I. Nano-filler modification technology
1. ‌Fumed silica modification‌
‌Fluorination modification process‌: Hydroxyfluorosilicone oil or fluorosilane coupling agent (such as tridecafluorooctyl triethoxysilane) is used to treat the surface of fumed silica to improve its dispersibility and interfacial bonding force in fluorosilicone oil, so that the composite material has both mechanical enhancement and hydrophobicity (water contact angle>120°, diiodomethane contact angle>100°).
‌Performance improvement‌: After modification, the tensile strength of fluorosilicone rubber filled with nano-SiO₂ is increased by 40%, and the swelling rate of fuel oil resistance is reduced to less than 5%.
2. ‌Nano-calcium carbonate composite‌
Nano-calcium carbonate is coated with fluorosilicone surfactant (hydroxyl fluorosilicone oil + allyl polyoxyethylene ether compound) to enhance its affinity with fluorosilicone oil. When used as sealing materials, it can withstand low temperatures of -50°C and compression permanent deformation is less than 15%.

II. Functionalized Nano Hybrid System

Modification Technology


Core Materials


Functional Breakthrough


Graphene Oxide Composite


Fluorosilicone Modified Emulsion + Graphene Oxide


Forming a dense barrier network, the impedance value after 20 days of salt spray test is >8.7×10⁶ Ω·cm²


Fluorinated Nano ZnO Coupling


Fluorinated Amino Silicone Oil + Triethanolamine Modified ZnO


The thermal conductivity is increased by 200%, while maintaining the hydrophobicity of the fabric


III. Industrial Application and Performance Comparison


(I) Sealing and Protection Field


Aviation Fuel Hose: Adding 5% fluorinated nano-SiO₂ fluorosilicone material, the resistance to hydrocarbon solvent penetration is increased by 60%, and the service life is extended to 3 times that of ordinary rubber.


Anti-corrosion coating: Water-based fluorosilicone/nano-SiO₂ hybrid coating is used in petrochemical pipelines, and the acid medium corrosion resistance period is extended to more than 5000 hours.
(II) Lubrication system upgrade
The friction coefficient of nano-Al₂O₃ modified fluorosilicone grease is reduced to 0.08 at -50°C, and the micromechanical wear rate is reduced by 50%.

IV. Technology development trend
‌Directed grafting technology‌: Through the controllable grafting of fluorosilane nanoparticles (such as SiO₂, TiO₂), filler-matrix chemical bonding is achieved to avoid phase separation.
‌Green process‌: Develop ionic liquid solvent system to reduce the use of organic solvents (such as nano calcium carbonate fluorosilicone modification process).