Novel magnesian cementing material and preparation method for magnesian cementing plate prepared from novel magnesian cementing material

Abstract

The invention relates to the field of composite building decoration materials, in particular to a magnesian cementing material and a preparation method for a magnesian cementing plate prepared from the magnesian cementing material. The magnesian cementing material is mainly prepared from 100 parts of magnesium oxide powder, 15-25 parts of slag powder, 6-7 parts of Al2O3 packing, 45-60 parts of composite sulfate, 25-32 parts of wood chips, 5-7 parts of perlite, 0.2-1 part of citric acid and 0.5-1 part of composite phosphate. Raw materials of magnesium oxysulfate cement are mixed together, water is added in the raw materials, stirring is performed until the mixture is uniform, and mixed slurry is prepared; the mixed slurry is composited with glass fiber cloth through a flowing slurry rolling method, and then the magnesian cementing plate is prepared. According to the novel magnesian cementing material and the preparation method for the magnesian cementing plate prepared from the novel magnesian cementing material, the advantages of being high in anti-bending strength, small in volume weight, waterproof, good in toughness and the like are achieved.

Description

technical field [0001] The invention relates to the field of composite building decoration materials, in particular to a novel magnesium gelling material and a preparation method for the magnesium gelling board. Background technique [0002] There are generally two types of traditional building decoration panels, one is produced by inorganic cementitious materials, such as gypsum, Portland cement, and sulphoaluminate cement, and the other is organic cementitious materials (such as urea-formaldehyde resin and other resins). It is produced by pressing plant fibers. [0003] Existing building decoration panels all have the following technical defects to varying degrees: [0004] (1) Paper-faced gypsum board is made by adding a small amount of adhesive, fiber, foaming agent, etc. to building gypsum, mixing it with water, pouring it continuously between two layers of protective paper, and then rolling, solidifying, cutting, and drying; board The thickness is 9-25 mm, the dry bu...

AI Technical Summary

Problems solved by technology

[0004] (1) Paper-faced gypsum board is made by adding a small amount of adhesive, fiber, foaming agent, etc. to building gypsum, mixing it with water, pouring it continuously between two layers of protective paper, and then rolling, solidifying, cutting, and drying; board Thickness 9-25mm, dry bulk density 750-850kg / m3, poor water resistance, easy to pulverize and mildew in wet conditions, only suitable for indoor use

[0005] (2) Portland cement is a plate made of mixed materials, and the bulk density is also large, so it cannot be used to manufacture thin plates with small thickness

[0007] (4) There are still free formaldehyde and other organic volatiles in ordinary plywood, fiberboard, and particleboard, which will have unfavorable health factors when used for interior decoration, and the fire rating cannot reach Class A

[0008] (5) Magnesium oxychloride cement board can be light, high-strength, and thin, but its toughness is poor, it is easy to return halogen, and corrode fasteners

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