Preparation method of water-based paint from kaolin filler
A technology of water-based paint and kaolin, applied in the direction of coating, etc., can solve the problems of poor decoration and easy cracking, and achieve the effects of overcoming easy cracking, improving early water resistance, and improving film-forming performance
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[0019] Example 1
[0020] The preparation method of ultrafine high-activity kaolin for coating described in Example 1, the preparation steps are:
[0021] A preparation method for preparing water-based paint using kaolin filler includes the following steps:
[0022] (1) Take 800g of kaolin rock ore from the coal mine, crush it with a crusher to form crushed stone ore with a diameter of 20mm, and then remove iron oxide and magnesium oxide minerals from the crushed stone ore through a magnetic separation device to obtain 200 mesh kaolin raw material;
[0023] (2) Dissolve 200g of hexanediol in 500ml of deionized water and stir for 1 hour to form a hexanediol solution; add 500g of 200 mesh kaolin powder to the hexanediol solution, add 50g of dispersant anionic polyfunctional polymerization Alcohol amine salt solution, sodium carboxymethyl cellulose, sodium hexametaphosphate, and then stirred at 80 ℃ for 2.5h, rotating speed 500r / min, uniformly dispersed to obtain a mixed solution; the mi...
Example Embodiment
[0028] Example 2
[0029] The preparation method of the water-based paint prepared by using kaolin filler in the second embodiment includes the following steps:
[0030] (1) Take 800g of kaolin rock ore from the coal mine, crush it with a crusher to form crushed stone ore with a diameter of 20mm, and then remove iron oxide and magnesium oxide minerals from the crushed stone ore through a magnetic separation device to obtain 200 mesh kaolin raw material;
[0031] (2) Dissolve 200g of hexanediol in 500ml of deionized water and stir for 1.5h to form a hexanediol solution; add 500g of 200 mesh kaolin powder to the hexanediol solution, and add 50g of dispersant anionic polyfunctional The mixture of polymer alcohol amine salt solution and sodium carboxymethyl cellulose is then stirred and reacted at 60 ℃ for 1 hour, rotating speed 450r / min, and uniformly dispersed to obtain a mixed solution; after stirring, the mixed solution is separated by centrifugal sedimentation to obtain kaolin fine ...
Example Embodiment
[0036] Example 3
[0037] The method for preparing water-based paint using kaolin filler in Example 3 includes the following steps:
[0038] (1) Take 800g of kaolin rock ore from the coal mine, crush it with a crusher to form crushed stone ore with a diameter of 20mm, and then remove iron oxide and magnesium oxide minerals from the crushed stone ore through a magnetic separation device to obtain 200 mesh kaolin raw material;
[0039] (2) Dissolve 200g of hexanediol in 500ml of deionized water and stir for 1 hour to form a hexanediol solution; add 500g of 200 mesh kaolin powder to the hexanediol solution, add 50g of sodium hexametaphosphate, and then Stir the reaction at 90 ℃ for 3 hours, rotate speed 750r / min, and disperse uniformly to obtain a mixed liquid; after the mixing is finished, the kaolin fine material is obtained by centrifugal sedimentation and separation;
[0040] (3) Measure 100ml of ethyl orthosilicate with 300ml of absolute ethanol and 50ml of hydrochloric acid with a ...
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