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Brief introduction of silicone fire retardant cable sheath

Author:admin Addtime:2019-11-23 11:52:49 Click:
The special fireproof jacket for flame retardant and heat-resistant high temperature cable is made of high quality alkali-free glass fiber yarn and then coated with organic high temperature resistant silicone resin. Let us explain the advantages of high temperature resistant fireproof jacket.
The fireproof jacket for flame retardant and heat resistant high temperature cable has the following characteristics:
 1. Safe and environmentally friendly, protect the health of workers. Alkali-free glass fiber itself has strong tensile strength, no wrinkle breakage, resistance to vulcanization, smokeless, halogen-free, non-toxic, pure oxygen, non-combustible, good insulation properties, and then cured by organic silica gel. It will further enhance its safety and environmental performance, effectively protect workers' human health and reduce the incidence of occupational diseases. Unlike asbestos products, it is extremely harmful to the human body and the environment.
 2, high temperature resistance performance, flame retardant heat insulation, high temperature resistant cable, special fireproof jacket surface, the organic silicon structure contains both "organic group" and "inorganic structure". This special composition and molecular structure make it collect organic matter. The combination of properties and inorganic functions. Compared with other polymer materials, its most prominent is high temperature resistance. The silicon-oxygen (Si-O) bond is the main chain structure, the bond energy of the C-C bond is 82.6 kcal / gram, and the bond energy of the Si-O bond is 121 kcal / gram in the silicone, so Its thermal stability is high, and the chemical bonds of molecules at high temperatures (or radiation irradiation) do not break or decompose. Silicone is not only resistant to high temperatures, but also resistant to low temperatures and can be used over a wide temperature range. Whether it is chemical or physical mechanical properties, it varies little with temperature.
3, anti-splash, multiple protection In the smelting industry, the temperature of the medium in the electric furnace is extremely high, it is easy to form high-temperature splash (also in the electric welding industry), after the cooling and solidification, the slag is formed on the pipeline or cable, which will make the pipeline or cable The outer layer of rubber hardens and eventually becomes brittle. In addition, it damages unprotected equipment and cables. After multiple silicone-coated fire tubes, it can achieve multiple safety protections. The maximum temperature resistance can reach 1300 degrees Celsius, which can effectively block high temperature melts such as molten iron, molten copper and molten aluminum. Splash to prevent damage to surrounding cables and equipment.
4, thermal insulation, energy saving, radiation resistance In high temperature workshops, many pipes, valves or equipment, the internal temperature is very high, if not covered with protective materials, it is easy to cause burns or heat loss. The high temperature resistant casing has better thermal stability than other polymer materials and is resistant to radiation and thermal insulation, preventing accidents, reducing energy consumption, and preventing the heat of the medium in the pipeline from being directly transmitted to the surrounding environment. The temperature is too high, saving cooling costs.
5, moisture-proof, oil-proof, anti-climate aging, anti-pollution, extend the service life of fire-retardant heat-insulating high-temperature cable special fire-proof jacket has strong chemical stability, silicone oil, acid, alkali and other substances can not afford The reaction, within 260 °C, can be used for a long time without aging. The service life in the natural environment can reach several decades, which can protect the pipelines, cables and equipment in these occasions to the greatest extent and greatly extend the service life.
6, ozone resistance, voltage, arc resistance, corona resistance Because the surface is coated with organic silica gel, its main chain is -Si-O-, no double bonds exist, so it is not easily decomposed by ultraviolet light and ozone. High temperature resistant bushings have good electrical insulation properties, and their dielectric loss, withstand voltage, 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 small. Therefore, they are a stable electrical insulating material and are widely used in the electronics and electrical industries.
 

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