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Hydroxy silicone oil, also known as dimethyl hydroxy silicone oil, is a colorless or light yellow transparent oily liquid with no odor or taste. Its structural formula is HO[(CH3)2SiO]nH, featuring a silicon-oxygen bond as the main chain, methyl groups as side groups, and hydroxyl groups as end groups. This special molecular structure gives hydroxy silicone oil a series of unique characteristics and a wide range of applications.
Thermal Stability and Weather Resistance: The Si-O bond in hydroxy silicone oil has high thermal stability, allowing it to maintain its properties in high-temperature environments. At the same time, it has strong resistance to ultraviolet light and aging, making it suitable for long-term outdoor use.
Chemical Stability: Hydroxy silicone oil has strong resistance to acids, bases, and salts, and is not easily reacted with chemical substances, ensuring its stability in various complex environments.
Low Surface Tension and Water Repellency: Hydroxy silicone oil has a low surface tension, making it easy to spread on interfaces, and has good water repellency, which makes it widely used in textile, leather, and paper treatment agents.
Lubricity and Wear Resistance: Hydroxy silicone oil has a low coefficient of friction, which can be used to reduce friction and wear, improving the service life of products.
Electrical Insulation: Hydroxy silicone oil has excellent electrical insulation properties, making it important in the electrical and electronic industries.
Small Viscosity-Temperature Coefficient and Large Compressibility: Hydroxy silicone oil has a small viscosity-temperature coefficient and large compressibility, making it exhibit excellent performance in some special application occasions.
Silicone Rubber Processing: Low-viscosity hydroxy silicone oil is an excellent structural control agent in silicone rubber processing. It can effectively control the structural interaction between mixed rubber and white carbon black, improving silicone rubber processing performance and extending the storage life of the rubber compound.
Textile, Leather, and Paper Treatment: Hydroxy silicone oil can be used as a waterproof, softening, and anti-sticking treatment agent for textiles, leather, and paper. In textiles, adding hydroxy silicone oil can give fibers a soft and smooth hand feel while improving their waterproof and stain-resistant properties. Additionally, hydroxy silicone oil can be used for leather finishing, enhancing leather's resistance to water, solvents, and mechanical abrasion.
Paints and Inks: As an additive, hydroxy silicone oil can improve the production process of paints, maintain their storage stability, improve their construction properties, and enhance product quality. At the same time, it can give paints some special functions, such as leveling, scratch resistance, and anti-blocking. In inks, hydroxy silicone oil can improve ink dispersion and printing effects.
Personal Care and Cosmetics: Hydroxy silicone oil is also widely used in personal care products such as skincare creams, hair conditioners, and shampoos, enhancing the user experience.
Other Applications: Hydroxy silicone oil can also be used to synthesize various polysiloxanes as intermediates. It has wide applications in the pharmaceutical field as a drug-release agent and lubricant. Additionally, it can be used as a main component of insulating paints or as a component of insulators in the electrical and electronic industries.
The characteristics and applications of hydroxy silicone oil make it widely used in various fields such as chemicals, textiles, leather, paints, electronics and electrical engineering, and biomedicine. With the continuous advancement of technology and people's increasing demands for product quality, the application fields of hydroxy silicone oil will continue to expand.
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