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An epoxy tape and coating technology, used in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of high use price and high price of chelated epoxy resin, and achieve improved adhesion, low cost, excellent The effect of coating performance
Active Publication Date: 2014-07-02
哈尔滨工程大学科技园发展有限公司 +1
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Problems solved by technology
[0005] Although the performance of the paint film described in this patent is better, the price of the chelating ep
Method used
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Embodiment 1
[0018] Preparation of component A: 10kg E44 epoxy resin, 10kg xylene, 4kg n-butanol, 5kg ethanol, 2kg phytic acid, 30kg aluminum tripolyphosphate, 30kg iron red, 0.01kg defoamer, 0.01kg leveling agent; Put it into a ball mill after mixing, disperse and pre-grind for 1.5 hours, and then take it out for use.
[0019] Before use, mix A component with 9kg Cardolite 2015 curing agent to obtain rust-coated epoxy resin paint.
Embodiment 2
[0021] Preparation of component A: 30kg E44 epoxy resin, 15kg xylene, 6kg n-butanol, 8kg ethanol, 4kg phytic acid, 20kg aluminum tripolyphosphate, 10kg zinc oxide, 0.01kg defoamer, 0.01kg leveling agent; After mixing, put it into a ball mill, disperse and ball mill it for 1.5 hours, and then take it out for use.
[0022] Before use, mix component A with 21kg of Cardolite 2015 curing agent to obtain an epoxy resin coating with rust coating. It can be coated on the steel surface whose surface derusting level is lower than Sa2.5.
Embodiment 3
[0024] Preparation of component A: 40kg E44 epoxy resin, 20kg xylene, 8kg n-butanol, 10kg ethanol, 4kg phytic acid, 30kg aluminum tripolyphosphate, 20kg zinc oxide, 10kg iron red, 0.02kg defoamer, 0.015kg flow Leveling agent; mix it and put it into a ball mill, disperse and ball mill it for 1.5 hours and take it out for later use.
[0025] Before use, mix component A with 28kg Cardolite 2015 curing agent to obtain epoxy resin paint with rust coating. It can be coated on the steel surface whose surface derusting level is lower than Sa2.5.
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Abstract
The invention provides an epoxy rust coating which comprises a component A and a component B, wherein the component A comprises the following materials by weight percent: 10%-40% of bisphenol A epoxy resin, 10%-20% of xylene, 4%-8% of normal butanol, 5%-10% of ethanol, 2%-6% of phytic acid, 5%-20% of aluminum tripolyphosphate and 10%-30% of constitution fillers; the component B is a cardolite 2015 cashew-nut modified long-chain phenolic amine curing agent; the weight ratio of the component A to the component B is (3-10): 1. The epoxy rust coating is widely applied to the field of heavy corrosion protection epoxy coatings due to the characteristics of excellent coating performance, low cost and the like. Especially, phytic acid and aluminum tripolyphosphate are added into the coating and can stabilize and convert a rust layer, reduce the interface corrosion, increase an adhesive force and increase the cross-linking degree of the epoxy resin so that a paint film becomes very compact.
Description
technical field [0001] The invention relates to an anti-corrosion paint, in particular to an epoxy anti-corrosion paint which can be painted with rust. Background technique [0002] Steel materials have a wide range of applications in different industries such as shipbuilding, automotive, and construction. Coating technology is the most economical, simple and effective anti-corrosion method for steel surface. Among them, epoxy coatings are widely used in anti-corrosion and anti-rust coatings due to their excellent adhesion, chemical resistance, solvent resistance and low water permeability. [0003] However, during the use of steel, the coating will peel off due to coating aging or collision, resulting in serious local corrosion. During maintenance and regular maintenance of steel parts, it is necessary to recoat the rusted parts. At this time, local derusting equipment cannot be used for rust removal, but manual derusting methods can only be used. Manual derusting cannot...
Claims
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