Little knowledge about functional flame retardant fabrics
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Flame retardant fabric flame retardant clothing discharge arc clothing fire fighting clothing
Let me introduce to you the knowledge of aramid flame retardant fabrics. The Nomex limiting oxygen index is 28, which has a high decomposition temperature and will not melt under high temperature conditions. Nomex has good thermal stability. After 100 hours of continuous use at a high temperature of 260°C, its strength can still maintain 65% of its original strength. It can still maintain 50% of its original strength after being used for 7 days at a high temperature of 304°C. Nomex also has excellent chemical resistance, that is, resistance to acids, alkalis, oxidants, and organic solvents. It has excellent radiation resistance and has almost no loss of strength under exposure to external rays and Y-rays of a certain intensity. NomexⅢA is available in white silk and liquid-dyed colored silk. Among them, white silk dyeing has passed the test. It is currently used in industrial flame-retardant clothing, arc protection clothing, fire-fighting clothing, and welding and furnace work clothes. It is permanently flame retardant and has excellent thermal stability. This fiber is used in the protective clothing of the US military. With the wide application of Nomex fiber, a series of improved Nomex products have been developed. Among them, NomexIIIA is widely used, and its composition is 93% Nomex, 5% Kevlar and 2% antistatic fiber. Kevlar is added to increase the heat, shrinkage and shock resistance of clothing under high-temperature flames and arc flash explosions, and anti-static fiber is added to reduce static electricity and improve wearing comfort. Nomex, a meta-aramid fiber, also known as aramid 1313, is a good high-temperature resistant flame-retardant fiber. It can maintain about 80% of its original strength at 200°C and can be used continuously for 100 hours at 260°C. h can still maintain 65% to 70% of the original strength, and form a barrier between the human body and clothes, reduce the heat transfer effect, provide protection and acid resistance, and also have good stability against alkali. Due to its outstanding performance and With broad market prospects, various countries have conducted research and development on heat resistance and electrical properties. It is widely used in the military industry and electrical industry. It is an excellent H-class insulating material. It is characterized by good heat resistance and high strength. Its performance can remain stable for a long time at a temperature of 250°C.
：Textile
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