A kind of zinc-rich primer and preparation method thereof
A technology of zinc-rich primer and zinc powder, applied in the field of coatings, can solve the problems of coating cathodic protection ability reduction, environmental pollution, large particle size, etc., and achieve the effect of improving anti-corrosion performance, high safety, and dense paint film
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Embodiment 1
[0033] A component:
[0034]
[0035] The preparation method of the zinc-rich primer in this embodiment: first dissolve the epoxy resin in an organic solvent to form an epoxy resin solution, and then add other components in the A component except zinc powder to the epoxy resin solution, Fully grind until the silicon carbide in it is fully dispersed. Grind with a sand mill (Jiangsu Hongliu Chemical Machinery Co., Ltd., 20 liter sand mill) for 40 minutes, add the remaining zinc powder to the epoxy mixing system after grinding, and then Fully disperse with a high-speed disperser (Jiangsu Hongliu Chemical Machinery Co., Ltd.) until the zinc powder is fully dispersed in the mixture (about 40 minutes), and then it becomes component A.
Embodiment 2
[0037] A component:
[0038]
[0039] The preparation method of the zinc-rich primer in this embodiment: first dissolve the epoxy resin in an organic solvent to form an epoxy resin solution, and then add other components in the A component except zinc powder to the epoxy resin solution, Fully grind until the silicon carbide in it is fully dispersed, and use a sand mill (Jiangsu Hongliu Chemical Machinery Co., Ltd., 20 liter sand mill) to grind for 45 minutes, add the remaining zinc powder to the epoxy mixing system after grinding, and then use a high-speed The dispersing machine (Jiangsu Hongliu Chemical Machinery Co., Ltd.) fully disperses for 60 minutes until the zinc powder is fully dispersed in the mixed liquid, which becomes component A.
Embodiment 3
[0041] A component:
[0042]
[0043] The preparation method of the zinc-rich primer in this embodiment: first dissolve the epoxy resin in an organic solvent to form an epoxy resin solution, and then add other components in the A component except zinc powder to the epoxy resin solution, Fully grind until the silicon carbide in it is fully dispersed. Grind with a sand mill (Jiangsu Hongliu Chemical Machinery Co., Ltd., 20 liter sand mill) for 25 minutes, add the remaining zinc powder to the epoxy mixing system after grinding, and then Fully disperse with a high-speed dispersant until the zinc powder is fully dispersed in the mixed solution, which becomes component A.
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