Methyl fluorosilicone oil, as a special silicone polymer, plays an irreplaceable role in many fields. It is polymerized from trifluoropropyl methylsiloxane monomers, with methyl end caps at both ends of the molecule. It often presents the appearance of a colorless, transparent liquid without mechanical impurities.
Methyl fluorosilicone oil has a series of remarkable properties. It has a low surface tension, which makes it excellent in reducing the surface tension of the foaming system and can effectively defoam. It is excellent in oil resistance and has good solvent resistance, and can remain stable in a variety of chemical environments. In terms of temperature adaptability, it inherits the wide operating temperature range of silicone oil and can function stably in the range of -60℃ to 200℃.
In terms of preparation methods, the common one is the hydrosilylation method, but this method has the disadvantages of using a large amount of toxic and harmful organic solvents and a complicated reaction process. Nowadays, new preparation technologies are constantly emerging. For example, using trifluoropropylmethylcyclotrisiloxane, siloxane ring body, silicone capping agent, and tetramethylammonium hydroxide alkali gel as catalysts, the preparation is carried out by controlling the polymerization conditions, which not only improves the conversion rate and purity, reduces the volatility, but also avoids the use of organic solvents, making it more environmentally friendly and efficient.
Methyl fluorosilicone oil is widely used. In the field of defoamers, due to its excellent ability to reduce surface tension, it is widely used in industries such as petroleum, textiles, synthetic rubber and resin industries. In the field of lubrication, with its oil resistance, solvent resistance and low surface tension, it has become a high-quality raw material for corrosion-resistant grease and silicone grease. It can be used for bearing lubrication in extremely low and high temperature environments, as well as steam power circulation systems that are chemically inert to fuels and other chemicals. In terms of fabric finishing, it can be used for waterproof and anti-fouling finishing of fabrics, leather, etc., giving the material oil repellency and solvent repellency. In addition, in the field of coating additives, coatings with methyl fluorosilicone oil added have high temperature resistance, hydrophobicity, oil repellency, solvent resistance and other properties, and have broad application prospects.
Methyl fluorosilicone oil occupies an important position in industrial production and daily life due to its unique properties. With the continuous development of technology, its application areas will continue to expand.