Ceramic slurry high-solid content promoter and preparation method thereof
A technology of ceramic slurry and accelerator, which is applied in the field of ceramics, can solve the problems of insufficient viscosity reduction and dispersion effect of ceramic slurry, increase of green body strength, high preparation cost, etc., achieve excellent viscosity reduction effect, increase solid content, prevent particles The effect of reunion
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preparation example Construction
[0019] The preparation method of the accelerator with high solid content in the ceramic slurry of the present invention comprises the following steps: 1) adding water, functional monomers, and the first part of the inorganic chain transfer agent in order to mix, stirring and raising the temperature to 70-80°C to obtain the mixed solution I ; 2) mixing the unsaturated carboxylic acid monomer with the functional monomer and the remaining second part of the inorganic chain transfer agent mixed monomer with water to obtain a mixed monomer, adding water to dissolve the initiator to obtain an initiator solution ; 3) drop the mixed monomer and the initiator solution obtained in step 2) into the mixed solution I obtained in step 1) in parallel, and keep warm for 2-4 hours after the addition to obtain mixed solution II; 4) Cool down the mixed liquid II obtained in step 3) to 40-50°C, add dropwise sodium hydroxide solution with a mass concentration of 30% until the pH value is 6-8, keep ...
example 1
[0028] Example 1: 1) In a 250ml four-neck flask, add 15g of water, 6g of sodium methacrylate, and 1.4g of sodium hypophosphite, start stirring and dissolving and heat up to 70°C to obtain a mixed solution I; 2) Mix 32g of acrylic acid, Mix 5.2g of acrylamide, 1g of sodium hypophosphite and 7g of water to obtain a mixed monomer, dissolve 0.7g of ammonium persulfate in 15g of water to obtain an initiator solution; 3) parallelize the mixed monomer and initiator solution obtained in step 2) Drop into the mixed solution I obtained in step 1), keep warm for 3 hours after 2.5 hours to get the mixed solution II; 4) cool down the mixed solution II to 45°C, and adjust the pH value to 7 with 30% sodium hydroxide solution; Afterwards, keep warm for 0.5h, cool down, filter and discharge to obtain the solid accelerator in the ceramic slurry.
example 2
[0029] Example 2: 1) Add 15g of water, 5.6g of maleic anhydride, and 2.4g of sodium bisulfite to a 250ml four-neck bottle, start stirring and dissolving and heat up to 75°C to obtain a mixed solution I; 2) Mix 32g of acrylic acid, 4.8g Mix 2-acrylamido-2-methylpropenesulfonic acid, 1.6g sodium bisulfite and 7g water to obtain a mixed monomer; dissolve 0.7g ammonium persulfate in 15g water to obtain an initiator solution; 3) combine step 2) The obtained mixed monomer and initiator solution are dropped into the mixed solution I obtained in step 1) in parallel, and after 3 hours of dropping, keep warm for 4 hours to obtain the mixed solution II; 4) Cool the mixed solution II to 40°C, and use 30% sodium hydroxide Adjust the pH value of the solution to 6; after the adjustment, keep warm for 0.5h, cool down, filter and discharge the material to obtain the solid accelerator in the ceramic slurry.
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