A kind of multifunctional foam adsorption board and preparation method thereof
A foam adsorption and multi-functional technology, applied in ceramic products, other household utensils, household utensils, etc., can solve the problems of mineral natural pore collapse, destruction of mineral crystal structure, loss of adsorption characteristics, etc., and achieve good adsorption stability and high adsorption The effect of capacity
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[0061] like figure 1 As shown, the preparation method of a multifunctional foam adsorption board of the present invention includes the steps of raw material pretreatment, mixing, pulping, grouting, freezing, drying, and calcination.
[0062] like figure 2 As shown, the multifunctional foam adsorption plate prepared by the present invention is loose, porous, and light in weight. The porous structure on the upper surface is formed by a mold, and the interior and cross-section are multi-level porous structures, which not only retains the natural nanoporous structure of minerals, but also forms artificial mesopores.
[0063] image 3 For the scanning electron micrograph of the multifunctional foam adsorption plate that makes of the present invention, by image 3 It can be seen that the multifunctional foam board of the present invention has a porous structure.
Embodiment 1
[0065] 1) Use a pressure of 130MPa to carry out homogenization pretreatment on the sepiolite mineral raw material;
[0066] 2) Take 85 parts of treated sepiolite, 10 parts of diatomaceous earth, and 5 parts of polypropylene fiber and mix them uniformly to obtain a mixture;
[0067] 3) Add water to prepare the mixture into a slurry with a concentration of 60%, then add a pore-forming agent accounting for 3% of the mixture mass, stir for 10 minutes, then add a binder accounting for 20% of the mixture mass, and stir for 30 minutes to obtain a slurry Mixture, the pore forming agent is a mixture of sodium bicarbonate and sodium carbonate, and the binder is a mixture of sodium carboxymethylcellulose, epoxy resin, polyvinyl alcohol, polyethylene glycol;
[0068] 4) Pour the slurry mixture into a specific mold to freeze, keep the temperature at -20°C, and dry it under 10Pa to obtain the molded green body;
[0069] 5) Calcining the green body at 200°C to produce a finished multifuncti...
Embodiment 2
[0071] 1) Use a pressure of 130MPa to carry out homogenization pretreatment on the sepiolite mineral raw material;
[0072] 2) Take 80 parts of treated sepiolite, 10 parts of diatomite, 5 parts of tourmaline, and 5 parts of polypropylene fiber and mix them uniformly to obtain a compound;
[0073] 3) Add water to prepare the mixture into a slurry with a concentration of 55%, add a pore-forming agent accounting for 15% of the mixture mass, stir for 20 minutes, then add a binder accounting for 15% of the mixture mass, and stir for 20 minutes to obtain a slurry mixture , the pore-forming agent is a mixture of sodium carbonate, ammonium bicarbonate, and ammonium carbonate, and the binder is a mixture of sodium silicate, pseudoboehmite, gamma-alumina, and sodium fluorosilicate;
[0074] 4) Pour the slurry mixture into a specific mold to freeze, keep the temperature at -40°C, and dry it under the environment of 5Pa to obtain the molded green body;
[0075] 5) Calcining the green bod...
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Abstract
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