Aqueous colorful chromium-free anti-fingerprint coating for coating surface of metal material and construction method thereof

Abstract

The invention relates to an aqueous colorful chromium-free anti-fingerprint coating for coating the surface of a metal material and a construction method thereof. A coated film formed by coating the coating on the surface of the metal material and drying is composed of following components in percentage by weight: 30%-90% of aqueous polymer resin (A), 1%-30% of a resin cross-linking agent (B), 1%-30% of an organic silicon compound (C), 0.5%-10% of an organic wax compound (D), 1%-30% of a coloring compound (E), 0.05%-3% of a metal salt type compound (F), a compound (G) which is selected from at least one one of titanium, zirconium and silicon and accounts for 0.1%-5% of the weight percent of the coated film by using the element to calculate, a sol dispersion body (H) of a monomer or a compound which is selected from at least one of Si, Zr, Ti, Al, Sn, Hf, Ce and Nb and accounts for 0.01%-10% of the weight percent of the coated film. The anti-fingerprint coating has excellent corrosion resistance, alkali resistance, water resistance, chemical resistance, striatonigral degeneration resistance and machinability.

Description

technical field [0001] The invention relates to a water-based color chromium-free anti-fingerprint coating on the metal surfaces of building materials, household appliances, auto parts, etc., including their formed products, castings, coils, etc. A new type of water-based color chrome-free anti-fingerprint paint on the surface of boards and aluminum metal materials, a construction method thereof, and a metal material with a coating film formed by coating the paint. The water-based color chrome-free anti-fingerprint paint combines organic resins, inorganic metals, silanes, coloring components and other components to form a coating film that has excellent corrosion resistance, alkali resistance, water resistance, and Chemical resistance, blackening resistance and processability. Background technique [0002] At present, the fingerprint-resistant coating film at home and abroad is a single transparent color. The fingerprint-resistant coil manufacturers who use this coating oft...

AI Technical Summary

Problems solved by technology

However, according to the experimental results, since the metal ions that can increase the corrosion resistance cannot be introduced into the formula, the corrosion resistance of this product is not enough to meet the needs of customers.

Secondly, the product uses a one-component acrylic resin, which cannot meet the performance requirements of users in terms of chemical resistance and processability.

[0017] The current water-based color chrome-free anti-fingerprint coatings still cannot solve the problem of unifying the performance of the coating film with the storage stability and effectiveness of the coating itself

Some paint developers use solvent-based resin systems cured by polyester amino or epoxy amine, and then add color essence or pigment paste to make transparent solvent-based color fingerprint-resistant coatings. Although the coating film of this coating has poor water resistance , Alcohol resistance, corrosion resistance, stability, and effectiveness are superior to water-based coatings, but they cannot achieve the vividness and decoration of water-based coatings in appearance. The cost is still high, and more importantly, it needs a board temperature of up to 220 degrees during the construction process to complete cross-linking and curing, which consumes a lot of energy, and cannot be environmentally friendly, releasing a large amount of organic solvents

Images