Plate for building and finishing

Abstract

The invention discloses a building or decorative sheet material with advantages of excellent waterproof and fireproof performances, high strength, and easy fabrication and construction, which comprises a paper-faced gypsum board and is characterized in that a glass fiber mat-containing magnesium board is equipped on the outer surface of the paper-faced gypsum board, wherein the glass fiber mat-containing magnesium board comprises an intermediate substrate formed by mixed binding material containing magnesium-oxychloride cement as main component, and a protective coating arranged on the outer surface of the intermediate substrate layer and formed by glass fiber mat. The inventive sheet material is easy to construct and is widely used in building and decoration fields.

Description

technical field [0001] The invention relates to a plate that can be used in the fields of construction and decoration. Background technique [0002] At present, all walks of life have higher and higher requirements for interior decoration. Users pay more and more attention to fireproof, waterproof and anti-deformation properties in terms of ceilings and partition walls. In terms of construction, they also require the use of new materials with light weight, high strength and environmental protection. . Existing decorative boards have poor fireproof and waterproof properties, such as commonly used wooden three-ply boards and five-ply boards, etc.; The intermediate substrate of gypsum board is gypsum cementitious material, and the protective layer is tough paper. Since paper is combustible, in terms of non-combustibility, paper-faced gypsum board is B1 grade; there is also a magnesium decorative board, the intermediate substrate layer It is composed of mixed cementitious mate...

AI Technical Summary

Problems solved by technology

Existing decorative boards have poor fireproof and waterproof properties, such as commonly used wooden plywood, five-ply board, etc.; some have insufficient strength and poor waterproof performance, such as ordinary gypsum board and paper-faced gypsum board, etc. The intermediate substrate of the gypsum board is gypsum cementitious material, and the protective layer is tough paper. Since the paper is combustible, in terms of non-combustibility, the paper-faced gypsum board is B1 grade; there is also a magnesium decorative board, the intermediate substrate layer It is composed of mixed cement with magnesium oxychloride cement as the main material. The protective layer includes kraft paper and glass fiber mesh cloth. The disadvantage of this kind of board is that the structure and manufacturing process are more complicated, and the fireproof and water resistance of kraft paper are poor. The flexural strength of the board is not high, and the permeability of the glass fiber mesh cloth is good. During the production, the intermediate matrix is ​​easy to seep out of the mesh cloth, making the surface of the board too smooth, and the surface adhesion is poor, which increases the cost of the subsequent decoration process. The degree of complexity and affect the effect of subsequent decoration (such as painting, painting, etc.)

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