The existing fluorosilicone oil on the market is mostly perfluorosilicone oil, whose price is relatively high. The traditional use method is to add fluorosilicone oil as a functional assistant to improve some of the performance of the system. For example, in the traditional additive silicone rubber, vinyl perfluorosilicone oil is added to improve the polarity resistance, non-polar solvent and oil resistance of the system.
But because the polarity of fluorosilicone oil is relatively large (the higher the fluoride content, the greater the polarity), the compatibility with the traditional vinyl silicone oil is not good. When the mixture is evenly mixed and standing, it will also lead to delamination due to polarity differences. After curing and cross-linking, there may be differences in shrinkage rate and other differences, resulting in poor mechanical properties. At the same time, due to compatibility problems, fluorine groups cannot be uniformly distributed in the whole system after curing and cross-linking, resulting in a significant reduction in modification performance.
Therefore, it is recommended to use vinyl sealing low fluoride fluorosilicone oil to replace the traditional vinyl silicone oil as the base material for the preparation of anti-fouling flash, polarity resistance, non-polar solvent and oil resistance and other properties of the molding adhesive. (according to the requirements of the corresponding preparation of hydrofluorosilicone oil, methyl fluorosilicone oil, etc.).
Condensing adhesive suggested using hydroxyl sealing low fluoride silicone oil instead of the traditional 107 silicone rubber as the base material to prepare industrial adhesive with corresponding properties.
Traditional process condition, the thermal conductive silicone is the silicone oil as the substrate, the thermal conductive powder as filler, and add the function additives, the mixture of grinding and become, the process of preparation of silicone oil is a common powder intermiscibility is poor, dry oil from big or products, big shortcomings, such as viscosity, which as a matrix, dimethyl silicone oil had the greatest influence on the thermal conductivity of silicone oil from, In order to improve the solubility of oil powder and avoid the polarity problem caused by the high fluoride content, it is suggested that the low fluorine silicone oil with lower viscosity can be used instead of the traditional dimethyl silicone oil as matrix.
Fluorine and silicone oil applied to lubrication, take off the film, thermal conductivity silicone grease, and other fields, if simply using fluorinated silicone oil, due to the strong polarity, poor wettability, instead of using effect is poor, fluorinated silicone oil as additive is used, the same problems and the compatibility of methyl silicone oil, replace methyl silicone oil with low fluoride silicone oil, can avoid these problems.