Aqueous anti-corrosion coating and preparation method thereof

Abstract

The invention discloses an aqueous anti-corrosion coating which is characterized by consisting of the following components in parts by weight: 40-60 parts of emulsified asphalt, 15-25 parts of an aqueous filming ionomer, 1-3 parts of di(3-triethoxy silicon propyl) fumarate, 1-3 parts of 3-(2-propylene seleno-)-L-alanine, 0.3-0.5 part of methyl racemization-(E)-7-[5-tertiary-butyl dimethyl silylation oxymethyl-2,6-diisopropyl-4-(4-fluorophenyl)-3-pyridyl]-5-hydroxy-3-oxo-6-heptanoate, 1-3 parts of L-zinc carnosine modified alginic acid, 10-15 parts of an aqueous graphene slurry hectorite composition, 3-6 parts of an emulsifier, 0.5-1 part of an initiator, 1-3 parts of a thickening agent and 40-50 parts of deionized water. The invention furthermore discloses a preparation method of the aqueous anti-corrosion coating. The aqueous anti-corrosion coating disclosed by the invention is remarkable in corrosion-resistant and waterproof effect, good in comprehensive property, good in stability and weather resistance, rapid in drying speed and green and environmental-friendly in production and use process.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based anticorrosion coating and a preparation method thereof. Background technique [0002] With the continuous development of the national economy and basic construction, the anti-corrosion requirements of national key projects and large-scale projects are getting higher and higher, and large-scale steel equipment, components, pipelines and other steel structure facilities are increasing. In order to ensure the service life of these steel structures, it is necessary Take efficient and durable protective measures, among which coating protection is the most commonly used anti-corrosion method for steel structures. An ideal coating requires that the coating that forms the coating not only has excellent anti-rust and anti-corrosion properties, but also must have good workability, adaptability and durability. [0003] At present, the vast majority of anti-corrosion coatings...

AI Technical Summary

Problems solved by technology

However, the water-based anti-corrosion coatings in the prior art have more or less poor stability, which is not conducive to storage and construction, high cost, poor weather resistance, slow drying speed, poor water resistance, cold and brittle when hot, thick coating is easy to sag And other issues

[0004] The Chinese patent application publication number CN106752642A discloses a water-based asphalt anti-corrosion coating and its preparation method. The vertical flow thickness of each embodiment of the patent is less than 500 μm, which cannot meet the application requirements of actual thick coating

The Chinese patent with application publication number CN103820024A discloses a water-based anti-corrosion and waterproof underframe coating and its production method. The method needs to mix emulsified asphalt, water-based epoxy resin and other raw materials evenly, store for 48 hours, and obtain modified asphalt epoxy copolymer resin. Then carry out subsequent production steps, the production process is more time-consuming and the steps are more complicated