Fireproof door core board material, fireproof door core board and manufacturing methods thereof
A technology for fire door core boards and manufacturing methods, applied to ceramic products, other household appliances, applications, etc., can solve the problems of poor fire resistance and failure to reach A1 level, and achieve good heat insulation performance, high fire resistance, and excellent Moisture-proof effect
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Embodiment 1
[0054] 20000g expanded perlite, 20000g magnesium oxide, 20000g anhydrous magnesium chloride, 15000g water, 8000g urea-formaldehyde glue, 5000g talcum powder, 5000g polyester glue, 3000g alum, 1000g foaming agent, 1000g crack-resistant fiber, 1000g potassium permanganate and 1000g ferrous sulfate is mixed, obtains fire-resistant mixture;
[0055] Put the fire-resistant mixture into a mold, pressurize at 220 tons for 100 minutes at 150° C., release the mold, and dry naturally to obtain a fire-resistant door core board.
[0056] According to the above technical scheme, the present invention performs a performance test on the prepared fire door core board, and the test result is: the density of the fire door core board is 230kg / cm 3 The flexural strength is 9.5MPa; the compressive strength is 0.5MPa; the thermal conductivity is 0.04W / (m.k); the moisture content is 8%; the wet expansion rate is 0.2%; the fire resistance limit is 2h; The sound coefficient is 0.05.
Embodiment 2
[0058] 22800g expanded perlite, 21080g magnesium oxide, 24750g anhydrous magnesium chloride, 16500g water, 9100g urea-formaldehyde glue, 4100g talcum powder, 5500g polyester glue, 2750g alum, 1100g foaming agent, 1280g crack-resistant fiber, 1270g potassium permanganate and 825g ferrous sulfate is mixed, obtains fire-proof mixture;
[0059] Put the fire-resistant mixture into a mold, pressurize with 300 tons for 110 minutes at 200°C, release the mold, and dry naturally to obtain a fire-resistant door core board.
[0060] According to the above technical scheme, the present invention performs a performance test on the prepared fire door core board, and the test result is: the density of the fire door core board is 210kg / cm 3 The flexural strength is 8.5MPa; the compressive strength is 0.75MPa; the thermal conductivity is 0.05W / (m.k); the moisture content is 6%; the swelling rate is 0.15%; the fire resistance limit is 1.5h; The sound absorption coefficient is 0.8.
Embodiment 3
[0062] 18750g expanded perlite, 19125g magnesium oxide, 16500g anhydrous magnesium chloride, 13500g water, 5625g urea-formaldehyde glue, 5250g talcum powder, 4500g polyester glue, 2250g alum, 900g foaming agent, 1050g crack-resistant fiber, 1050g potassium permanganate and 1125g ferrous sulfate is mixed, obtains fire-resistant mixture;
[0063] Put the fire-resistant mixture into a mold, pressurize with 400 tons at 350°C for 60 minutes, release the mold, and dry naturally to obtain a fire-resistant door core board.
[0064] According to the above technical scheme, the present invention performs a performance test on the prepared fire door core board, and the test result is: the density of the fire door core board is 240kg / cm 3 The flexural strength is 10MPa; the compressive strength is 0.8MPa; the thermal conductivity is 0.07W / (m.k); the moisture content is 4%; the swelling rate is 0.1%; the fire resistance limit is 1.8h; The sound coefficient is 0.5.
[0065] It can be seen...
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Abstract
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