieve the effects of enhancement, drainage corrosion resistance, mildew resistance, smoothness and so on.

 

 

 

7. Used as additives in paints, oils, cosmetics and other works to improve leveling, smoothness and other properties.

 

 

 

8. It has many uses in medicine, such as surgery, wound dressing, injection treatment, blood storage and oral medicine.

 

 

 

3.Technical indicators

 

 

4. Need attention

 

 

 

1. When methyl silicone oil is heated, it has a certain destructive effect when it comes into contact with acid or alkali. When methyl silicone oil is in contact with air above 200 ° C, it can undergo oxidation to precipitate corrosive formaldehyde and other low-boiling substances. Methyl silicone oil Although it does not ignite spontaneously at normal temperature, it reaches the burning point (450 ° C-500 ° C) or contact causes combustion, which makes the space filled with a large amount of cotton-like silica. .

 

 

 

2. If the methyl silicone oil is well packaged and stored, it will not deteriorate for a long time.