Inorganic mineral polymeric fiber crystal halogen-free flame-retardant powder

Abstract

The invention discloses inorganic mineral polymeric fiber crystal halogen-free flame-retardant powder, which is prepared by adding expandable graphite with the fineness of 200-320 meshes, expanded vermiculite powder, aluminum hydroxide, silicon micro-powder, zirconium silicate powder, magnesium hydroxide, silicon nitride, diantimony trioxide, zinc borate, rutile titanium dioxide, sepiolite powderand zeolite powder into a stirrer according to a component ratio and stirring until the materials are uniform. According to the invention, the fireproof material with lasting flame retardance, insulation, heat insulation and high-temperature resistance is non-toxic, is white crystal powder, has no peculiar smell and is stable in gas, so that the polymer is separated from a heat source, and the flame retardant of the system is reduced; the temperature promotes dehydration and carbonization, free radicals generated by combustion can be combined to interrupt a chain reaction, and the functions offlame retardance, incombustibility, no open fire, no smoke abatement, no toxicity and no volatilization are achieved, so that the product is separated from a heat source to achieve the effects of nonflammable and noncombustible objects; and secondary harm of halogen to the environment is avoided, and the health of people is prevented from being influenced after the halogen is inhaled into the human body.

Description

【Technical field】 [0001] The invention relates to the field of flame-retardant powder, in particular to an inorganic mineral polymer fiber crystal halogen-free flame-retardant powder. 【Background technique】 [0002] Flame retardant powder is mainly used in furniture, building materials and transportation. Adding flame retardant powder does not make the material completely resistant to fire, but it can reduce the occurrence of fire and win valuable escape time for people caught in the fire. In the fire space, due to the accumulation of flammable gas and heat, a "flash" phenomenon may occur - all kinds of flammable substances are on fire at the same time within 1 to 2 seconds; especially in the tunnel, due to the The space is small, the air fluidity is poor, and the density of vehicles is high. Once a fire occurs, the temperature of the inner and outer walls and steel structures will rise. The rise in temperature will cause cracks in the tunnel walls, resulting in loss of str...

AI Technical Summary

Problems solved by technology

However, when a fire occurs, such halogen-containing flame-retardant materials will produce a large amount of smoke and toxic corrosive hydrogen halide gas, which will cause secondary harm to the environment, and will affect people's health after being inhaled into the human body; and most tunnels They are all "arched" and have poor air flow. When a fire occurs, they are particularly prone to smoke accumulation, while halogen-containing polymers or flame-retardant mixtures combined with halogen-containing flame retardants will volatilize more harmful substances. ; thereby affecting the immediate rescue of follow-up firefighters, thereby threatening the life safety of trapped persons trapped in the tunnel; for this reason, the patent of the present invention proposes an inorganic mineral polymer fiber crystal halogen-free flame retardant powder