Characteristics and Application of High Temperature Resistant Glass Sleeve
- By : Insulation Materials
The characteristics and applications of insualtion materials high temperature resistant glass sleeves are as follows:
1. Safety and environmental protection, protect workers’ health
The alkali-free glass fiber itself has strong tensile strength, will not wrinkle and break, is resistant to vulcanization, smoke-free, halogen-free, non-toxic, pure oxygen and non-combustible, and has good insulation characteristics. After being cured by organic silicone, it will further strengthen its safety and environmental protection performance and effectively protect Workers’ human health reduces the incidence of occupational diseases. Unlike asbestos products, it is extremely harmful to the human body and the environment.
2. Superior high temperature performance
The silicone structure on the surface of the high temperature resistant casing contains both “organic groups” and “inorganic structures”. This special composition and molecular structure make it combine the characteristics of organic matter with the function of inorganic matter. Compared with other polymer materials, its most outstanding feature is its high temperature resistance. The silicon-oxygen (Si-O) bond is the main chain structure, the bond energy of the CC bond is 82.6 kcal / mole, and the bond energy of the Si-O bond is 121 kcal / mole in the silicone, so It has high thermal stability and does not break or decompose the chemical bonds of molecules under high temperature (or radiation exposure). Silicones are not only resistant to high temperature, but also low temperature, and can be used in a wide temperature range. Whether it is chemical properties or physical mechanical properties, changes with temperature are very small.
3. Splash proof, multiple protection
In the smelting industry, the temperature of the medium in the electric furnace is extremely high, and it is easy to form high-temperature splashes (the same is true in the welding industry). After cooling and solidification, slag is formed on the pipe or cable, which will harden the rubber of the outer layer of the pipe or cable, and eventually Brittle fracture. Furthermore, it can damage unprotected equipment and cables. The multi-channel silicone-coated high-temperature bushing can achieve multiple safety protections. The maximum temperature resistance can be as high as 1300 degrees Celsius, which can effectively block high-temperature melting such as molten iron, molten copper, and molten aluminum. Splashing of objects to prevent damage to surrounding cables and equipment.
4. Thermal insulation, energy saving and consumption reduction, radiation resistance
In high-temperature workshops, the internal temperature of many pipes, valves or equipment is very high. If not covered with protective materials, it is easy to cause personnel burns or heat loss. Baite high temperature resistant bushing has better thermal stability than other polymer materials, and is resistant to irradiation and thermal insulation, preventing accidents, reducing energy consumption, and preventing the heat of the medium in the pipeline from being directly transferred to the surrounding environment And the temperature of the workshop is too high, saving the cost of cooling.
5. Moisture-proof, oil-proof, weather-proof, anti-pollution, prolong equipment life
The high temperature resistant casing has strong chemical stability. The silicone does not react to oil, water, acid and alkali. It can be used for a long time without aging within 260 ℃. The service life in natural environment can reach several decades. It can protect the pipes, cables and equipment in these occasions to the greatest extent, and greatly extend its service life.
6. Ozone resistance, voltage resistance, arc resistance, corona resistance
Because the surface is coated with organic silicone, its main chain is -Si-O-, and there is no double bond, so it is not easily decomposed by ultraviolet light and ozone. High temperature resistant bushings have good electrical insulation properties, and their dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity and surface resistivity are among the best in insulating materials, and their electrical properties are affected by temperature and frequency The impact is very small. Therefore, they are a stable electrical insulation material and are widely used in the electronics and electrical industries.
7. Flame retardant, reduce fire incidence and spread speed
If a flammable or toxic medium is transported in the pipeline, it will easily cause fire or casualty when leaking; the cable also often burns due to local high temperature; the high temperature resistant sleeve is woven with extremely high temperature resistant glass fiber, and the surface is added with silicone There are special raw materials such as appropriate flame retardants to make it have excellent flame retardancy. Even if a fire occurs, it can prevent the fire from spreading, and it can still protect the internal pipelines intact for a long time, providing sufficient time for the rescue of important information such as data and data.