Preparation method of ceramic membrane with adsorption and interception functions
A technology of ceramic membrane and ceramic sheet, which is used in adsorption water/sewage treatment, household appliances, clay products, etc., can solve the problems of unreported ceramic membrane, limitation of attapulgite, etc., and achieves enhanced adsorption performance and interception function. The effect of the adsorption effect
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[0019] Example 1
[0020] (1) Mix 8.345g of attapulgite with 10ml of deionized water, stir mechanically at room temperature, mix evenly to a paste, slowly pour it into the mold and press it into shape. After demolding, it is preformed into a diameter of 2.9cm and a thickness of 1.3cm. Round flake ceramics.
[0021] (2) The prefabricated ceramic sheet is aged for 5 days in a constant humidity environment, and then taken out and dried in a natural environment for 3 days, so that the internal and external moisture of the ceramic sheet is evenly dried to completeness.
[0022] (3) Sent to the muffle furnace for high-temperature calcination, the initial temperature is 50°C, the final calcination temperature is 350°C, the heating rate is 1.5°C / min, the holding time is 2h, and the cooling rate is 1°C / min.
[0023] (4) After cooling, use 120#~360# sandpaper to smooth the surface. Use a soft brush to remove dust and residual powder on the surface of the ceramic sheet.
[0024] (5) Prepare a su...
Example Embodiment
[0028] Example 2
[0029] (1) Mix 8.297g of attapulgite with 10ml of deionized water, mechanically stir at room temperature, mix evenly to a paste, slowly pour into the mold to press and shape, after demolding, it is preformed into a diameter of 2.9cm and a thickness of 1.3cm Round flake ceramics.
[0030] (2) The prefabricated ceramic chip is first aged for 7 days in a constant humidity environment, and then taken out and dried in a natural environment for 5 days to uniformly dry the internal and external moisture of the ceramic chip to completeness.
[0031] (3) Sent to the muffle furnace for high-temperature calcination, the initial temperature is 50°C, the final calcination temperature is 450°C, the heating rate is 1°C / min, the holding time is 2h, and the cooling rate is 1°C / min. No inert protective gas is required during the calcination process.
[0032] (4) After cooling, use 120#~360# sandpaper to smooth the surface. Use a soft brush to remove dust and residual powder on the ...
Example Embodiment
[0035] Example 3
[0036] (1) Mix 8.009g of attapulgite with 9ml of deionized water, mechanically stir at room temperature, mix evenly to a paste, slowly pour into the mold to press and shape, after demolding, it is preformed into a diameter of 2.9cm and a thickness of 1.2cm Round flake ceramics.
[0037] (2) The prefabricated ceramic sheet is aged for 5 days in a constant humidity environment, and then taken out and dried in a natural environment for 3 days, so that the internal and external moisture of the ceramic sheet is evenly dried to completeness.
[0038] (3) Send to the muffle furnace for high-temperature calcination, the initial temperature is 50°C, the final calcination temperature is 250°C, the heating rate is 2.5°C / min, the holding time is 2h, and the cooling rate is 1°C / min.
[0039] (4) After cooling, use 120#~360# sandpaper to smooth the surface. Use a soft brush to remove dust and residual powder on the surface of the ceramic sheet.
[0040] (5) Prepare a sulfuric aci...
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