Some organic groups are used to replace part of the methyl groups in methyl silicone oil to improve certain properties of silicone oil and adapt to various uses. In recent years, organically modified silicone oils have developed rapidly, and many organically modified silicone oils with special properties have emerged, such as alkyl modified silicone oils, polyether modified silicone oils, epoxy modified silicone oils, amino modified silicone oils, and so on.
      The largest and most important product among modified silicone oils is polyether-modified silicone oil. The hydrophilic polyether segment of polyether-modified silicone oil gives it water-soluble, lyophobic and hydrophobic polydimethylsiloxane. The alkane segment gives it low surface tension. Polyether silicone oil is used as a leveling agent and emulsifier for polyurethane foam, a raw material for personal protection products, a leveling agent for coatings, and a water-soluble lubricant.