Magnesium oxide plate and manufacturing process thereof

Abstract

The invention discloses a magnesium oxide plate and a manufacturing process thereof. The magnesium oxide plate disclosed by the invention is characterized by being prepared through mixing the following mixed raw materials in parts by weight: 80-100 parts of magnesium oxide, 20-30 parts of anhydrous magnesium chloride, 10-20 parts of foaming agent, 20-30 parts of aluminum silicate fiber, 5-10 parts of saw dust, 10-15 parts of coal ash, 8-12 parts of glass magnesium board disintegrated powder, 1.5-5 parts of non-woven fabric, and 6-8 parts of water. The magnesium oxide plate is manufactured by adding the raw materials in the parts by weight into mixing equipment and uniformly mixing the raw materials to prepare a base stock, introducing the base stock into a mold, extruding the base stock by using extrusion equipment, then molding the extruded base stock, and air-drying the molded plate. The magnesium oxide plate disclosed by the invention meets AQ1 grade safety and performance requirements; inspection according to GB24-2006 standards proves that the burning performance of the magnesium oxide plate meets A1 grade requirements; the magnesium oxide plate is smooth in surface, good in water resistance, can be applied to exterior wall decoration, and greatly expands the application space of a glass fiber and magnesium fire-proof plate.

Description

technical field [0001] The invention relates to a plate, in particular to a magnesium oxide plate and a manufacturing process thereof. Background technique [0002] Magnesium oxide board is a new type of multifunctional building material. Because it has the light weight, flexibility and reprocessing performance of wood-based organic boards, and has the fire resistance and water resistance of inorganic boards, it can be used in walls, ceilings, and floor linings. It is used in the decoration of boards and other parts with fire protection requirements. The main components of the current magnesium oxide board are glass fiber mesh cloth (the main source of the strength of the board), magnesium oxide, magnesium chloride, perlite, filling fiber and modified additives. However, the magnesium oxide board currently used has problems such as moisture absorption and halogen return of the board, embrittlement of the board, etc., which affects the quality of the product, and the fire an...

AI Technical Summary

Problems solved by technology

However, the magnesium oxide board currently used has problems such as moisture absorption and halogen return of the board, embrittlement of the board, etc., which affects the quality of the product, and the fire and heat insulation performance is also poor.

Moreover, the magnesium oxide board has the defects of slightly poor waterproof performance and insufficient strength. Therefore, it cannot be used as an exterior wall decoration, which limits the wide application of the product.

Images