Characteristics and preparation process of modified phenyl silicone oil introduction
Modified phenyl silicone oil is a type of organic silicon compound with unique physical and chemical properties. Due to its excellent lubricity, high temperature resistance, and low temperature resistance, it is widely used in various fields such as aerospace, construction, electronics, and medical. This article will provide a detailed introduction to the characteristics, preparation process, and applications of modified phenyl silicone oil in various industries.

1、 Characteristics of modified phenyl silicone oil
Thermal stability: The molecular structure of modified phenyl silicone oil contains phenyl and silicon elements, and this special structure gives it good thermal stability. In high-temperature environments, modified phenyl silicone oil can maintain stable chemical properties and is not easily decomposed or deteriorated, thereby ensuring its long-term reliability in high-temperature environments.
Lubrication: Modified phenyl silicone oil has excellent lubrication properties and can form a protective film at high temperatures, effectively preventing wear and corrosion of metal surfaces. This lubricating performance makes modified phenyl silicone oil have broad application prospects in aerospace, mechanical manufacturing and other fields.
Oxidation resistance: Modified phenyl silicone oil has good oxidation resistance and can resist the erosion of oxygen in the air, extending the service life of the material. This characteristic gives modified phenyl silicone oil significant advantages in outdoor products, automotive manufacturing, and other fields.
UV resistance: Modified phenyl silicone oil can resist UV radiation and is not easily aged or degraded by UV exposure. This characteristic makes modified phenyl silicone oil widely used in outdoor materials such as coatings, inks, plastics, etc.
Hydrophobicity: Modified phenyl silicone oil has low surface tension and can form a waterproof layer on various material surfaces, effectively improving the waterproof performance of the material. This characteristic makes modified phenyl silicone oil widely used in fields such as construction and textiles.
High transparency: Modified phenyl silicone oil has good transparency and can maintain the high transparency of the material, making it widely applicable in fields such as optical devices and LED packaging.
2、 Preparation process of modified phenyl silicone oil
The preparation process of modified phenyl silicone oil mainly includes the following methods:


Chlorosilane hydrolysis condensation method: Modified phenyl silicone oil can be obtained by hydrolysis condensation of phenyl containing chlorosilanes, combined with ring opening polymerization of siloxane rings. However, this method has problems such as difficulty in ensuring the purity of chlorosilane and severe corrosion of the generated byproduct HCl, which does not meet environmental requirements. Therefore, it cannot be widely used in industrial production.
Siloxane oligomer or ring catalytic equilibrium method: Methyl phenyl silicone oil is directly catalyzed and equilibrated using phenyl containing siloxane oligomers or rings. The catalyst used in this method is strong acids and bases such as concentrated sulfuric acid and potassium hydroxide. After the reaction is completed, sodium carbonate needs to be added for neutralization and filtration. When the viscosity of the product is high, it is difficult to filter it completely, and the catalyst used has a certain degree of corrosiveness to the environment and equipment. In addition, there have been reports of using temporary catalysts such as tetramethylammonium hydroxide, but heating to a certain temperature after the reaction can automatically decompose without the need for subsequent neutralization treatment. However, this temporary catalyst can produce a strong fishy smell, affecting product quality.
Hydrogen containing silicone oil and styrene addition reaction method: Modified phenyl silicone oil can be obtained through direct addition reaction of hydrogen containing silicone oil and styrene. This method has the advantages of mild reaction conditions and high product purity, and is currently a commonly used method in industrial production.
During the preparation process, it is necessary to strictly control the reaction conditions, raw material ratios, and catalyst types to obtain products that meet specific requirements. By precisely controlling these factors, modified phenyl silicone oil with different properties and application fields can be prepared.


3、 Application of Modified Phenyl Silicone Oil
In the aerospace field, modified phenyl silicone oil can be used for the preparation of sealing materials and lubricants. Its excellent thermal stability and lubrication performance make it significantly advantageous in extreme environments such as high temperature, high pressure, and high speed.
In the field of architecture, modified phenyl silicone oil can be used for the preparation of waterproof coatings and glass adhesives. Its excellent waterproof and weather resistance make it widely applicable in the construction industry.
In the field of electronics, modified phenyl silicone oil can be used for lubrication and moisture-proof treatment of electronic components. Its excellent lubrication performance and oxidation resistance make it play an important role in the manufacturing and maintenance of electronic products.
Medical field: In the medical field, modified phenyl silicone oil can be used for lubrication and disinfection treatment of medical devices. Its non-toxic, odorless, and non irritating characteristics make it widely used in the manufacturing and use of medical devices.
In the field of cosmetics, modified phenyl silicone oil can be used as an additive to provide a smooth and soft touch, while endowing cosmetics with good stability and durability. Its excellent lubrication performance and skin compatibility make it widely used in personal care products such as skincare, sunscreen, and cosmetics.
conclusion
Modified phenyl silicone oil has broad application prospects in various fields such as aerospace, construction, electronics, medical, cosmetics, etc. due to its unique physical and chemical properties. With the continuous advancement of industrial technology and the increasing market demand, the production and application of modified phenyl silicone oil will continue to grow and expand.