This product is made of organic silica gel. The basic structural unit of organic silica gel is composed of siloxane chain, and the side chain is connected with other organic groups through silicon atoms. Therefore, the structure of silicone products contains both "organic group" and "inorganic structure". The special composition and molecular structure make it possible to integrate the characteristics of organic matter and the functions of inorganic matter. Compared with other polymer materials, the most outstanding properties of silicone products are as follows:
1. Temperature resistance
Therefore, the thermal stability of silicone products is high, and the chemical bonds of molecules will not break or decompose under high temperature (or radiation exposure). Silicone resin is not only resistant to high temperature, but also to low temperature, so it can be widely used. Both the chemical properties and physical and mechanical properties change little with temperature.
2. Weather resistance
Silicone resin has higher thermal stability, radiation resistance and weather resistance than other polymer materials. The life span of organosilicon in natural environment can reach several decades.
3. Electrical insulation performance
Silicon products have good electrical insulation performance. The dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity and surface resistivity of insulating materials are the best, and their electrical properties are affected by temperature and frequency. The impact is small. Therefore, they are a kind of stable electrical insulation materials, which are widely used in electronic, electrical and other industries. In addition to excellent heat resistance, silicone resin also has excellent water repellency, which is the guarantee of high reliability of electrical equipment in humid environment.
4. Physiological inertia
Polysiloxane is one of the most inactive compounds known. They are very resistant to biological aging and have good anticoagulant properties.
5. Low surface tension and surface energy
The main chain of organosilicon is very flexible, and the intermolecular force is much weaker than that of hydrocarbons. Therefore, it has lower viscosity than hydrocarbons with the same molecular weight, weak surface tension, low surface energy and strong film-forming ability. Such low surface tension and low surface energy are the main reasons for their applications: hydrophobic, defoaming, foam stability, viscosity resistance, lubricity, vitrification and other excellent properties.
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