Novel water-based epoxy anticorrosive coating and preparation method thereof
An anti-corrosion coating, water-based epoxy technology, applied in the field of coatings, can solve the problems of coating anti-corrosion performance, failure to meet product coating requirements, performance gap and other problems, achieve high market application value, good environmental protection performance, and improve anti-corrosion performance Effect
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[0016] figure 1 It is a process step diagram of the preparation method of the new waterborne epoxy anticorrosive coating in the embodiment of the present invention; the anticorrosive coating is prepared by mixing the A component let down and the B component curing material. The preparation method includes the following steps: a) Preparation Take the A-component color paste, b) prepare the A-component letdown, c) prepare the B-component curing material, and d) mix the A and B components to prepare the coating.
[0017] The new water-based epoxy anticorrosive coating mentioned in the present invention uses water-based epoxy resin emulsion and water-based modified amine curing agent as base materials, and uses suitable film-forming additives, dispersants, defoamers, leveling agents and other additives. The active anticorrosive pigment compounded by aluminum tripolyphosphate and zinc phosphate is used for preparation. The prepared waterborne epoxy anticorrosive coating has good envir...
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[0018] Example 1
[0019] The specific preparation method is as follows:
[0020] a) To prepare A component color paste, the specific preparation process is as follows: first weigh 2.2% iron oxide red, 10% rutile titanium dioxide, 20% precipitated barium sulfate, 3.1% mica powder by weight percentage, 14% active anti-rust pigment, 0.4% BYK-110 wetting and dispersing agent, 0.3% BYK-034 defoaming agent, 50% deionized water; then the wetting and dispersing agent, defoaming agent and deionized water Mix to obtain an auxiliary agent mixture; then put iron oxide red, rutile titanium dioxide, precipitated barium sulfate, mica powder and active anti-rust pigment into the auxiliary agent mixture, and grind it with a sand mill to a fineness of less than 30um to obtain A component color paste.
[0021] b) To prepare A component letdown, the specific preparation process is as follows: first weigh 45% A component color paste, 50% water-based epoxy resin emulsion, 4.5% ethylene glycol monobutyl...
Example Embodiment
[0024] Example 2
[0025] The specific preparation method is as follows:
[0026] a) To prepare A component color paste, the specific preparation process is as follows: first weigh 2.8% iron oxide red, 12% rutile titanium dioxide, 22% precipitated barium sulfate, 4.1% mica powder by weight percentage, 16% active anti-rust pigment, 0.6% BYK-110 wetting and dispersing agent, 0.5% BYK-034 defoamer, 42% deionized water; then wetting and dispersing agent, defoaming agent and deionized water Mix to obtain an auxiliary agent mixture; then put iron oxide red, rutile titanium dioxide, precipitated barium sulfate, mica powder and active anti-rust pigment into the auxiliary agent mixture, and grind it with a sand mill to a fineness of less than 30um to obtain A component color paste.
[0027] b) To prepare A component letdown, the specific preparation process is as follows: first weigh 48% A component color paste, 45% water-based epoxy resin emulsion, and 6% ethylene glycol monobutyl ether fi...
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