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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Magnesium oxychloride and magnesium oxysulfate compound cement foam fire door core board and preparation method thereof
The invention provides a magnesium oxychloride and magnesium oxysulfate compound cement foam fire door core board and a preparation method thereof. The core board comprises the following raw materials: magnesium oxide, an anhydrous magnesium chloride solution, a magnesium sulfate solution, desulfurization gypsum, superfine carbon fiber, superfine micro-silica, a cationic polyacrylamide solution, ferrous sulfate and an efficient foaming agent, between which the ratio is 100:60:66.6:2:0.8:0.5:0.5:0.5:0.5. The method comprises the following steps: uniformly mixing the anhydrous magnesium chloride solution and the magnesium sulfate solution, adding the anhydrous magnesium chloride solution and the magnesium sulfate solution into a stirring machine, adding the cationic polyacrylamide solution and a ferrous sulfate solution into the stirring machine, and adding superfine carbon fiber, lightly calcined magnesium oxide, desulfurization gypsum, superfine microsilica and a foaming solution in sequence while performing stirring; pushing a stack of moulds, in which foaming slurry is poured, into a curing stove, curing the moulds for 8-10h, and then performing demoulding; and after demoulding, performing moisture preservation and temperature control curing and water control curing respectively until the moisture content is less than or equal to 10%. The core board provided by the invention is environmentally friendly and light, has high-strength and favorable high temperature resistance and meets the national requirements for fire prevention and safety.
Magnesium oxychloride and magnesium oxysulfate compound cement foam fire door core board and preparation method thereof
The invention provides a magnesium oxychloride and magnesium oxysulfate compound cement foam fire door core board and a preparation method thereof. The core board comprises the following raw materials: magnesium oxide, an anhydrous magnesium chloride solution, a magnesium sulfate solution, desulfurization gypsum, superfine carbon fiber, superfine micro-silica, a cationic polyacrylamide solution, ferrous sulfate and an efficient foaming agent, between which the ratio is 100:60:66.6:2:0.8:0.5:0.5:0.5:0.5. The method comprises the following steps: uniformly mixing the anhydrous magnesium chloride solution and the magnesium sulfate solution, adding the anhydrous magnesium chloride solution and the magnesium sulfate solution into a stirring machine, adding the cationic polyacrylamide solution and a ferrous sulfate solution into the stirring machine, and adding superfine carbon fiber, lightly calcined magnesium oxide, desulfurization gypsum, superfine microsilica and a foaming solution in sequence while performing stirring; pushing a stack of moulds, in which foaming slurry is poured, into a curing stove, curing the moulds for 8-10h, and then performing demoulding; and after demoulding, performing moisture preservation and temperature control curing and water control curing respectively until the moisture content is less than or equal to 10%. The core board provided by the invention is environmentally friendly and light, has high-strength and favorable high temperature resistance and meets the national requirements for fire prevention and safety.
Magnesium oxychloride and magnesium oxysulfate compound cement foam fire door core board and preparation method thereof
FU HONGWEI (Autor:in) / SHAN BAOSHENG (Autor:in) / FU ZHIHAO (Autor:in)
08.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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