| 摘要 |
A flame retardant and heat resistant liquid sodium silicate composition is provided to improve drying property, water fastness and whitening, to reduce the reduction of heat resistance due to the lowering of a melting point of an inorganic material at a high temperature. A flame retardant and heat resistant liquid sodium silicate composition comprises 0.5-1 weight% of aluminum hydroxide; 1-2 weight% of calcium carbonate; 1-2 weight% of magnesium hydroxide; 0.5-1 weight% of borax; 1-5 weight% of lithium silicate; 2-5% of porous silica; 0.1-1 weight% of an additive; 75-85 weight% of liquid sodium silicate solution KS3; and 6.4-8 weight% of water. The additive is a mixture comprising a surfactant and at least two kinds of aminosilanes. The surfactant is selected from sodium hexasulfonate, sodium hexametaphosphate, ammonium acrylate copolymer, polycarboxylic acid alkynol ammonium salt, and polysiloxane emulsion.
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