Acrylic emulsion for heavy anti-corrosion coating and preparation method of acrylic emulsion
An acrylic emulsion, heavy-duty anti-corrosion technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of easy migration, water erosion, paint film compactness, water resistance and chemical resistance decline, etc., to improve water resistance and resistance medium effect
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Embodiment 1
[0041] (1) Take the raw material of following parts by weight:
[0042]
[0043] The nano-dispersion used in the present embodiment comprises the following components and parts by weight:
[0044]
[0045] Take 26 parts of deionized water and 2 parts of ethanol into the high level tank, then slowly add 28 parts of titanium tetrachloride, 1.2 parts of sodium dihydrogen phosphate and 4.8 parts of dodecyltrimethoxysilane in sequence, stir evenly, and set aside. Add 30 parts of deionized water, 5 parts of ethanol and 3 parts of ammonia water into the reaction kettle, and stir at a speed of 500 r / min. Add the solution in the high level tank dropwise, the dropwise addition is completed in 3 hours, and the reaction is 2 hours after the dropwise completion. Then the temperature was raised to 90°C, reacted for 3h, and then dropped to room temperature.
[0046] The reaction solution was centrifuged at a speed of 4000r / min for 45min with a centrifuge, and then suction-filtered un...
Embodiment 2
[0055] (1) Take the raw material of following parts by weight:
[0056]
[0057] The nano-dispersion used in the present embodiment comprises the following components and parts by weight:
[0058]
[0059] Take 25 parts of deionized water and 3 parts of isopropanol into the high tank, then slowly add 22 parts of titanium tetrachloride, 10 parts of aluminum chloride, 2.5 parts of sodium dihydrogen phosphate and 7 parts of dodecyl trimethoxy Silane, stir evenly, set aside. Add 20 parts of deionized water, 6 parts of isopropanol and 4.5 parts of N,N-dimethylethanolamine into the reactor, and start stirring. Add the solution in the high level tank dropwise, the dropwise addition is completed in 2.5h, and the reaction is 3h after the dropwise completion. Then the temperature was raised to 80°C, reacted for 4h, and then dropped to room temperature. The reaction solution is centrifuged with a centrifuge, then sucked and filtered to remove the solids, and the clear liquid is ...
Embodiment 3
[0068] (1) Take the raw material of following parts by weight:
[0069]
[0070] The nano-dispersion used in the present embodiment comprises following components and parts by weight:
[0071]
[0072]
[0073] Take 24.3 parts of deionized water, 4 parts of propanol into the high tank, and then slowly add 20 parts of titanium tetrachloride, 11 parts of strontium chloride, 2.2 parts of tripotassium phosphate and 6 parts of dodecyltrimethoxysilane, Stir well and set aside. Add 25 parts of deionized water, 4 parts of propanol and 3.5 parts of monoethanolamine into the reaction kettle, and stir at a speed of 800 r / min. Add the solution in the high level tank dropwise, and the dropwise addition is completed in 3.5h, and the reaction is 4h after the dropwise completion. Then the temperature was raised to 95°C, reacted for 5h, and then dropped to room temperature.
[0074] The reaction solution was centrifuged at a speed of 4500r / min for 45min with a centrifuge, and then ...
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Abstract
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