Novel inorganic decoration base material plate and preparation method thereof

The present invention discloses a novel inorganic decoration base material plate and a preparation method thereof. The novel inorganic decoration base material plate is prepared from the following raw materials by weight: 45-50% of magnesium oxide, 15-20% of magnesium sulfate, 1-1.5% of a modifier, 5-10% of a filler, 1-5% of a reinforcing material, and the balance of water. According to the present invention, the magnesium sulfate is used to replace the magnesium chloride as the gelling material, such that the prepared base material plate almost does not contain chlorine ions; the mixture of citric acid, sodium citrate and sucrose is adopted as the modifier so as to adjust the condensation time and significantly increase the water resistance and the dampness resistance of the base material plate; and the prepared base material plate has characteristics of good waterproof performance, no moisture absorption efflorescence, high strength, cracking deformation resistance, good flexibility, good durability, significantly improved fireproof performance, no formaldehyde release during production and use processes, safety and environmental protection, and can be widely used as the base plates of fireproof plates, suspended ceiling plates, decorative plates, partition boards and other plates.