Fluorosilicone rubber compound can be modified by adding fillers or copolymers to significantly improve its various properties to meet a wider range of application needs.
Filler modification is mainly achieved by adding an appropriate amount of fillers, such as fumed silica, precipitated silica, etc., to fluorosilicone rubber compound to enhance its physical and mechanical properties and oil resistance. These fillers can form a dense cross-linked network, effectively preventing non-polar oil molecules from penetrating into the rubber, thereby improving oil resistance.
Different types of fillers have different effects on the performance of fluorosilicone rubber compound. For example, fumed silica has a strong interaction with the rubber matrix due to its high surface content of hydroxyl groups, which can significantly improve the tensile strength. Precipitated silica may show better performance in other aspects.
Copolymer modification is achieved by introducing fluorinated monomers or other functional monomers to copolymerize with silicone rubber, thereby changing its chemical structure and giving fluorosilicone rubber compound better performance. This method can fundamentally improve the oil resistance, solvent resistance and high temperature resistance of rubber.
The selection of copolymer monomers is crucial to the performance improvement of fluorosilicone rubber compound. Different comonomers may bring different performance improvements, such as improving temperature resistance, enhancing mechanical strength or improving processing performance.
In order to achieve the best modification effect, the modification process needs to be optimized. This includes selecting appropriate parameters such as mixing temperature, time and pressure to ensure that the filler or copolymer is evenly dispersed in the fluorosilicone rubber compound.
The modified fluorosilicone rubber compound needs to be fully evaluated for performance, including oil resistance, high temperature resistance, mechanical strength, etc. By comparing the performance data before and after modification, it can be evaluated whether the modification effect meets expectations.
Due to its excellent performance, the modified fluorosilicone rubber compound has broad application prospects in the fields of automobiles, aerospace, and medical treatment. Especially in situations where it needs to withstand high temperature, high pressure or corrosive media, the modified fluorosilicone rubber compound will play a greater role.
