Latex and synthesis method thereof, and water-based metal anticorrosive paint and synthesis method thereof

Abstract

The invention relates to a latex and a synthesis method thereof, and a water-based metal anticorrosive paint and a synthesis method thereof. The latex is synthesized from epoxy resin, hard monomer, soft monomer, functional monomer, a pH regulator, an anionic emulsifier, a nonionic emulsifier, an initiator, phosphate-containing functional monomer, fluorine-containing monomer and deionized water. The latex has a phosphate group bonded with covalent bond and a fluororesin, so that the latex has high adhesive force, flashing rust resistance, corrosion resistance, weather resistance, water resistance, excellent self-cleaning performance and other comprehensive properties; the introduction of the phosphate group solves the problem of flashing rust of the water-based paint; the latex film is designed into a double-component crosslinking system, thereby solving the problem of poor water resistance of the latex film; and the water-based metal anticorrosive paint has the characteristics of environmental protection and excellent performance, and can be used for painting and protecting a metal structure.

Description

technical field [0001] The invention relates to a latex and a synthesis method thereof, and a water-based metal anticorrosion coating and a synthesis method thereof. Background technique [0002] Metal materials are the material basis of human civilization, but metal corrosion that occurs all the time has also caused huge losses to human society. According to statistics, the annual corroded and rusted metals in the world account for more than 20% of the annual output, and the economic losses caused are about 1,000 billion U.S. dollars. The annual economic loss caused by metal corrosion in my country accounts for about 4% of the gross national product, exceeding the sum of the losses caused by fire, wind disaster and earthquake. Therefore, it is of great significance to the development of the national economy to study the corrosion protection methods of metals to control the corrosion of metals and reduce the losses caused by corrosion. In the field of anti-corrosion of met...

AI Technical Summary

Problems solved by technology

Epoxy resin has many hydroxyl groups and ether bonds, which can be compatible with the substrate, so it has excellent adhesion to metals, and the paint film is tough and has strong corrosion resistance, but poor weather resistance

Fluorine-containing acrylic resin retains the alkali resistance and other characteristics of acrylate coatings, and has the weather resistance, stain resistance, corrosion resistance and self-cleaning performance of organic fluorine resin. It is a resin with excellent comprehensive performance, but its adhesion is poor

[0005] Compared with mature solvent-based coatings, the application of water-based coatings on metal surfaces still has shortcomings, such as the surfactant used in the process of preparing water-based coatings, which makes the water resistance of the coating film poor, and water-based primers directly used on metals are prone to Flash corrosion, slow drying time of the coating film caused by water, poor stability to strong mechanical forces during production, and high requirements for the cleanliness of the metal substrate surface during construction, but as long as it is properly designed, it can be used in many harsh environments It is fully competent under the following conditions, and its performance is being continuously improved and enhanced

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