Hits: 2433 img
Fluorosilicone rubber raw rubber features a special molecular structure. Its main chain is composed of siloxane bonds, while the side chains contain trifluoroalkyl groups. This structure endows it with the combined advantages of silicone rubber and fluororubber. The polymerization method is similar to that of dimethyl silicone rubber, which is manufactured through the ring - opening polymerization of cyclic siloxanes. Although its heat resistance and chemical resistance are not as good as those of other fluororubbers, it can operate stably in a very wide temperature range from - 60℃ to 200℃. Moreover, it has excellent fuel oil resistance and shows little swelling in methanol.
In the aviation industry, it is an ideal material for fuel - oil and lubricant - resistant seals and contacts on aircraft. In the automotive industry, it is widely used in various vehicle components such as sealing rings, oil seals, diaphragms, conduits, and valve linings. In the petrochemical industry, it is selected for manufacturing seals for equipment like pumps, valves, and oil tanks that need to withstand high and low temperatures as well as chemical corrosion. In the medical and health field, it is used in medical devices and artificial organs. In the military industry, it can function well in harsh environments requiring low - temperature, oil, and acid resistance.
The IOTA 3110 - F series raw rubber comes in different models with varying vinyl contents, such as 0.04% (0.04 - 0.06), 0.30% (0.08 - 0.11), and 5.0% (0.21 - 0.24). The molecular weight of all models ranges from 800,000 to 1,000,000, and the volatile content is ≤3%. The end - capping is vinyl. The vinyl content and distribution have a significant impact on the properties of vulcanized rubber. An increase in vinyl content leads to a higher cross - linking ratio, resulting in increased hardness and tensile strength of the vulcanized rubber, while reducing elongation and compression set. Vinyl - end - capped raw rubber generally gives better - performing vulcanized rubber than non - vinyl - end - capped general - purpose raw rubber. This is because the terminal vinyl groups promote chain growth during cross - linking, improving the physical and mechanical properties of the vulcanized rubber. Our company uses high - purity D3F as a raw material, which results in a more uniform distribution of vinyl groups on the side chains, enhancing the cross - linking density and rebound resilience.