High Tear Resistance Uncured FVMQ Rubber Compound

High Tear Resistance FVMQ Fluorosilicone Elastomer Uncured Compound Material

Feature:
1. Oil, solvent and chemical resistance
Compared with methyl vinyl silicone rubber, fluorosilicone rubber has excellent oil resistance, solvent resistance, and chemical resistance; even compared with fluororubber, it has good oil and solvent resistance.
After being immersed in the same medium, temperature and time, it shows excellent durability.It can be said that fluorosilicone rubber is the only elastomer that is resistant to non-polar media at -68°C to 232°C.
Fluorosilicone rubber has better resistance to methanol-containing gasoline.Even in the gasoline/methanol mixed system, the hardness, tensile strength, and volume change of the vulcanized rubber are very small.
After 500h long-term immersion test, the physical properties There is almost no change.

2. Heat resistance
The high temperature decomposition of fluorosilicone rubber is the same as that of silicone rubber, namely: side chain oxidation, main chain rupture, side chain thermal decomposition and various compound reactions.
Since the decomposition products can also cause the main chain to break, the heat resistance is usually worse than that of silicone rubber,
and it has begun to oxidize and age at a temperature of 200°C.
But by adding a small amount of heat stabilizers such as iron, titanium, rare earth oxides, etc., it can be significantly improved, and it has sufficient heat resistance even at a high temperature of 250°C.
Temperature has greater influence on fluorosilicone rubber than silicone rubber, but less than fluoroelastomer. Foreign countries have also studied the service life of fluorosilicone rubber at 150℃×2000h, 175℃×5000h,and 200℃×4000h. The result is second only to methyl vinyl silicone rubber.

3. Cold resistance
Like ordinary silicone rubber, fluorosilicone rubber has good low temperature performance. Since fluorosilicone rubber is a linear polymer composed of soft Si-O as the main chain, its low temperature characteristics are better than those of fluoroelastomers with C-C as the main chain.
Among them, fluorosilicone rubber (LS-2370U) has better low-temperature characteristics, and the brittleness temperature is as low as -89°C, while the general fluoro rubber is about -30°C.

4. Electrical performance, radiation resistance
The electrical properties of fluorosilicone rubber are similar to those of ordinary silicone rubber, but it is particularly valuable in that it changes little under harsh conditions such as high temperature, low temperature, humidity, oil, solvent, chemicals, and ozone.
The radiation resistance of fluorosilicone rubber is not outstanding, but the radiation aging resistance is better than that of methyl vinyl silicone rubber.

5. Physical and mechanical properties
Like ordinary silicone rubber, fluorosilicone rubber has relatively low mechanical strength (especially tear strength). Therefore, improving and increasing the strength of fluorosilicone rubber is also an important research topic.

6. Other features
Fluorosilicone rubber has excellent weathering resistance, even after 5 years of exposure, it still maintains good performance. Ozone is one of the most generated gases when the elastomer is aging, but no cracks or cracks are found in the fluorosilicone rubber after the dynamic or static tests.
In addition, fluorosilicone rubber has excellent mold resistance, physiological inertness, and anticoagulant properties.

Processing Method: compression molding, transfer, injection and extrusion

Color: Black, red, brown or any.

Data sheet:

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