Fluorine-containing silicone oil has contributed to breakthroughs in deep-sea exploration technology, achieving new highs in pressure resistance, sealing and anti-corrosion performance

1.High-pressure resistant fluorine-containing silicone oil has broken through the technical bottleneck of deep-sea sealing
The volume compression rate of the new fluorosilicone oil under a high pressure of 100MPa is only 0.3%, which is significantly better than the 1.8% of the traditional hydrogenated nitrile rubber. By introducing perfluoropolyether segments, the material still maintains a low viscosity characteristic within a wide temperature range of -60 ℃ to 250℃, reducing the response time of the hydraulic system of the deep-sea detector to 0.1 seconds. Experiments show that after the underwater robot carrying this material worked continuously for 100 hours at a depth of 7,000 meters in the deep sea, the leakage rate of the seal was less than 0.01mL/min.

2. Anti-corrosion coatings extend the service life of Marine equipment
The fluorosilicone oil-based anti-corrosion coating performed exceptionally well in the 3.5% NaCl salt spray test. After 3000 hours, the impedance modulus remained above 10^9Ω · cm², which was two orders of magnitude higher than that of the traditional epoxy coating. In offshore wind power equipment, this coating reduces the corrosion rate of steel structures from 0.12mm/year to 0.008mm/year and extends the maintenance cycle from 1 year to 10 years. The specially designed micro-phase separation structure also endows the coating with a self-healing function, and the scratches can automatically heal by more than 80% within 24 hours.

3. Environmental protection features drive the green transformation of Marine engineering
The bioaccumulation coefficient (BCF) of fluorosilicone oil is less than 10, far below the limit of the EU REACH regulation, and it can be naturally degraded in Marine environments. Its volatile organic compound (VOCs) emissions are only 1/20 of those of traditional solvent-based coatings, and the energy consumption in the production process is reduced by 40%. At present, this material has been certified by the International Maritime Organization (IMO) Convention on Anti-Pollution Bottom Systems, and its application proportion in the field of ship ballast tank protection has reached 27%.

4. Dual-driven by market growth and technological innovation
The global market size of fluorosilicone materials for Marine engineering is expected to increase from 1.8 billion US dollars in 2024 to 4.5 billion US dollars in 2030, among which fluorosilicone oil will account for 62%. China has made remarkable technological breakthroughs in deep-sea pressure-resistant materials. Its independently developed fluorosilicone rubber has been applied to the manned submersible "Striver", and the leakage rate of its sealing system at a depth of 10,909 meters on the seabed is zero. With the accelerated development of global Marine resources, the market size of deep-sea exploration equipment is expected to exceed 12 billion US dollars by 2025.