Since trifluoropropyl is introduced on the silicon atom of fluorosilicone oil, in addition to having the basic characteristics of methyl silicone oil, it also has excellent oil resistance, solvent resistance and chemical stability. Under extreme pressure conditions, it has good lubricity and can be widely used as a lubricant, defoamer, surface treatment agent, release agent and additive in cosmetics, petroleum, leather, paper and medicine. In an open system, it can be used in the temperature range of -40 to 240°C.

Used as lubricant
Fluorosilicone oil can form a molecular assembly film with a chemical composition of -CF3 on the surface of the substrate through chemical adsorption, which has high hydrophobic and oleophobic properties and can greatly reduce the friction coefficient of the substrate, making it have good wear resistance under low load.

When trifluoropropyl silicone oil is used as the base oil of lubricating grease, it can significantly improve the lubricity between steel and steel boundaries. For the watch industry and micro-mechanical industry, since the surface energy of such compounds can be as low as 20mN/m, it can reduce the surface friction coefficient and can also be used as an advanced lubricant. Lubricants formulated from fluorosilicone oil, perfluoropolyether, polyphenylene ether, etc. are used for the lubrication of record players, laser printers and other electronic machinery. They can withstand high temperatures above 121°C and do not decompose under a high speed of 1.4 million revolutions per minute, making the lubricated object have reliable performance.

Typical applications:

1. Lubricating oil for vacuum pumps for treating chemical reaction gases.
2. Lubrication of bearings in extremely low and extremely high temperature environments.
3. Used in steam power cycle systems due to its chemical inertness to fuels and other chemicals.
4. Used as base oil for thickening lubricating grease.
5. Base oil for lubricating grease in the watch industry and micro-mechanical industry.

Used as surface treatment agent for fabrics, leather, paper, etc.
Fluorosilicone oil is often used for waterproof and oil-repellent finishing of fabrics, leather, etc., and has oil-repellent and solvent-repellent properties. Generally, alkyl chains containing 8-10 perfluorocarbon atoms can achieve the maximum waterproof and oil-repellent effect. For fluorosilicone polymers with the same number of carbon atoms, the waterproof and oil-repellent performance of straight chains is more effective than that of branched chains.

1. Fluorosilicone oil with heptafluoroisopropoxypropyl (or ethyl) side chain. Its unique T-shaped fluorine-containing structure endows the product with good fluorine shielding effect. When used for fabric finishing, it can greatly improve the water-repellent, oil-repellent and antifouling properties of the fabric.
2. Fluorosilicone oil prepared from mercapto silicone oil and fluorine-containing monomer (such as fluorine-containing acrylate). After being used on textiles, especially fiber products, it can improve its oil-repellent performance.
3. Fluorosilicone oil obtained by reacting allyl siloxane with fluorine-containing thiol in the presence of AIBN at 100°C - 105°C is used for cotton fabric finishing. The finished fabric still has good waterproof and oil-repellent effects after dry cleaning and wet cleaning.
4. Fluorosilicone-modified polyurethane waterproof and oil-repellent finishing agent is synthesized from perfluoroolefin, hydroxyl silicone oil, ethylene oxide and diisocyanate. It is used for waterproof and oil-repellent finishing of fiber fabrics such as fabrics and leather, making it have excellent waterproof and oil-repellent properties, and at the same time increasing softness, smoothness and elasticity.
5. Fluorosilicone oil obtained by polymerization of macromolecular hydrogen-containing silicone oil and fluorine-containing olefin under the action of a catalyst. The fluorine content in the polymer is controllable and can be widely used as a waterproof and oil-repellent treatment agent for the surfaces of textiles, paper, metal, glass, ceramics, etc., as well as a release agent and drag reduction treatment agent for plastic and rubber.
6. Glass wool impregnated with fluorosilicone oil has excellent waterproof, oil-repellent and corrosion-resistant properties. When used in chlor-alkali industry demisters, the dehydration efficiency is significantly improved, the corrosion of equipment is reduced, the service life of the demister is significantly prolonged, and the quality of liquid chlorine and hydrogen chloride is improved.
7. A solvent-based product formulated with fluorosilicone oil containing alkenyl groups as the base polymer can be used as a release agent and has good adhesion to various substrates (paper, plastic film).
8. Fluorosilicone oil, amino silicone oil, epoxy silicone oil, polyether silicone oil, cationic/nonionic mixed surfactant and deionized water are mixed and stirred at 56°C - 60°C for 3h - 5h to make an oil agent. Used in the carbon fiber drawing production process, the oil agent forms a uniform film on the surface of the monofilament, which can not only prevent adhesion and merging of monofilaments, but also prevent friction and wear between the fiber surface and the roller during the production process. It has excellent smoothness, antistatic property, bunching property and self-emulsifying property.

Used as coating additive
Fluorine-containing silicone oil coatings have high temperature resistance, hydrophobicity, oil repellency, solvent resistance, weather resistance and other properties. When it is used in anti-fouling coatings for marine ships, its performance is better than that of silicone self-polishing coatings, providing a new way for the development of non-toxic anti-fouling coatings for ship bottoms. When used in protective coatings for solar energy devices in desert areas, it can give play to its advantages of low surface energy and self-cleaning effect. Due to the low friction of its film formation, it is used as a lubricating and protective coating for magnetic recording media and some optical instruments and equipment, such as lens protection coatings for cameras and cameras.

The coating prepared from fluorosilicone oil containing hydroxyl groups at the end, small molecule siloxane, nano silicon dioxide, decabromodiphenyl ethane, etc. has excellent flame retardancy, solvent resistance, oil resistance, high and low temperature resistance and good self-cleaning properties. The coating surface is smoother and can be formed in one step for long-term use. The service life can reach more than 20 years. The product obtained by copolymerizing (meth)acrylic acid fluorine-containing ester, alkenyl alkoxysilane and olefin monomer is developed into a water-based coating containing fluorosilicone copolymer. It has excellent adhesion to various substrates, and its coating film has excellent acid resistance, alkali resistance and durability.

Used as defoamer
Since the surface tension of fluorohydrocarbon silicone oil, especially long-chain perfluoroalkyl silicone oil, is lower than that of other silicone oils, the defoamer prepared from it is more effective in reducing the surface tension of various foaming systems and is more effective than other silicone oil defoamers. Both homopolymerized and copolymerized fluorohydrocarbon silicone oils can be used as defoamers. Fluorosilicone oil defoamers can be applied in petroleum, textile, synthetic rubber and resin industries, coating and ink industries, food processing and fermentation industries and medical applications.

Applications of fluorosilicone oil secondary products

1.    Fluorosilicone grease, fluorosilicone paste

Fluorohydrocarbon silicone oil can be used as base oil. By adding thickeners, stabilizers and modified additives, fluorosilicone grease and fluorosilicone paste can be prepared. When trifluoropropyl silicone oil is used as the base oil of lubricating grease, it can significantly improve the boundary lubricity of steel-steel. It can be used alone or mixed with dimethyl silicone oil or methylphenyl silicone oil. Its lubricity is obviously better than that of chlorophenyl silicone oil and even better than that of mineral oil lubricating grease under high load. According to the product form, thickeners can be divided into lithium soap series (fluorosilicone grease) or white carbon black and silicone resin (fluorosilicone paste). The crude product obtained by mixing base oil, thickener and modified additive must be further ground in a three-roll mill to obtain fluorosilicone grease or fluorosilicone paste that is uniform and does not contain coarse particle thickener or modified additive.

Fluorosilicone grease is suitable for -70 to 252°C and can be used for the lubrication of high-speed and heavy-load bearings in contact with chemical reagents and the lubrication and sealing of valves in contact with corrosive compounds. Fluorosilicone paste can be used as high vacuum silicone paste and can be used for the lubrication and sealing of parts in contact with benzene solvents.

2.    Fluorosilicone release agent

Fluorosilicone oil can also be used to prepare release agents. It has good anti-adhesion and lubricity, does not corrode molds, is non-toxic and safe, and can be used in molding, pouring, encapsulation and coating processes. Emulsion-type or solvent-free products formulated with fluorosilicone oil as the base polymer can be used as paper release agents and have unique properties.