Fluorosilicone (FVMQ) rubber compound is a translucent uncatalyzed fluorosilicone rubber base mixed evenly with some kinds of fillers and additives. After vulcanization, fluorosilicone rubber can be obtained. Fluorosilicone rubber is a new type of elastomer which has combined the advantages of silicone rubber and fluororubber.
| Product | Type | How to use |
|---|---|---|
| TPD-FS-R8200 | General Purpose | Properties obtained using 0.55 phr 2,5-bis (tert-butylperoxy)-2,5-dimethylhexane (DHBP). Molded 15min at 170℃, post-cured 4hr at 200℃. If other cure temperature needed, vulcanization system shall be changed. |
| TPD-FS-R8300 | High Tear Strength | Properties obtained using 0.7phr. 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane(DBPH). Molded 15min at 170°C, post-cured 4hr at 200°C. If other cure temperature needed, vulcanization system shall be changed. |
| TPD-FS-R8500 | High Rebound Resilience | Properties obtained using 0.7phr. 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane(DBPH). Molded 15min at 170°C, post-cured 4hr at 200°C. If other cure temperature needed, vulcanization system shall be changed. |
| TPD-FS-R8600 | Extrusion Type | It is recommended to use 0.8-1.0 phr. peroxide (2,4-dichlorobenzoy) Vulcanizing agent (DCBP). The users should decide the optimum curing temperature and time according to the product dimensions and curing methods. |
| TPD-FS-R8800 | For Turbocharger Tubes | It is recommended to use 0.8-1.0 phr. peroxide (2,4-dichlorobenzoy) Vulcanizing agent (DCBP). The users should decide the optimum curing temperature and time according to the product dimensions and curing methods. |
| TPD-FS-LR7400 | Addition Type | when in use, the component A and component B are mixed completely on the three-roller grinder or planetary mixer according to the mass ratio of 1:1, and then defoaming treatment, mould pressing and coating curing. Or if you use an injection molding machine, you can operate directly the vulcanization process by the platform. The users shall decide the optimum curing temperature and time according to the product dimensions and curing methods. |
Features
Compared with methyl vinyl silicone rubber(VMQ), fluorosilicone rubber has excellent oil & solvent resistance and chemical resistance. Even compared with fluorosilicone rubber, its oil & solvent resistance is also good. It can be said that fluorosilicone rubber is the only kind of elastomer that can withstand non-polar medium at the temperature of -68℃ ~232℃.Fluorosilicone rubber also has good resistance to methanol-containing gasoline. Even in the gasoline/methanol mixture system, its hardness, tensile strength and volume have little change. After 500 hours of impregnation test, the physical properties of fluorosilicone rubber have almost no change.
The decomposition of fluorosilicone rubber at high temperature is the same as that of silicone rubber, that is, side chain oxidation, main chain fracture, side chain thermal decomposition and various complex reactions. Because the decomposition products also cause the main chain to break, the high temperature resistance is usually worse than that of silicone rubber, which has begun to oxidize at 200℃. However, by adding a small amount of heat stabilizers such as iron, titanium and rare earth oxides, it can be significantly improved, even at 250℃, it has enough heat resistance. The effect of temperature on fluorosilicone rubber is greater than that of silicone rubber, but less than that of fluororubber.
Fluorosilicone rubber has the same low temperature properties as ordinary silicone rubber. Because fluorosilicone rubber is a linear polymer with soft Si-O as the main chain, its low temperature performance is due to the fluoroelastomer with C-C as the main chain.
The electrical properties of fluorosilicone rubber are similar to those of ordinary silicone rubber, but the special value of fluorosilicone rubber is that its electrical properties change little under the harsh conditions of high temperature, low temperature, humidity, oil, solvent, chemical, ozone and so on. The radiation resistance of fluorosilicone rubber is not outstanding, but the radiation aging resistance of fluorosilicone rubber is better than that of methyl vinyl silicone rubber.
The weather and aging resistance of fluorosilicone rubber are very good, even after exposure for 5 years, it still maintains good properties. Ozone is one of the most common gases produced during aging of elastomers, but no cracks were found in fluorosilicone rubber after dynamic or static tests.
The weather and aging resistance of fluorosilicone rubber are very good, even after exposure for 5 years, it still maintains good properties. Ozone is one of the most common gases produced during aging of elastomers, but no cracks were found in fluorosilicone rubber after dynamic or static tests.
In addition, the anti-mildew, physiological inertia and anticoagulation of fluorosilicone rubber are also very good.
