Flame-retardant sound-absorbing rock-wool composite board

Abstract

The invention discloses a flame-retardant sound-absorbing rock-wool composite board. The composite board has the characteristics as follows: a protective layer is attached to the upper surface of the rock wool, and a net rack is bond to the lower surface of the rock wool; the upper surface of the protective layer is coated with a waterproof layer; the net rack penetrates through the rock wool and the protective layer and is connected with the waterproof layer; the thickness of the rock wool is 60-150 mm; a plurality of holes without penetrating through the rock wool are formed in the surface which is bond to the protective layer; the protective layer is made from glass fibers, and the thickness of the protective layer is 2-5 mm; a plurality of straight grooves are formed in the protective layer; and the waterproof layer is made from polymer waterproof mortar, and the thickness of the waterproof layer is 10-20 mm. The composite board has not only excellent thermal-insulation and flame-retardant effects but also favorable sound-absorbing function; at the same time, the straight grooves and the holes designed in the composite board can improve the sound-absorbing effect of the composite board remarkably; and the net rack penetrates through the rock wool and the protective layer, so that the tensile strength of the composite board can be reinforced effectively, and the service life of the composite board is prolonged indirectly.

Description

technical field [0001] The invention relates to a composite material for construction, in particular to a flame-retardant and sound-absorbing rock wool composite board. Background technique [0002] Existing rock wool composite panels include polyurethane edge-sealed rock wool composite panels and steel belt edge-sealed rock wool composite panels. Due to the use of combustible polyurethane materials, the polyurethane edge-sealed rock wool composite board has insufficient fire resistance; and the steel-striped edge-sealed rock wool composite board has large gaps between the boards after installation, and the thermal insulation effect is poor. At present, bare rock wool boards are mostly used as insulation materials for building curtain walls in the market. Rock wool is made of fiber materials. Because the fibers are afraid of water and moisture, ordinary rock wool boards do not have the effect of moisture and mildew resistance when used. In addition, the tensile strength of ...

AI Technical Summary

Problems solved by technology

Due to the use of combustible polyurethane materials, the polyurethane edge-sealed rock wool composite board has insufficient fire resistance; and the steel-belt edge-sealed rock wool composite board has a large gap between the boards after installation, and the thermal insulation effect is poor.

At present, bare rock wool boards are mostly used as insulation materials for building curtain walls in the market. Rock wool is made of fiber materials. Because the fibers are afraid of water and moisture, ordinary rock wool boards do not have the effect of moisture and mildew resistance when used. In addition, the tensile strength of ordinary low-density rock wool on the market is very low, which cannot meet the strength requirements of the project. The strength of high-density rock wool is high, although it can meet the strength requirements of the project, but the manufacturing cost is high, and the sound-absorbing effect is significantly weakened

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