Properties of organic silicon

The basic structural unit of organic silicon products is composed of silicon oxygen chain links, and the side chains are connected with other organic groups through silicon atoms. Therefore, the structure of organic silicon products contains both "organic groups" and "inorganic structures". This special composition and molecular structure make it combine the characteristics of organic substances with the functions of inorganic substances. Compared with other polymer materials, silicone products are the most outstanding

The output performance is:

1: Temperature resistance characteristics

Organic silicon products take silicon oxygen (Si-O) bond as the main chain structure, the bond energy of C-C bond is 82.6 kcal/mole, and the bond energy of Si-O bond in organic silicon is 121 kcal/mole, so the thermal stability of organic silicon products is high, and the chemical bond of molecules does not break or decompose under high temperature (or radiation exposure). Organic silicon can not only withstand high temperature, but also low temperature, and can be used in a wide temperature range. Both chemical properties and physical and mechanical properties change little with temperature.

2: The main chain of weather resistant silicone products is - Si-O -, and there is no double bond, so it is not easy to be decomposed by ultraviolet light and ozone. Organic silicon has better thermal stability, radiation resistance and weather resistance than other polymer materials. The service life of organic silicon in natural environment can reach several decades.

3: Electrical insulation performance All silicone products have good electrical insulation performance. Their dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistance coefficient and surface resistance coefficient are among the best among insulating materials, and their electrical performance is little affected by temperature and frequency. Therefore, they are stable electrical insulating materials, and are widely used in electronic and electrical industries. In addition to excellent heat resistance, organic silicon also has excellent water repellency, which is the guarantee of high reliability of electrical equipment in wet conditions.

4: Physiologically inert polysiloxanes are among the most inactive compounds known. They are very resistant to biological aging, have no rejection reaction with animals, and have good anticoagulant properties.

5: The main chain of low surface tension and low surface energy silicone is very flexible, and its intermolecular force is much weaker than that of hydrocarbons. Therefore, its viscosity is lower than that of hydrocarbons with the same molecular weight, its surface tension is weak, its surface energy is small, and its film forming ability is strong. This low surface tension and low surface energy are the main reasons for its various applications: hydrophobic, defoaming, foam stability, anti sticking, lubrication, polishing and other excellent properties.

2、 Use of organic silicon

Due to the above excellent properties of organic silicon, its application scope is very wide. It is not only used as a special material in aviation, cutting-edge technology and military technology sectors, but also used in various sectors of the national economy. Its application scope has expanded to: construction, electronics and electrical, textile, automobile, machinery, leather and paper making, chemical and light industry, metal and paint, medicine and medicine, etc.