Preparation method of quick-setting hot-melt marking coating

Abstract

The invention relates to the technical field of processing of road marking coatings, and in particular, relates to a preparation method of a quick-setting hot-melt marking coating, wherein the preparation method is prepared by the following steps: (1) stirring methyl methacrylate, potassium persulfate, a rare earth material and deionized water in N2 at the temperature of 65-75 DEG C and at the rate of 30-45 rmp / min for 1-2 hours, centrifuging, filtering, taking precipitate, and drying, to obtain polymethyl methacrylate nanospheres with the fluorescence characteristic; and (2) mixing nano TiO2 with rare earth material deionized water, then adding the porous calcium carbonate microspheres, carrying out ultrasonic treatment for 20-30 minutes, then adding an ethylenediamine tetraacetic acid disodium solution, stirring for 20-30 minutes, and drying. The prepared coating has the advantages of high reflection coefficient, high temperature resistance, wear resistance, long fluorescence duration and high fluorescence brightness.

Description

technical field [0001] The invention relates to the technical field of road marking paint processing, in particular to a preparation method of quick-setting hot-melt marking paint. Background technique [0002] Road marking paint is referred to as marking paint for short. It is divided into two types: hot-melt type and solvent type. Most roads in Japan use hot-melt type paint, and countries such as Europe and the United States gradually increase the amount of use. Hot-melt type marking paint on the market is often used Titanium dioxide is used as a pigment, and titanium dioxide will fade and become unclear in the long-term sunshine process, and when using it, the construction personnel also found that the raw materials are prone to agglomeration during use, which is inconvenient to use. At the same time, they also found that Some luminescent paints on the market at night will also add calcium carbonate, titanium dioxide, disodium ethylenediamine tetraacetate, silicon dioxide...

AI Technical Summary

Problems solved by technology

[0002] Road marking paint is referred to as marking paint for short. It is divided into two types: hot-melt type and solvent type. Most roads in Japan use hot-melt type paint, and countries such as Europe and the United States gradually increase the amount of use. Hot-melt type marking paint on the market is often used Titanium dioxide is used as a pigment, and titanium dioxide will fade and become unclear in the long-term sunshine process, and when using it, the construction personnel also found that the raw materials are prone to agglomeration during use, which is inconvenient to use. At the same time, they also found that Some luminescent paints on the market at night will also add calcium carbonate, titanium dioxide, disodium ethylenediamine tetraacetate, silicon dioxide and other ingredients, but the preparation process is to directly mix them, and the paint obtained by direct mixing is just mixing them. The basic characteristics of the material are revealed, but in the actual use of the construction personnel, the luminous time will be short and the luminous brightness will be low. After 2-3 days of use, there will be no luminous phenomenon, and the fluorescence quenching will occur, especially In the case of high temperature, the fluorescence quenching time is shorter, and it cannot play a warning role at night. Therefore, the existing technology needs further improvement

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