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Flame retardants

 

Fire safety requirements are increased for modern materials. It is easier to prevent ignition of a material than to solve consequences of fire. So, special retardants or impregnations should be used in materials production.

Flame retardant is a substance or mixture which is added to material to reduce flammability. Retardants decompose with formation of noncombustible compounds and/or prevent the degradation of the material with release of combustible gases. In addition decomposition reaction of some flame retardants is endothermic, which leads to cooling of the substrate to a temperature below the flash point.
 
Flame retardants are widely used in plastic, textile, wood and paper products, coatings and many other materials. In our polymer century when plastic replaces paper, glass, metal and wood, plastics industry occurs more than 75% of world consumption of flame retardants.

Flame retardants slow the ignition and combustion because of containing of burning moderator (ammonium phosphate, borax, ammonium chloride, synergists (substances that enhance the action of the main moderator) and stabilizers that limit consumption of moderator.

The way of addition of flame retardants depends on type of material you want to protect. Wood and textile is impregnated by flame retardant mixture or is covered by ink containing flame retardant. To synthetic polymers retardants are added at the stage of their preparation, during their further processing or to the finished product. To the varnish materials flame retardants are added during their production.

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