Julyherb supply 2024 popular products cosmetics grade Dimethyl silicone oil
What is dimethyl silicone oil?
Silicone oil usually refers to linear polysiloxane products that remain liquid at room temperature. Generally divided into methyl silicone oil and modified silicone oil two categories. The most commonly used silicone oil – methyl silicone oil, also known as ordinary silicone oil, its organic groups are all methyl, methyl silicone oil has good chemical stability, insulation, good hydrophobic performance.
Dimethyl silicone oil is a colorless, transparent synthetic polymer available in a wide viscosity range (5cP–8 million cP), spanning from free-flowing liquids to semi-solid forms. This material exhibits unique characteristics including exceptional smoothness, softness, and hydrophobicity, coupled with outstanding chemical stability. Its remarkable electrical insulation properties and thermal resilience allow for performance consistency across extreme temperatures.
The oil demonstrates a high flash point and low freezing point, enabling reliable operation within -50°C to +200°C. Key technical features include minimal viscosity-temperature coefficient, high compressibility, and low surface tension. With superior moisture resistance and low thermal conductivity, it delivers consistent performance in demanding environments while maintaining structural integrity.
Dimethyl silicone oil – Properties
Physical Properties & Solubility
Dimethyl silicone oil exhibits a variable consistency from clear liquid to thick semi-solid, maintaining colorlessness and odorlessness throughout. Its molecular weight depends on polymerization degree. The compound is insoluble in water, methanol, vegetable oil, and paraffin hydrocarbons, with limited solubility in ethanol, butanol, and glycerol. It demonstrates excellent solubility in aromatic hydrocarbons (benzene, toluene, xylene), ethers, and chloroalkanes.
Performance Characteristics & Applications
This silicone oil features minimal viscosity-temperature coefficient, high compressibility, and low surface tension. With outstanding moisture resistance, low thermal conductivity, and exceptional electrical insulation, it operates reliably across -50°C to +200°C. Additional advantages include high flash point, low pour point, and long-term thermal stability, making it ideal for extreme-temperature applications.
Dimethyl silicone oil – Standard
Dimethyl silicone oil – Preparation method
This product is a linear polymer of dimethylsiloxane, containing polymerized dimethylsiloxane 97.0% ~ 103.0%. It has different viscosity due to different degree of polymerization. According to the different motion viscosity, this product is divided into 20, 50, 100, 200, 350, 500, 750, 1000, 12 500, 30 000 ten models.
Using dimethyldichlorosilane, water and solvent as raw materials, octamethylcyclotetrasiloxane was obtained by hydrolysis, neutralization and fractionation. Octamethylcyclotetrasiloxane was prepared by polymerization under the action of catalyst.
Dimethyl silicone oil – Uses
Used as defoamer in chemical, pharmaceutical and food industries;
Plastic and rubber molding processing used as efficient release agent; Used as polish for cars, furniture, floors and leather; Used as high temperature resistant dielectric liquid in electrical and electronic industry.
The glass, ceramic, metal, textile, cement products treated by this product, not only hate water, and anti-corrosion, anti-mildew, smooth surface, feel smooth.
Used in the cosmetics industry as head oil, hair cream, hairdressing agent, hair fixing agent and sunscreen;
It can also be used as a high and low temperature lubricant between various materials and a lubricant for plastic manufacturing and as a shockproof damping material for precision machinery and instruments
