A kind of preparation method of nano desulfurization gypsum artificial board
A technology for desulfurizing gypsum and wood-based panels, applied in the field of wood-based panels, can solve problems such as occupying land and polluting the environment, and achieve the effects of low cost, enhanced water resistance, and improved quality
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[0018] The present invention will be described in further detail below in conjunction with specific examples.
[0019] After adding microorganisms to the desulfurized gypsum, adding a chloride ion stabilizer to obtain pretreated desulfurized gypsum; recrystallizing the pretreated desulfurized gypsum to obtain spherical hemihydrate gypsum crystals. Table 1 lists 18 pretreatment examples numbered 1-18.
[0020] Table 1
[0021]
[0022]
[0023] A surfactant, a hydraulic gelling material, a hydrophobic agent, and a setting retarder are added to the hemihydrate gypsum crystals, and the dry powder is obtained after mixing evenly. Table 2 lists 18 examples of dry powder formulations numbered 1-18.
[0024] Table 2,
[0025]
[0026] Add a solvent to the dry powder, stir evenly, pour it into a model covered with mesh cloth, and after curing in a curing room, demould to obtain a nano-desulfurized gypsum wood-based panel. Table 3 lists 18 examples of wood-based panel mold...
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