A water-based nano heavy-duty anti-corrosion coating for chemical sewage pools and its preparation
A technology for chemical sewage and heavy anti-corrosion, applied in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc., can solve problems such as fast curing speed, reduced coating performance, poor adhesion, etc., and achieve improved anti-corrosion performance. Effects of strength and compactness
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Embodiment 1
[0044] In parts by weight, each component is mixed according to the ratio recorded in Table 1
[0045] Preparation process of mixed phosphate color paste: add 4 parts of color powder to the mixed phosphate ester of 4 parts of triethyl phosphate and 7 parts of tricresyl phosphate under stirring at 200r / min, and grind to 0.5 μm in a horizontal sand mill Next, a mixed phosphate ester color paste is obtained.
[0046] The preparation process of component A: Mix 60 parts of liquefied MDI and 20 parts of LTW resin at 500r / min under the condition of dry air protection to make a mixed resin, stir and add 15 parts of mixed phosphate ester color paste under the condition of dry air protection at 500r / min , 2 parts of wetting agent, 2 parts of defoamer, stir at 700r / min and add 2 parts of anti-sagging agent, stir evenly, and obtain component A after filtering.
[0047] The preparation process of component B: Add 60 parts of deionized water to 40 parts of potassium silicate powder with a...
Embodiment 2
[0060] The difference from Example 1 is:
[0061] Preparation process of mixed phosphate color paste: add 4 parts of color powder to the mixed phosphate of 4 parts of triethyl phosphate and 7 parts of tricresyl phosphate under stirring state, and grind it to below 0.5 μm in a horizontal sand mill.
[0062] The preparation process of component A: Mix 60 parts of liquefied MDI and 20 parts of LTW resin at 500r / min under the condition of dry air protection to make a mixed resin, stir and add 15 parts of mixed phosphate ester color paste under the condition of dry air protection at 500r / min , 2 parts of wetting agent, 2 parts of defoamer, stir at 700r / min and add 2 parts of anti-sagging agent, stir evenly, and obtain component A after filtering.
[0063] The preparation process of component B: Add 60 parts of deionized water to 40 parts of potassium silicate powder with a modulus of 3 under stirring, disperse at 30°C and 700r / min for 1 hour, and obtain component B after filtration...
Embodiment 3
[0068] The difference from Example 1 is:
[0069] Preparation process of mixed phosphate color paste: add 4 parts of color powder to the mixed phosphate of 4 parts of triethyl phosphate and 7 parts of tricresyl phosphate under stirring state, and grind it to below 0.5 μm in a horizontal sand mill.
[0070] The preparation process of component A: Mix 60 parts of liquefied MDI and 20 parts of LTW resin at 500r / min under the condition of dry air protection to make a mixed resin, stir and add 15 parts of mixed phosphate ester color paste under the condition of dry air protection at 500r / min , 2 parts of wetting agent, 2 parts of defoamer, stir at 700r / min and add 2 parts of anti-sagging agent, stir evenly, and obtain component A after filtering.
[0071] The preparation process of component B: Add 60 parts of deionized water to 40 parts of potassium silicate powder with a modulus of 3 under stirring, disperse at 30°C and 700r / min for 1 hour, and obtain component B after filtration...
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Abstract
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