Silicone oil is a synthetic organic polymer based on polydimethylsiloxane (PDMS), with various types. The following are some common types of silicone oil:
Ordinary silicone oil: also known as linear silicone oil, is the most basic type of silicone oil. They are composed of linear chain polydimethylsiloxane, and have good thermal stability and chemical stability. Ordinary silicone oil is commonly used as a lubricant, maintenance agent, isolation agent, etc.

Methyl modified silicone oil: On the basis of ordinary silicone oil, modification is carried out by introducing methyl groups (CH3). Methyl modified silicone oil has better lubrication and high-temperature resistance, and is widely used in fields such as cosmetics, personal care products, lubricants, and electronic products.

Lotion silicone oil: This silicone oil is obtained by emulsifying silicone oil into lotion, and is usually mixed with water. Lotion silicone oil has good dispersibility and stability, and is often used in cosmetics, lotion, skin creams and other products to provide a sense of smoothness and moisturizing effect.

Cyclic silicone oil: the molecular structure of cyclic silicone oil contains cyclic siloxane units. They have high viscosity and viscosity, and are commonly used as adhesives, sealants, and lubricants, making them particularly suitable for applications in high-temperature environments.

High molecular weight silicone oil: This type of silicone oil has a longer polymerization chain and higher molecular weight, usually with a higher viscosity. High molecular weight silicone oil is commonly used as a thickener, lubricant, and sealant, suitable for some special applications.

This is only a small part of the types of silicone oil, and there are many other special types of silicone oil on the market. It is very important to choose the appropriate type of silicone oil based on specific needs and applications.