Chemical Structure and Basic Characteristics
Fluorosilicone gel:
Fluorosilicon gel introduces fluorine element (such as trifluoropropyl) into the organic silicon molecular chain, giving it unique properties. The addition of fluorine element enhances the material’s high temperature resistance, corrosion resistance, and waterproof performance.
Ordinary silicone gel:
The ordinary silicone gel takes the silicon oxygen bond (Si-O) as the main chain, which has good flexibility, temperature resistance and electrical insulation, but has weak adaptability to chemical corrosion and extreme environments.
- Performance comparison
(1) High temperature resistance performance
Fluorosilicone gel: It can work stably for a long time in the high temperature environment above 300 ℃, and is suitable for applications under extreme temperature conditions.
Ordinary silicone gel: the temperature resistance range is usually about 200 ℃, and performance degradation or decomposition may occur if the temperature is exceeded.
(2) Corrosion resistance capability
Fluorosilicon gel: Due to the presence of fluorine, Fluorosilicon gel has a strong resistance to acids, alkalis, solvents, oxidants and other chemicals.
Ordinary silicone gel: It has certain tolerance to weak acids and bases, but it is easy to be corroded in strong acid and alkali environments.
(3) Waterproof and moisture-proof performance
Fluorosilicone gel: low surface tension, strong hydrophobicity, can effectively isolate moisture and moisture, suitable for high humidity environment.
Ordinary silicone gel: It has certain waterproof performance, but may absorb moisture in long-term high humidity environment.
(4) Mechanical performance
Fluorosilicone gel: high elastic modulus, stronger wear resistance and tear resistance.
Ordinary silicone gel: It has better flexibility, but its mechanical strength and abrasion resistance are relatively weak. - Comparison of application scenarios
Application fields of fluorosilicone gel
Electronics industry: MEMS packaging, semiconductor protection, flexible circuit board coating.
Aerospace: High temperature seals, corrosion-resistant components.
Automotive industry: engine peripheral sealing, sensor protection.
Chemical industry: Corrosion resistant pipeline sealing.
Application fields of ordinary silicone gel
Daily electronic devices: Low end electronic product encapsulation, LED bead protection.
Construction industry: door and window sealing, waterproof coating.
Household appliances: power module encapsulation and insulation protection. - Cost difference
Fluorosilicone gel: Due to the introduction of fluorine and the complex production process, the cost of fluorosilicone gel is high, and it is suitable for high-end and special fields.
Ordinary silicone gel: low production cost, suitable for large-scale applications and scenarios with low performance requirements.
Through the above comparison, you can clearly show the unique advantages of fluorosilicone gel in technical parameters and application scenarios, especially in the areas with high requirements such as MEMS, automotive electronics, and strengthen product competitiveness.
