Phenyl silicone oil is a silicone material with excellent properties and is widely used in industry. This kind of silicone oil is obtained by replacing part of the methyl groups in methyl silicone oil with phenyl groups, so it is also called methylphenyl silicone oil. Compared with dimethyl silicone oil of the same viscosity, phenyl silicone oil exhibits a higher viscosity-temperature coefficient, lower freezing point and flash point, and its compression resistance and viscosity change faster under pressure.

 The characteristics of phenyl silicone oil change as the phenyl mole fraction increases. High temperature resistance, radiation resistance, lubricity and solubility in organic solvents are all significantly improved, but low temperature resistance shows a downward trend. For example, low phenyl silicone oil is still fluid at -70°C, while high phenyl silicone oil only oxidizes and increases in viscosity when heated above 250°C. This property makes phenyl silicone fluids stable under a wide range of extreme conditions, making them ideal for a variety of industrial applications.

 In industrial applications, phenyl silicone oil is often used as heat treatment bath and high-temperature heating oil for metal products due to its good thermal stability and radiation resistance. In addition, it can also be used as a carrier for gas chromatography for chemical analysis. In the field of electronic and electrical equipment, phenyl silicone oil is used as a high and low temperature lubricant to effectively reduce friction and wear and extend the service life of equipment. After adding carbon black, potassium soap or platinum disulfide, they can be made into high-temperature grease for lubrication of high-temperature fan bearings, ball bearings, automobile engines, textile dryers and other equipment.

 In hydraulics, instrumentation, electrical insulation, etc., phenyl vinyl silicone oil and phenyl hydrogen-containing silicone oil can be used to prepare high temperature and radiation resistant addition silicone to improve the high temperature resistance and radiation resistance of rubber. As a fabric finishing agent, hydroxyl-terminated phenyl silicone oil can significantly improve the smoothness and flexibility of the fabric, while giving the fabric good hydrophobicity and oil repellency, making the fabric easier to clean and maintain.

 In short, phenyl silicone oil plays an irreplaceable role in industrial applications due to its unique properties and provides important material support for industrial production.