Fluorosilicone oil additive technology mainly optimizes its anti-wear, lubricity, surface activity and compatibility by introducing specific functional groups or compounds. The main technical routes and applications are as follows:

I. Anti-wear and lubricity additives
‌Phosphate ester additives‌
Tris(methylsiloxane) phosphate can significantly improve the wear spot morphology of steel balls, leaving only slight scratches on the friction surface and reducing the friction coefficient to about 0.12.
Fluorosilicone oil containing phosphate is synthesized by hydrosilylation and phosphorus oxychloride reaction to enhance wear resistance and is suitable for high-load mechanical parts.
‌Chlorine-containing compound additives‌

When 1.0% of 1,3-bis(dichloromethyl)-1,1,3,3-tetramethyldisiloxane is added, the diameter of the steel ball wear spot is reduced from 1.15mm to 0.59mm, reducing the depth and number of furrows.
‌Fluorinated monomer grafting technology‌

Fluorinated monomers (such as perfluoropolyether) are grafted to hydrogenated silicone oil through a silane-hydrogen addition reaction to form a twin structure, which improves wettability and defoaming properties and is suitable for the coating field.

2. Application fields of functional additives
(I) Lubrication and sealing
‌Grease base oil modification‌: Fluorosilicone oil additives improve the lubricity of steel-steel boundaries and are used in high-speed equipment such as laser printers.
‌Vacuum pump seals‌: Lubricants with fluorinated polyether formulas are resistant to high temperatures of 121°C and extreme working conditions of 1.4 million revolutions per minute.
(II) Surface treatment agents
‌Fabric/leather finishing‌: Straight-chain fluorosilicone oils containing 8-10 perfluorocarbon atoms can achieve the best waterproof and oil-repellent effect.
‌Stone protection‌: Hydroxyl fluorosilicone oil condenses with the silanol group on the stone surface to form a directional hydrophobic film, and the hydroxyl value needs to be controlled to 4-6 mgKOH/g2.
(III) Rubber and coating processing
Structural control agent: Hydroxyl fluorosilicone oil (hydroxyl content 0.50%-2.0%) blocks the crystallization of siloxane during storage of fluorosilicone rubber and prolongs the operating time.
Coating modifier:
Increase the hardness of UV ink to 6H level;
Adding 0.1-5 parts of fluorosilicone oil to the defoamer can achieve efficient defoaming.