Special types of silicone oil and their wide applications Silicone oil, as a high-performance liquid silicone product, plays a crucial role in many industrial fields and daily life due to its unique chemical structure and properties. There are many types of silicone oil, and each special type of silicone oil is suitable for different application scenarios due to its unique properties. This article will delve into several special types of silicone oil and their wide range of applications.


1、 Special types of silicone oil
Silicone oil can be classified into various types based on the different substituents on the chain, among which the most common ones include methyl silicone oil, phenyl silicone oil, ethyl silicone oil, etc. In addition, there are some modified silicone oils with special functions, such as hydrogen containing silicone oil, hydroxyl silicone oil, amino silicone oil, etc.


Methyl silicone oil
Methyl silicone oil, also known as ordinary silicone oil, is the most commonly used type of silicone oil. All of its organic groups are methyl, therefore it has good chemical stability, insulation, and hydrophobicity. Methyl silicone oil is synthesized by hydrolysis of dimethyl dichlorosilane with water to obtain a primary condensed ring, which is then subjected to processes such as cracking, distillation, polymerization adjustment, and vacuum distillation. Methyl silicone oil has the characteristics of low thermal viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, and low volatility, which make it widely used in various fields such as electrical insulation, demolding, defoaming, damping and shock resistance.


Phenyl silicone oil
Phenyl silicone oil is obtained by partially replacing the methyl group on the polysiloxane chain with a phenyl group. According to the different content of phenyl groups, it can be divided into low phenyl silicone oil, medium phenyl silicone oil, etc. Phenyl silicone oil has excellent heat resistance, cold resistance, and compatibility, making it widely applicable in various fields such as chemical, pharmaceutical, and textile industries. High phenyl silicone oil and low degree of polymerization phenyl silicone oil perform well in specific application scenarios due to their unique physical and chemical properties.


Ethyl silicone oil
Ethyl silicone oil is prepared through a series of complex chemical reactions and has characteristics such as low volatility, low surface tension, non toxicity, non corrosiveness, and aging resistance. These characteristics make it an important choice for insulation materials in the electrical industry, and it is also widely used in fields such as precision instrument oil, hydraulic oil, and special lubricating oil.


Modified silicone oil
Modified silicone oil includes various types such as hydrogen containing silicone oil, hydroxyl silicone oil, amino silicone oil, etc. Hydrogenated silicone oil plays an important role in industrial application, and is often used to prepare addition liquid gel and silicon gel. Hydroxysilicone oil plays a role as a structural control agent in the production of room temperature silicone rubber, and is also a key chain extender in the synthesis of other products. Amino silicone oil is the core component of textile softening agents, which can significantly improve the softness and comfort of fabrics.


2、 Application areas of silicone oil
Silicone oil plays an indispensable role in multiple fields due to its unique properties.


Electrical insulation
Silicone oil is widely used as an insulation medium for temperature resistance, arc corona resistance, corrosion resistance, moisture resistance, and dust prevention in fields such as motors, electrical appliances, and electronic instruments. In addition, silicone oil is also used as an impregnating agent for equipment such as transformers, capacitors, and scanning transformers for televisions to improve the safety and reliability of the equipment.


Release agent
Silicone oil, as a release agent, is widely used in plastic molding, rubber processing, metal casting, papermaking, glass products, fibers, food and other fields. Silicone oil release agent has the advantages of strong release ability, high surface accuracy of products, low dosage, and multiple uses after one coating, which can significantly improve production efficiency and product quality.


Defoamer
Silicone oil is one of the most widely used defoamers. It has strong defoaming ability, high temperature resistance, non volatility, and high chemical stability, and is widely used in industries such as petroleum, chemical, printing and dyeing, coatings, pharmaceuticals, leather making, fermentation, and food. Silicone oil defoamer can effectively suppress foam problems in various processes, and improve production efficiency and product quality.


Damping shock absorption
Silicone oil has been widely used in fields such as instruments, shock absorbers, shock absorbers, and torsional vibration dampers in automotive internal combustion engines. Silicone oil, as a liquid shock-absorbing and damping material, has the advantages of stable shock-absorbing performance and low temperature influence. It can maintain stable performance in situations with strong mechanical vibration and large environmental temperature changes.


Lubricating oil
Silicone oil, as advanced lubricating oil, shock-absorbing oil, insulating oil, vacuum diffusion pump oil, etc., has a wide range of applications in various precision machinery, instruments, and meters. Silicone oil lubricants have characteristics such as high and low temperature resistance, oxidation resistance, and low volatility, which can meet the lubrication needs of various complex working conditions.


Surface treatment agent
Silicone oil can be used as a surface treatment agent and applied to glass, ceramic, and metal surfaces. After heat treatment, it can form a semi permanent waterproof, anti mold, and insulating film. This type of film can significantly improve the waterproof, anti mold, and insulation properties of materials, and is widely used in fields such as construction, electronics, aerospace, etc.


Cosmetics and skincare products
Silicone oil is widely added to cosmetics and skincare products due to its excellent lubrication, resistance to sunlight and ultraviolet radiation, and breathability. Silicone oil can increase the smoothness and extensibility of products, while forming a protective film that helps moisturize and protect the skin. In addition, silicone oil also has good skin permeability, which can improve the drug's ability to penetrate the skin and enhance its efficacy.


Other applications
In addition to the above-mentioned application fields, silicone oil is also widely used in various fields such as automotive beauty and maintenance, daily chemical industry, textile industry, food industry, etc. In terms of car beauty and maintenance, silicone oil lotion is used for tire polishing and instrument panel polishing; In the daily chemical industry, silicone oil is used to make sunscreen, lipstick and other cosmetics; In the textile industry, silicone oil is used as a softener, lubricant, etc. to enhance the hand feel of fabrics; In the food industry, silicone oil is used as an organic silicon defoamer, food packaging material, etc.


3、 Conclusion
Silicone oil, as a high-performance liquid organic silicon product, has various special types and wide application fields. From electrical insulation to release agents, from defoamers to damping and shock absorbers, from lubricants to surface treatment agents, silicone oil plays an indispensable role in various fields. With the continuous development of technology, the application fields of silicone oil will be further expanded, bringing more innovation and change to human society. In the future, we can expect silicone oil to demonstrate its unique charm and value in more fields.