A fire door filling material and its preparation method
A technology for filling materials and fire doors, which is applied in the field of fire doors, can solve the problems of unfavorable environmental protection, improvement of flame retardant performance, low fire resistance temperature of fire door core board materials, etc., and achieves convenient use and installation, good fire prevention effect and low density Effect
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Embodiment 1
[0039]The fire door filling material of this embodiment is made of the following raw materials: 1 kg of magnesium chloride, 3.5 kg of magnesium oxide, 10 kg of perlite, and 2 kg of water. The particle size of magnesium oxide is 400 mesh, and the particle size of perlite is 25 mesh.
[0040] The preparation method of the fire door filling material of the present embodiment comprises the steps:
[0041] 1) adding magnesium chloride to water, stirring and mixing until the magnesium chloride dissolves to obtain a magnesium chloride solution;
[0042] Add magnesium oxide and perlite to the mixer, stir at a speed of 10r / min for 3min to make them evenly mixed, then add magnesium chloride solution, and stir for 30min at a speed of 70r / min to obtain a mixture;
[0043] 2) Add the mixture prepared in step 1) into the mold, flatten it, press it with a pressure of 4 MPa for 10 minutes, demold it, and dry it naturally.
Embodiment 2
[0045] The filling material for the fire door of this embodiment is made of the following raw materials: 1.5 kg of magnesium chloride, 5 kg of magnesium oxide, 6 kg of perlite, 3 kg of alumina ceramic hollow balls, 1 kg of cement clinker, and 3.5 kg of water. The particle size of magnesium oxide is 400 mesh, and the particle size of perlite is 25 mesh.
[0046] The preparation method of the fire door filling material of the present embodiment comprises the steps:
[0047] 1) adding magnesium chloride to 3kg of water, stirring and mixing until the magnesium chloride is dissolved, and obtaining a magnesium chloride solution;
[0048] Add magnesium oxide and perlite to the mixer, stir at a speed of 15r / min for 2 minutes to make them evenly mixed, then add magnesium chloride solution, stir and mix evenly, and obtain the first mixture;
[0049] Add alumina ceramic hollow balls and cement clinker into the mixer, stir at a speed of 80r / min for 20min, then add 0.5kg of water, continu...
Embodiment 3
[0052] The filling material for fire doors in this embodiment is made of the following raw materials: 1.2 kg of magnesium chloride, 5 kg of magnesium oxide, 8 kg of perlite, 2 kg of alumina ceramic hollow balls, 2 kg of cement clinker, 0.5 kg of antimony trioxide, and 0.5 kg of zinc phosphate. kg, barium phosphate 0.8kg, water 3kg. The particle size of magnesium oxide is 400 mesh, and the particle size of perlite is 25 mesh. The particle size of alumina ceramic hollow balls is 2mm.
[0053] The preparation method of the fire door filling material of the present embodiment comprises the steps:
[0054] 1) adding magnesium chloride to 2.5kg of water, stirring and mixing until the magnesium chloride dissolves to obtain a magnesium chloride solution;
[0055] Add magnesium oxide and perlite to the mixer, stir at a speed of 10r / min for 2min to mix evenly, then add antimony trioxide, zinc phosphate, barium phosphate, stir for 5min at a speed of 15r / min, then add magnesium chloride...
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Abstract
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