Introducing the characteristics of Automotive Wiring Harness Protection Sleeve

I have introduced to you the raw materials of Cable Sleeve before. Today I will introduce to you in detail the characteristics of Automotive Wiring Harness Protection Sleeve. The basic structural unit of the Braided Sleeve is composed of silicon-oxygen links, and the side chains are made of silicon. Atoms are attached to various other organic groups. Therefore, the structure of the Braided Sleeve contains both "organic groups" and "inorganic structures". This special composition and molecular structure allows it to combine the characteristics of organic matter and the function of inorganic matter. Compared with other polymer materials, the most outstanding properties of Braided Sleeve are:

1. Weather resistance
The main chain of Braided Sleeve is -Si-O-, and there are no double bonds, so it is not easily decomposed by ultraviolet light and ozone. Cable Sleeve have better thermal stability, radiation resistance and weather resistance than other polymer materials. The service life of Cable Sleeve in the natural environment can reach decades.
2. Temperature resistance characteristics
The Braided Sleeve has a main chain structure of silicon-oxygen (Si-O) bonds. The bond energy of the C-C bond is 82.6 kcal/gram molecule. The bond energy of the Si-O bond in the Cable Sleeve is 121 kcal. / molecule, so the thermal stability of the Braided Sleeve is high, and the chemical bonds of the molecules will not break or decompose under high temperature (or radiation exposure). Cable Sleeve are not only resistant to high temperatures, but also to low temperatures and can be used in a wide temperature range. Whether it is chemical properties or physical and mechanical properties, the changes with temperature are very small.
3. Electrical insulation performance
Braided Sleeve 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 affected by temperature and frequency. The impact is minimal. Therefore, they are stable electrical insulating materials and are widely used in the electronic and electrical industries. In addition to excellent heat resistance, Cable Sleeve also have excellent water repellency, which guarantees the high reliability of electrical equipment when used in wet conditions.
4. Low surface tension and low surface energy
The main chain of the Cable Sleeve is very flexible, and its intermolecular force is much weaker than that of hydrocarbons. Therefore, it has lower viscosity, weaker surface tension, smaller surface energy, and stronger film-forming ability than hydrocarbons of the same molecular weight. This low surface tension and low surface energy are the main reasons why it has many applications: hydrophobic, defoaming, foam stabilization, anti-sticking, lubrication, glazing and other excellent properties.
5.Physiological inertia
Silicones are some of the most inactive compounds known. They are very resistant to biological aging, have no rejection reaction with animal bodies, and have good anticoagulant properties.