Inorganic composite foaming cement warming plate warming plate and manufacturing method thereof
A foamed cement and inorganic composite technology, applied in the field of building materials, can solve the problems of poor foamed concrete strength, high difficulty, insufficient cement hydration, etc., and achieve the effects of high closed cell rate, improved strength, and uniform foam shape.
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Embodiment 1
[0030] Example 1 Preparation of Inorganic Composite Foamed Cement Insulation Board (1)
[0031] (1) Raw materials
[0032] Use following raw material in this embodiment and following embodiment:
[0033] Fatty acid salt: calcium stearate;
[0034] Neoprene latex: cationic neoprene latex;
[0035] Water-repellent agent: Silicone water-repellent agent, produced by Germany Yilaitai Company, product model: 4280;
[0036] Redispersible rubber powder: vinyl acetate and ethylene copolymer rubber powder (Vac / E), produced by Germany Yi Lai Tai Company, product model: FX2350;
[0037] Cellulose ether: Hydroxyethyl methyl cellulose, produced by Yilaitai Company in Germany, product model: MHL301.
[0038] (2) Preparation steps
[0039] Add 40kg of warm water at 25-30℃ to 100kg of sulfoaluminate cement to make cement slurry, and add 100g of MnO to the cement slurry 2 Stir for 1 minute, then add 7 kg of 27.5 wt% H 2 o 2 The solution was stirred for 30 seconds, poured into the mold, ...
Embodiment 2
[0040] Example 2 Preparation of Inorganic Composite Foamed Cement Insulation Board (2)
[0041] Add 38 kg of warm water at 25-30°C to 100 kg of sulphoaluminate cement to make cement slurry, add 200 g of calcium stearate to the cement slurry and stir for 30 seconds, then add 200 g of MnO 2 Stir for 1 minute, then add 7 kg of 27.5 wt% H 2 o 2 The solution was stirred for 30 seconds, poured into the mold, stopped for foaming, and naturally cured to obtain foamed concrete with a bulk density of 200kg / m3. After seven days of curing, the foamed concrete is cut into cement foamed concrete products of various specifications. The strength of the foamed concrete was measured to be 0.3Mpa. The water absorption rate is 18%. The thermal conductivity is 0.056, the average water-absorbing bubble pore size is 3mm, and the closed cell rate is 95%.
Embodiment 3
[0042] Example 3 Preparation of Inorganic Composite Foamed Cement Insulation Board (3)
[0043] Add 36kg of warm water at 25°C to 100kg of sulfoaluminate cement to make cement slurry, add 200g of calcium stearate and 250g of cationic neoprene latex to the cement slurry, stir for 30 seconds, and then add 300g of MnO 2 Stir for 1 minute, then add 8 kg of 27.5 wt% H 2 o 2 The solution was stirred for 30 seconds, poured into the mold, stopped to foam, and naturally cured to obtain a bulk density of 200kg / m 3foamed concrete. After seven days of curing, the foamed concrete is cut into cement foamed concrete products of various specifications. The strength of the foamed concrete was measured to be 0.5Mpa. The water absorption rate is 12%. The thermal conductivity is 0.054, the average water-absorbing bubble pore size is 3.2mm, and the closed cell rate is 95%. Embodiment 4 prepares inorganic composite foamed cement insulation board (four)
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Abstract
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