What Is Soft Rubber?

Temperature resistance properties: 

Organic silicon products are silicon-oxygen (Si-O) bond as the main chain structure, the bond energy of C-C bond is 82.6 kcal/g molecule, the bond energy of Si-O bond in silicone is 121 kcal/g molecule, so the high thermal stability of silicone products. The chemical bonds of the molecule do not break or decompose at high temperatures (or radiation exposure). Silicones are resistant not only to high temperatures, but also to low temperatures, and can be used over a wide temperature range. Whether it is chemical or physical mechanical properties, temperature-dependent changes are small. 2.

Weathering resistance: 

The main chain of silicone products is -Si-O-, no double bonds exist, so it is not easily decomposed by ultraviolet light and ozone. Silicones have better thermal stability than other polymers and are more resistant to irradiation and weathering than other polymers. Silicone in the natural environment in the service life of up to decades.

Electrical Insulating Properties: 

All silicone products have good electrical insulation properties, their dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity and surface resistivity are among the best among insulating materials, and their electrical properties are little affected by temperature and frequency. Therefore, they are a stable electrical insulation materials, are widely used in electronics, electrical industry. In addition to excellent heat resistance, silicone also has excellent water repellency, which is the electrical equipment in the wet condition of the use of high reliability.

Physiologically inert: 

Polysiloxanes are among the most inactive compounds known. They are very resistant to biological aging, have no rejection reaction with animal bodies, and have good anticoagulant properties.

Low surface tension and low surface energy: 

The main chain of silicone is very flexible, and its intermolecular force is much weaker than that of hydrocarbons, so it has lower viscosity, weaker surface tension, less surface energy and stronger film-forming ability than hydrocarbons of the same molecular weight. This low surface tension and low surface energy is the main reason why it is used in various applications: hydrophobicity, defoaming, foam.