Aqueous road marking paint and preparation method thereof

Abstract

The invention discloses aqueous road marking paint. The aqueous road marking paint comprises, by weight, 20-40 parts of an ingredient A, 20-40 parts of an ingredient B and 150-300 parts of an ingredient C. The ingredient A comprises, by weight, 10-15 parts of a dispersant, 3-6 parts of a wetting agent, 3-6 parts of an antifoaming agent, 6-7 parts of a thickening agent, 8-10 parts of a levelling agent, 782-822 parts of deionized water and 138-178 parts of a curing agent. The ingredient B comprises aqueous polyester. The ingredient C comprises, by weight, 300-390 parts of premix powder, 130-160 parts of titanium dioxide, 210-270 parts of quartz powder, 260-310 parts of glass beads and 130-12 parts of a glass fabric. The aqueous road marking paint has environmental friendliness, solves the problem that the normal temperature-type road marking paint pollutes the environment and has a short usage life, complex hot melting processes, low efficiency and poor recoatability, has good reflector effects at night and fast drying characteristics, utilizes harmful raw materials with environmental friendliness, has a fast drying rate, is convenient for construction and has a long usage life.

Description

technical field [0001] The present invention relates to a kind of paint and its preparation method, more specifically, it relates to a kind of water-based road marking paint and its preparation method. Background technique [0002] "If you want to get rich, build roads first" is a catchphrase among the common people at present. It shows that the development of transportation is the forerunner of getting rich in the process of our country's pursuit of a well-off life. For this reason, since 1998, our country has invested as much as 2,000 yuan in road construction every year. In 2002, the investment in transportation fixed assets was 315 billion yuan. The results achieved are also extremely encouraging. By the end of 2002, the mileage of highways had reached 175.8 [0003] The total mileage of highways reached 25,200 kilometers, ranking second in the world, surpassing Canada and Germany, and second only to the United States. When the "Tenth Five-Year Plan" was completed in 20...

AI Technical Summary

Problems solved by technology

[0004] The earliest and most commonly used road marking paint is normal temperature solvent-based road marking paint, which is applied with high-pressure airless spraying equipment. The processing and use of normal temperature solvent-based road marking paint do not require heating, and the production and construction are relatively simple. Therefore, it is widely used in road markings, but the normal temperature solvent-based road marking paint contains a large amount of organic solvents, so the high-pressure airless spraying equipment using the normal temperature solvent-based road marking paint needs to use a special solvent after the construction is completed To clean the residual paint on the equipment. In addition, most of the normal temperature solvent-based road marking paints use acrylic resin as the base material, and the content of volatile organic compounds is as high as 650g / L. During the drying process of the normal temperature solvent-based road marking paint, these volatile organic compounds Non-toxic organic compounds will escape into the air, causing environmental pollution and endangering the health of nearby people, and the normal temperature solvent-based road marking paint has almost no adhesion to the glass beads used as reflective warning materials, so it cannot be used again Addition of glass microspheres in room temperature solvent-based road marking paint

[0005] Then there was a hot-melt road marking paint. Compared with the normal temperature solvent-based road marking paint, this kind of paint greatly reduces the use of organic solvents, and the environmental pollution and personnel poisoning caused by it are far less than the normal temperature solvent-based road marking paint. However, this kind of paint must be prepared by heating, and it needs to be heated many times during use. After the spraying is completed, the cleaning equipment also needs to be heated, which consumes a lot of energy. In addition, the hot-melt road marking paint needs to It is inconvenient to remove the original old coating first, and its adhesion to glass beads is not good. The reflective effect brought by glass beads does not last long enough, which virtually increases the cost of use.

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