The most commonly used silicone oil, all organic groups are methyl, is called methyl silicone oil. Organic groups can also use other organic groups to replace part of methyl groups to improve certain properties of silicone oil and apply to various purposes. Other common groups are hydrogen silicone oil, ethyl silicone oil, phenyl silicone oil, chlorophenyl silicone oil, trifluoropropyl silicone oil, etc. In recent years, organic modified silicone oil has been developed rapidly, and many organic modified silicone oils with special properties have emerged.