Polyether-ether-ketone modified waterborne alkyd rust-resistant coating

Abstract

The invention relates to a polyether-ether-ketone modified waterborne alkyd rust-resistant coating composed of polyether-ether-ketone modified waterborne alkyd resin, a cosolvent, rust-resistant composite pigment, pigment and filler, auxiliaries and water; the polyether-ether-ketone modified waterborne alkyd resin is prepared by carrying out polymerization, neutralization and water emulsificationon polyol-modified polyether-ether-ketone, unsaturated vegetable oil, polyol and organic acid anhydride under the action of a catalyst. The polyether-ether-ketone modified waterborne alkyd rust-resistant coating provided by the invention has good adhesive force, wear resistance, vapor resistance, salt fog resistance, ageing resistance, flexibility, corrosion resistance and mechanical properties and is widely applied to rust-resistant and corrosion resistance of surfaces of steel structures and concrete such as buildings, chemical industry, petroleum, electricity, metallurgy, ships, traffics and spaceflights.

Description

technical field [0001] The invention relates to a modified alkyd resin water-based coating, in particular to a polyether ether ketone modified water-based alkyd antirust coating, which belongs to the technical field of water-based functional coatings. Background technique [0002] Coating is an indispensable material for daily production and protection of infrastructure. It is widely used in buildings, various hardware, decoration of industrial products, machinery, vehicles, ships, aircraft, instruments and other fields. Alkyd resin coatings have the advantages of cheap and easy-to-obtain raw materials, good coating adhesion, brightness, good fullness, good wettability to pigments, etc., and have good construction properties, and have always played an important role in the field of traditional coatings. However, traditional alkyd resin coatings contain a large amount of organic solvents, which have a serious impact on the human body and the ecological environment. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] Alkyd resin coating is one of the main coating varieties used to protect steel components at present, but the corrosion resistance, water resistance and salt spray resistance of the existing water-based alkyd antirust coatings cannot meet the antirust requirements. Anti-corrosion performance requirements

[0005] Chinese patent CN106118386A discloses an epoxy zinc-rich anti-corrosion coating, which is characterized in that it consists of the following raw materials in parts by weight: 15-20 parts of water-based acrylic modified epoxy resin, 10-15 parts of polymer resin emulsion, silicon alloy 5-10 parts of powder, 3-6 parts of dibutyl phthalate, 12-16 parts of chlorinated paraffin, 6-9 parts of sodium hexaphosphate, 4-8 parts of zinc-rich epoxy powder, 9-14 parts of talc powder 2-4 parts of thickener, which has the advantages of good weather resistance, good anti-corrosion performance, strong adhesion and wear resistance, etc. Its anti-corrosion performance is mainly gold powder and zinc powder, which will cause its dispersion in the coating. Uniform, high cost, low zinc powder affects anti-corrosion performance

[0006] Chinese patent CN106189761A discloses a polyurea anti-corrosion coating, including the following components by weight: 60-80 parts of nano-modified polyurea, 30-35 parts of titanium nanopolymer, 25-30 parts of epoxy resin, diatomite 16-22 parts, 8-12 parts of nano oxide particle reinforcing agent, 6-10 parts of hydroxyethyl cellulose, 5-12 parts of talcum powder, 12-25 parts of thickener, which has excellent anti-corrosion performance, and Strong adhesion, high mechanical strength, high temperature resistance, suitable for weak corrosion environment, can reduce coating cost, but its anti-corrosion range is small, conditions are limited, it is difficult to meet a wide range of anti-corrosion requirements

[0007] Chinese patent CN105400247A discloses an environmentally friendly anti-corrosion coating, the components of which are: potassium silicate, acrylic resin, polyvinyl alcohol, kaolin, feldspar, cerium oxide, potassium hydroxide, distilled water, stabilizer, dispersant , defoamer, thickener, etc., choose inorganic fillers with suitable melting points, which will undergo complex physical and chemical reactions during high-temperature melting, and the fillers can dissolve the generated eutectic and molten materials during melting, Part of the volatile pigments and fillers of the raw materials start to sinter and melt to form a smooth glaze on the green body. In this process, the green body is porcelainized, and the inorganic fillers are vitrified at the same time, which improves the surface properties of the matrix and enhances the mechanical properties of the matrix. , so as to protect the metal, but the production and construction of its anti-corrosion coatings are relatively complicated, requiring high-temperature dissolution reaction, which can only be used in special fields, and it is difficult to meet the general anti-corrosion requirements

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