A kind of fire prevention board and preparation method thereof
A fireproof board and gypsum board technology, which is applied in the manufacture of tools, covering/lining, construction, etc., can solve the problems of poor fireproof performance and achieve high fire resistance temperature and excellent fireproof performance
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[0036] Simultaneously, the present invention also provides the preparation method of above-mentioned fireproof board, comprising:
[0037] S1, placing the gypsum slurry and the metal foil in the forming mold, so that the gypsum slurry submerges the metal foil;
[0038] The thickness of the metal foil is 0.05-0.15mm, and a plurality of meshes are opened on the metal foil; the density of the meshes on the metal foil is 2-13 / cm2;
[0039] S2. Dry and press the gypsum slurry and the metal foil in the forming mold to obtain the fireproof board.
[0040] Wherein, the gypsum slurry used can be various compositions commonly used in the prior art, for example, the starch of 0.4-1.2wt%, the glass fiber of 0.2-1.0wt%, the foaming agent of 0.04-0.15wt%, 3 - 8wt% vermiculite, 1-4wt% bentonite, and the rest gypsum mixed with water. It is preferred to use 0.4-0.7wt% starch, 0.3-0.6wt% glass fiber, 0.04-0.15wt% foaming agent, 5-7wt% vermiculite, and 2-3wt% bentonite, and the balance of gyps...
Embodiment 1
[0058] This embodiment is used to illustrate the fireproof board disclosed in the present invention and its preparation method.
[0059] Such as image 3 As shown, a rectangular aluminum alloy with a thickness of 0.1 mm is used as the metal precursor 21 . A plurality of slits 22 separated from each other are cut on the metal precursor 21 . In the extending direction of the slits 22 , the multiple slits 22 are collinear; in the direction perpendicular to the slits 22 , the multiple slits 22 are parallel to each other. In the direction perpendicular to the slits 22, two adjacent slits 22 are staggered from each other. Moreover, the length of the slits 22 is 10 mm, and the distance between adjacent slits 22 is 2 mm.
[0060] Then the metal precursor 21 formed with the slit 22 is stretched in a direction perpendicular to the slit 22 to obtain the metal foil 2 .
[0061] see Figure 4 , a rectangular mesh 20 is formed on the metal foil 2, wherein the density of the mesh 20 is ...
Embodiment 2
[0066] This embodiment is used to illustrate the fireproof board disclosed in the present invention and its preparation method.
[0067] A rectangular aluminum alloy with a thickness of 0.1 mm was used as the metal precursor. A plurality of mutually separated slits are cut in the metal precursor. In the extending direction of the slits, the multiple slits are collinear; in the direction perpendicular to the slits, the multiple slits are parallel to each other. In the direction perpendicular to the slits, two adjacent slits are staggered from each other. In addition, the length of the slits is 15 mm, and the distance between adjacent slits is 5 mm.
[0068] Then stretch the metal precursor after the slit is formed to form a metal foil, and form a rhombic mesh at the slit to obtain the metal foil.
[0069] see Figure 5 , the metal foil includes a plurality of first substrates 23 arranged in parallel and a plurality of second substrates 24 arranged in parallel. The intersec...
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Abstract
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