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Super-thick film anticorrosion coating of splash zone marine steel structure
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An anti-corrosion coating and steel structure technology, applied in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve the problems of high cost, high VOC content, long construction period, etc., achieve high application value, simplify construction process, The effect of reducing construction costs
Inactive Publication Date: 2011-03-23
MARINE CHEM RES INST
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Its main disadvantages are: ① Long construction period and high cost; ② Contains strong carcinogenic coal tar pitch, which is harmful to human body; ③ High VOC content; ④ Poor impact resistance and easy to damage
Method used
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[0041] B component: 115 polyamide 60%, xylene 20%, n-butanol 20%;
[0042] A component: B component is 5:1, weight ratio, cured, and the coating thickness is 80-150 μm.
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Abstract
The invention provides a super-thick film anticorrosion coating of a splash zone marine steel structure. The super-thick film coating consists of base paint, surface paint and mat coat surface paint, wherein the base paint is double-component epoxy base paint; the curing agent is amine; the surface paint comprises double components A and B; and the mat coat surface paint is one of double-component acrylic surface paint, double-component fluorocarbon surface paint and organic silicon surface paint. The super-thick film anticorrosion coating ensures that a marine steel facility can safely serve for more than 30 years in the severe environment of a splash zone, and has extremely high application value; and the surface paint is thick film epoxy surface paint, so the construction thickness can be reached by one to two procedures, the construction process is simplified and the construction expense is reduced.
Description
technical field [0001] The present invention belongs to the anti-corrosion coating, in particular to an ultra-thick film anti-corrosion coating for marine steel structures in the splash zone. Background technique [0002] The marine environment is an extremely harsh corrosive environment. Steel structures exposed to the marine environment are prone to electrochemical reactions with the surrounding medium and are severely corroded, especially in the splash zone. This area is the harshest marine environment. Due to seawater splashing, alternating wet and dry and ultraviolet aging, the anti-corrosion coating is difficult to maintain and the corrosion is the most serious. At present, the anti-corrosion protection of marine steel structures in the splash zone generally adopts epoxy asphalt system. Use zinc-rich epoxy as the primer and epoxy asphalt as the topcoat. After multiple coatings, the thickness reaches 300-500μm. Its main disadvantages are: ① Long construction period an...
Claims
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Application Information
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