| 摘要 |
PURPOSE: A method for preparing inorganic flame retardants is provided to avoid poisonous gas in the combustion, to ensure high heat resistance and absorption resistance. CONSTITUTION: A method for preparing inorganic flame retardants comprises a step of blending primary inorganic components and inorganic chemicals in a weight ratio of 1:1-1:5. The primary inorganic component is prepared by: heating 60-70 weight% of a mineral component, 10-30 weight% of dolomite and 10-30 weight% of natural quartz; and powdering the heat-treated material. The inorganic chemical is obtained by: heating 5-15 weight% of sodium nitrate, 10-30 weight% of silica, 10-20 weight% of alumina, 10-20 weight% of silicon dioxide, 20-40 weight% of borax, and 5-10 weight% of silicate; and making the heat-treated material aqueous.
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