Inorganic composite coating and method for coating building material base material by using same

Abstract

The invention discloses an inorganic composite coating and a method for fabricating a building material base material by using the same. The formula of the inorganic composite coating comprises a component A and a component B, wherein the component A comprises aqueous alumina dispersion, iron oxide dispersion, zirconium oxide dispersion, titanium dioxide, an inorganic pigment and filler; the component B is silicon dioxide as an inorganic film-forming promoter. The method for fabricating the building material by using the inorganic composite coating comprises the following steps: carrying out degreasing and derusting, chromaking or blasting treatment on the surface of a base material work-piece; preparing the coating, filtering, coating and sintering. The inorganic composite coating disclosed by the invention is advanced in formula, and the building material fabricated by the inorganic composite coating has the advantages of being safe, environment-friendly, good in flexibility and high in hardness, simple in fabrication technology, and energy-saving in the fabrication process.

Description

Technical field [0001] The invention relates to a coating formulation and a method for coating building material substrates using the formulation. Background technique [0002] Metal materials have the properties of light weight, high strength, and good fire resistance, and are widely used in modern buildings. As metal materials come into contact with air or water vapor in the air, they are easy to oxidize and rust, and are not resistant to acids and alkalis. Therefore, when used in building materials, they will be coated with anti-oxidation coatings on the metal substrate. Most of the existing technologies use FEVE Fluorocarbon paint or enamel: [0003] FEVE fluorocarbon coating: ①Formulation: fluorine-modified polymer resin, pigments, additives, solvents, etc. ②Process: basic treatment→spray the first layer of primer→surface drying→spray the second layer of primer→spray topcoat→ High temperature sintering (430℃)→finished product; ③Problems: a. Not environmentally friendly: the ...

AI Technical Summary

Problems solved by technology

[0003] FEVE fluorocarbon coating: ①Formulation: processed by fluorine-modified polymer resin, pigments, additives, solvents, etc. ②Process: Base treatment→spraying the first layer of primer→surface drying→spraying the second layer of primer→spraying topcoat→ High-temperature sintering (430°C) → finished product; ③ Existing problems: a. Not environmentally friendly: the water is highly polluted, the gas emitted is difficult to handle, and it is harmful to the human body. The hidden chemicals can cause harm to the human body after 30 years; b. Unsafe: thick smoke will be generated when encountering an open flame, which will cause great harm to the human body; c. Not energy-saving: the sintering temperature should be above 420°C, 30 minutes); d. Complicated processing: three layers of spraying, high loss rate; d. Hardness Low

[0004] Enamel (enamel): ①Formulation: quartz, silicate, potassium feldspar, kaolin; borax, sodium nitrate, soda ash, lithium carbonate, calcium carbonate, magnesium oxide, zinc oxide, titanium dioxide, antimony oxide, zirconium dioxide, cobalt oxide , nickel oxide, manganese dioxide, iron oxide, etc.; ②Process: glaze preparation→body preparation→enamelling→sintering (850℃)→firing→inspection, etc.; ③Existing problems: a. Difficult processing: processing technology Complicated, with many processes; b. Not environmentally friendly and energy-saving: high temperature sintering is required (850 ° C, more than 30 minutes); c. Fragile and poor flexibility