Zehui Lecture Hall: coating to fire, the first choice of magnesium hydroxide
The use of coating can be said to be very wide, general coating is required to have fire performance, that is, fire retardant coating.Fire retardant coating is also called flame retardant coating, is a new type of coating, with energy saving, low pollution and many other advantages, now has become a recognized environmental protection and energy saving coating.So what additives are used in fireproof coatings?Below follow xiaobian to understand together.Flame retardant is the core of fire retardant coating, flame retardant is divided into organic flame retardant and inorganic flame retardant, we mainly say inorganic flame retardant, inorganic flame retardant mainly magnesium hydroxide, aluminum hydroxide and so on, they have thermal stability, non-toxic, flame retardant and other excellent performance.Magnesium hydroxide is the best additive in these flame retardant products. When magnesium hydroxide is heated, it releases bound water, which absorbs a lot of latent heat and thus has the effect of flame retardant.Magnesium hydroxide particle size distribution is uniform, adding to the product has little effect on mechanical properties of the product.Magnesium hydroxide has high flame retardant efficiency, strong smoke suppression ability and low hardness, which will not damage the equipment.Compared with aluminum hydroxide, magnesium hydroxide has higher cost performance and can greatly reduce the cost of enterprises.At present, magnesium hydroxide flame retardant dosage is gradually increasing every year, the use is more and more extensive, broad market prospects.Fire retardant coating is generally used on the surface of steel structure substrate, which can reduce the flammability of steel surface and block the rapid spread of fire. It is widely used in buildings, vehicles, aircraft, ships, cables and other aspects.Therefore, adding magnesium hydroxide as flame retardant in coating can achieve better application effect.According to xiaobian, magnesium hydroxide flame retardant is more widely used in foreign countries. For example, foreign houses require wall materials to add magnesium hydroxide. The roofs of airports and supermarkets also use magnesium hydroxide flame retardant materials to keep warm in winter and heat insulation in summer.With the improvement of people’s living standard, various domestic industries have gradually begun to use magnesium hydroxide flame retardant.It can be seen that the use of magnesium hydroxide is very many, with the introduction of environmental protection policies, magnesium hydroxide as an environmental retardant, its demand will be more and more.