1 thought on “Use of flame retardant”

  1. The flame retardant can not only prevent flame retardant, but also prevent smoking, no dripping objects, no toxic gases,
    Fire mechanism, fire resistant or fireproof agent: functional auxiliary agent that gives flammable polymers; it is mainly suitable for mortar, cement component products with flame retardant demand, etc., delayed or prevent the construction of the building. Make it over time, and it is difficult to ignite. The fabric can achieve strong flame retardability after being soaked by this product.
    The flame retardant is played by several mechanisms, such as heat absorption, coverage, suppression of chain reactions, and asphyxia without gas. Most flame retardants achieve flame retardant through a few mechanisms.
    The heat absorption
    Any calories released in any burning in a short time are limited. If you can absorb a part of the heat released in the fire source in a short time, the flame temperature will be reduced, radiation, radiation, and radiation. The heat of the combustion surface and action to crack the combustible molecules that have been gasified into free radicals will be reduced, and the combustion response will be suppressed to a certain extent. Under high temperature conditions, the flame retardant has a strong heat absorption reaction, absorbing part of the heat released by combustion, reducing the temperature of the surface of the combustible material, effectively inhibiting the production of combustible gases, and preventing the spread of combustion. The flame retardant mechanism of flame retardant is to improve the heat capacity of the polymer to absorb more heat before reaching the thermal decomposition temperature, thereby improving its flame retardant performance. This type of flame retardant gives full play to the characteristics of a large amount of heat absorption when combining water steam to improve its own flame retardant ability.
    In coverage
    After adding flame retardants to the combustible materials, the flame retardant can form a glass or stable foam covering layer at high temperature, isolate oxygen The role of foreign restrictions is achieved to achieve flame retardant. If an organic obstacle -induced flame retardant is heated, a linked solid substance or carbonization layer that is more stable can be produced. On the one hand, the formation of the carbon layer can prevent the polymer from further thermal solution, and on the other hand, it can prevent the internal thermal decomposition of the producer from entering gas to participate in the combustion process.
    The inhibitory chain reactions
    Chemores to maintain the burning theory according to the burning chain reaction theory. The flame retardant can act in the gas -phase combustion area, capture the free radicals in the combustion response, so as to prevent the spread of flames, reduce the flame density of the combustion area, and eventually reduce the burning reaction speed until it is terminated. When the polymer is heated, the flame retardant also volatilizes. At this time, the halogen -containing flame retardant and thermal decomposition products are also in the gas burning area at the same time, and the flame retardant can capture the free radicals in the combustion response, thereby preventing the spread of flames, reducing the flame density of the combustion area. Until end.
    The asphyxia without gas
    The flame retardant decomposes the no gas gas when heated, and the concentration of the combustible gas that decomposes the combustion to below the lower limit of the combustion. At the same time, it also has a diluted effect on the oxygen concentration in the combustion area, preventing the combustion from continuing to achieve flame retardant.

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