Hello, today we are going to talk about fluorosilicone oil and dimethylsilicone oil, two common organic silicone oils. They are very different in chemical structure, performance and application, and I will compare them in detail from multiple perspectives.


First, let's look at the chemical structure. Fluorosilicone oil is an organosilicone compound containing fluorine atoms, commonly called polymethyl trifluoropropyl siloxane. Dimethylsiloxane, on the other hand, is a linear polymer composed of dimethylsiloxane units with a relatively simple structure.


Next comes chemical resistance. Fluorosilicone oil is very good in this respect, it can resist the corrosion of strong acids, strong bases and a variety of organic solvents, suitable for use in extreme chemical environments. The chemical resistance of dimethylsilicone oil is relatively general, and its tolerance to strong acids, strong bases and some organic solvents is not so strong, and it is more suitable for use in mild environments.


Let's talk about temperature resistance. The high and low temperature resistance of fluorosilicone oil is very good, and the working temperature range is very wide, whether it is an extremely hot or extremely cold environment, it can cope with it freely. The temperature resistance of dimethylsilicone oil is also good, but it is slightly inferior to fluorosilicone oil, and its operating temperature range is relatively narrow.


Lubricity is also a point of concern to everyone. The lubrication performance of fluorosilicone oil is very excellent, especially suitable for high load and high speed working conditions. The lubrication performance of dimethyl silicone oil is also good, but it is more suitable for general working conditions.


In terms of surface tension, the performance of fluorosilicone oil is very prominent, its surface tension is extremely low, and its wettability and spreadability are very good. The surface tension of dimethyl silicone oil is also lower, but it is still worse than that of fluorosilicone oil.


In terms of water resistance, fluorosilicone oil also performs well and is often used in situations requiring strong water resistance, such as waterproof coatings. The waterproof performance of dimethylsilicone oil is also good, but it is slightly weaker than fluorosilicone oil.


Let's look at the application area. Because of its excellent properties, fluorosilicone oil is often used in aerospace, chemical and electronic fields. For example, in aerospace, it can be used in high temperature, high chemical corrosion environment lubrication and sealing; In the chemical industry, it can be used as a chemically resistant seal and coating; In the electronics industry, it is the first choice for high-performance lubricants and insulation materials. Dimethylsilicone oil is more widely used, such as in cosmetics, it is commonly used as a lubricant for skin care and hair care products; In the textile industry, it can be used as a softener and water repellent; In the automotive sector, it is a common choice for lubricants and sealants.


Finally, there is cost. Fluorine silicone oil because of the complex production process, high production costs, so the price is relatively expensive. The production cost of dimethyl silicone oil is relatively low, and the price is more affordable.


To sum up, fluorosilicone oil is suitable for use in extreme environments, its chemical resistance, temperature resistance and lubrication are very good, but the cost is higher. The dimethyl silicone oil is more suitable for general working conditions, its lubricity and water resistance are good, and the cost is relatively low. The specific choice of silicone oil, or depends on your actual needs and working environment.


Well, today's share is here, I hope to help you!


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