Novel inorganic decoration base material plate and preparation method thereof

Abstract

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.

Description

technical field [0001] The invention relates to a novel inorganic decorative substrate plate and a preparation method thereof. Background technique [0002] The glass magnesium board is obtained by mixing magnesium oxide, magnesium chloride and water in a reasonable ratio, and then modifying it with admixtures. It has the characteristics of excellent fire resistance, no cracking, no burning, high strength, light weight, convenient construction and long service life. It can be used as thermal insulation building wall panels, door core panels, ceiling panels, furniture, packing boxes, etc. [0003] However, the water resistance of the glass magnesium board is poor, the water resistance coefficient is between 0.4 and 0.5, and the mass percentage of chloride ions is as high as 6 to 8%. In the case of long-term rainy weather or high humidity in the air, the surface of the glass magnesium board will experience severe halogen and frost return, and warping and deformation will occ...

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Problems solved by technology

[0003] However, the water resistance of the glass magnesium board is poor, the water resistance coefficient is between 0.4 and 0.5, and the mass percentage of chloride ions is as high as 6 to 8%.

In the case of long-term rainy weather or high humidity in the air, the surface of the glass magnesium board will experience severe halogen and frost return, and warping and deformation will occur, the product strength will be reduced, and the service life of the product will be shortened. limit its application

In recent years, although the modification technology of magnesium oxychloride products has been improving day by day, the phenomenon of returning halogen and returning frost still exists

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