Heat-insulation plate bonded with rock wool daub

Abstract

The invention discloses a heat-insulation plate bonded with rock wool daub, and relates to a building material. The heat-insulation plate comprises an adhesive sprayed rock wool layer, a glass fiber layer I, a glass fiber layer II, a daub layer I and a daub layer II. The glass fiber layer I is arranged on the upper surface of the adhesive sprayed rock wool layer, the glass fiber layer II is arranged on the lower surface of the adhesive sprayed rock wool layer, the cement gum layer I is arranged on the upper surface of the glass fiber layer I, and the daub layer II is arranged on the lower surface of the glass fiber layer II. The adhesive sprayed rock wool layer is a rock wool plate formed by pressing after adhesive is sprayed on cotton-wool-shaped rock wool; urea-formaldehyde water is sprayed on the upper surface of the glass fiber layer I, then dry cement powder is sprinkled in the urea-formaldehyde water on the upper surface of the glass fiber layer I, and then the glass fiber layer I with the urea-formaldehyde water and the dry cement powder is pressed to form the cement gum layer I; and urea-formaldehyde water is sprayed on the lower surface of the glass fiber layer II, then dry cement powder is sprinkled in the urea-formaldehyde water on the lower surface of the glass fiber layer II, and then the glass fiber layer II with the urea-formaldehyde water and the dry cement powder is pressed to form the daub layer II. The heat-insulation plate has the advantages of light weight, low cost, high compressive strength, good water resistance, fire resistance and heat-insulation effect, long service life and environmental protection.

Description

technical field [0001] The invention relates to a building material, in particular to a building thermal insulation board. Background technique [0002] At present, most of the insulation materials for building exterior walls and roofs use organic insulation materials such as polystyrene and polyurethane with a thickness of 35 mm. This organic thermal insulation material also has the following main disadvantages: 1. The production cost of organic material boards such as polyplastic heat insulation boards is high; For the board seam, the stress changes of the two adjacent boards are reversed, the greater the deformation stress, the greater the force to squeeze or pull the board seam, and the easier it is to cause the board seam to crack; 3. The thermal conductivity of plastic heat insulation boards and other organic material boards is quite different from that of surface mortar. When the temperature changes, the greater the difference in deformation, the board is prone to c...

AI Technical Summary

Problems solved by technology

This organic thermal insulation material also has the following main disadvantages: 1. The production cost of organic material boards such as polyplastic heat insulation boards is high; For the board seam, the stress changes of the two adjacent boards are reversed, the greater the deformation stress, the greater the force to squeeze or pull the board seam, and the easier it is to cause the board seam to crack; 3. The thermal conductivity of plastic heat insulation boards and other organic material boards is quite different from that of surface mortar. When the temperature changes, the greater the difference in deformation, the board is prone to cracks; 4. Polyplastic heat insulation boards and other organic materials Due to the large change of the material board's own stress, it is easy to cause cracking and swelling of the outer surface layer; 5. The organic thermal insulation material is flammable, and it is difficult to put out fire after it catches fire, and produces a large amount of toxic and harmful gases, which will cause serious casualties and property losses. There are potential safety hazards; 6. Organic thermal insulation materials are not sound-proof and cannot effectively shield external noise; 7. Organic material boards such as polyplastic heat insulation boards have poor water resistance, are prone to aging, and have a short service life

At present, most of the inorganic insulation boards on the market use inorganic materials, such as slag wool, rock wool, glass wool, etc. It is loose and the construction strength is not enough. When it is used as a roof insulation material, the construction is easily damaged by trampling, which reduces the insulation effect and roof safety; when it is used as a wall insulation material, it has poor wind resistance and high water absorption during installation. Weather, easy to fall off, causing safety accidents

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