Self-cleaning two-component resin for road marking and preparation method of self-cleaning two-component resin

Abstract

The invention provides a self-cleaning two-component resin for road marking. The self-cleaning two-component resin for road marking comprises a component A and a component B, wherein the component A is prepared from the following raw materials: modified chloroether self-cleaning resin, cross-linking agent resin, a stabilizer, methyl methacrylate, butyl methacrylate, butyl acrylate, an anti-foulingassistant, an accelerator and a terminator; and the component B is prepared from the following raw materials: modified chloroether self-cleaning resin, cross-linking agent resin, a stabilizer, methylmethacrylate, butyl methacrylate, butyl acrylate and an antifouling assistant. The preparation method is simple, the raw material source is wide, and the prepared self-cleaning two-component resin iswater-resistant, fireproof, strong in adhesive force, salt-resistant and chemical-corrosion-resistant, can be cleaned when washed with rainwater, and is good in anti-fouling property and excellent inperformance.

Description

technical field [0001] The invention relates to the technical field of road markings, in particular to a self-cleaning two-component resin for road markings and a preparation method thereof. Background technique [0002] With the rapid development of my country's highway construction, the amount of paint used for road marking construction has reached hundreds of thousands of tons every year, and road marking paint has formed a large industry. In order to meet the use requirements of different regions, different climates, and different construction environments, road marking paints have gradually changed from a single variety to a wide variety, from low-grade to high-grade, from solvent-based to environmentally friendly solvent-free, and from single-function to multi-functional. develop. For example, in order to facilitate construction, room temperature paints have been developed from hot-melt marking paints, and water-based paints have been developed from solvent-based pain...

AI Technical Summary

Problems solved by technology

[0003] However, the current marking paint is required to be applied on a dry and clean road surface during the construction process. If the road surface humidity is too high, it will seriously affect the adhesion of the road marking paint after film formation and curing, and even affect the drying time and construction of the marking line. After years of construction and market research, it is found that the appearance of the rear markings often has to be interrupted due to consecutive days of rainy weather.

In addition, because the marking lines have to withstand the rolling of vehicles, the high temperature of the bottom surface in summer and the low temperature of the bottom surface in winter, the current marking lines often crack, fall off or deform in summer and winter, and the marking line life is short

Or the polyurethane system is used for the coating part, which is costly, and the part is used for ordinary indoor powder coatings. Oil stains are not easy to clean, and frequent cleaning processes are required, which not only wastes water resources, but also consumes a lot of manpower.

[0004] CN105482633A discloses an easy-to-clean powder coating of an epoxy polyester system, wherein the epoxy resin has poor weather resistance, and calcium carbonate is also prone to chalking and falling off when used outdoors. Therefore, the powder coating disclosed in this patent is not It is suitable for outdoor use; and CN107760170A discloses a preparation method of self-cleaning powder coating, but novolac epoxy resin is used in it, and the weather resistance of novolac epoxy resin is general, and it is easy to powder and fall off when used outdoors , thereby losing the self-cleaning function of the coating; CN103194140A discloses a self-cleaning super weather-resistant powder coating and its preparation method, wherein anatase titanium dioxide is used, and the anatase titanium dioxide will form electrons after being irradiated by ultraviolet rays. - Hole pairs, where the oxygen on the surface of titanium dioxide captures electrons to form negative oxygen ions, which have strong oxidation ability and can decompose hydroxyl-terminated polyester resins and some inorganic substances. In addition, the patent is a hydroxyl-terminated polyester system It is mixed with fluorocarbon resin system, and then sprayed on the surface of the workpiece. Since the sprayed coating is a mixture, during the reaction process, the reaction time of the hydroxyl-terminated polyester system is relatively fast, while the fluorocarbon system reacts slowly. The coating has already formed cross-linking and curing, so it is impossible to float down to the lower part of the coating, and there is still a part of the hydroxyl-terminated polyester system in the upper part, which is easily oxidized by ultraviolet radiation and chalking occurs

Therefore, the cured coating after mixing the powders of the two systems will affect the service life of the coating in practical applications due to the short board of some materials, resulting in powdering of the coating, thereby reducing or losing the self-cleaning function