Introduction of magnesium hydroxide as an additive for fireproof coatings
Fire-proof Material, also known as flame retardant coating, is one of the varieties of special coatings and one of the important members of fireproof building materials. Coating Magnesium hydroxide Flame retardant with excellent performance on the surface of the substrate can not only play a decorative role, but also can prevent corrosion, rust, acid and alkali resistance, smoke and so on. More importantly, when a fire occurs, the fireproof coating can prevent the spread of the flame, control the development of the fire, and play an effective role in protecting the internal structure.
The material of flame retardant system is the core of fire retardant coatings, and its performance has a great influence on the performance of fire retardant coatings, while inorganic flame retardants are commonly used fillers in fire retardant coatings, such as aluminum hydroxide and magnesium hydroxide, which have thermal stability. And low toxicity, no corrosive gas, long-lasting flame retardant effect and so on.
However, due to the large filling amount of aluminum hydroxide in the polymer and the influence of its inherent properties, it will reduce the formability, mechanical properties and electrical properties of the polymer. Magnesium hydroxide Flame retardant not only has the three major functions of flame retardant, smoke elimination and filling, but also decomposes to produce water and take away a large amount of heat when heated. At the same time, the release of water vapor can also dilute the combustible gas around the matrix material to achieve the purpose of flame retardancy. In addition, the decomposition of magnesium oxide will also cover the surface of the substrate, playing a certain role in isolating oxygen.
Because of the high-rise, clustering, large-scale industry and the wide application of organic synthetic materials, people attach great importance to fire prevention, but the method of coating fire prevention is relatively simple and adaptable, so it is used in public buildings, vehicles, aircraft, ships, ancient buildings and cultural relics protection, electrical cables, aerospace and so on.
With the addition of magnesium hydroxide of different properties to the fireproof coating, better application results can be achieved in different fields by using Magnesium hydroxide Flame retardant. The amount of Magnesium hydroxide Flame retardant is increasing at a rate of 20% per year, which has a broad market prospect.
