Road marking coating suitable for heavy traffic highway and preparation method of road marking coating

Abstract

The invention relates to a road marking coating suitable for a heavy traffic highway and a preparation method of the road marking coating. The coating comprises the following raw materials: modified petroleum resin, petroleum resin, EVA resin, polyamide resin, a filler, a pigment, a plasticizer, fibers, internally-mixed reflective glass beads and surface-scattered reflective glass beads, and a modifier of the modified petroleum resin comprises SBS and epoxy acrylate. SBS and epoxy acrylate are used as modifiers to graft and modify petroleum resin, SBS and epoxy acrylate branched chains on the petroleum resin penetrate through or are connected with SiO2 hollow microspheres through molecular thermal motion to form a firm three-dimensional network structure, on one hand, reflective glass microspheres can be locked, migration and precipitation under the action of external pressure can be reduced, and on the other hand, the wear resistance of the marking coating can be greatly improved, and the reduction of the reflective property caused by friction, precipitation, falling and the like is prevented. Meanwhile, the SiO2 hollow microspheres and the modified petroleum resin have the effect of synergistically improving the compressive strength of the coating.

Description

technical field [0001] The invention belongs to the technical field of road marking materials, in particular to a road marking paint suitable for heavy traffic expressways and a preparation method thereof. Background technique [0002] Road markings are mainly set on the surface of the road to regulate the passage of vehicles and pedestrians, so that they can go their own way without interfering with each other, so as to ensure the safety and smooth flow of traffic. Therefore, there are strict requirements on its performance. First of all, it requires short drying time and simple operation to reduce traffic interference; secondly, it requires strong reflection ability, bright colors and strong reflectiveness, so that it has good visibility during the day and night; thirdly, it has anti-skid and wear resistance, so Ensure driving safety and service life. [0003] The traditional marking paint types are divided into: normal temperature solvent-based, heated solvent-based, an...

AI Technical Summary

Problems solved by technology

Although this technology solves the problem of uneven dispersion of glass microspheres to a certain extent through the method of internally mixing glass beads and surface-sprinkling glass beads, the marking line has a high retroreflection coefficient, good reflective durability, and has reflective properties in rainy nights. , but traditional hot-melt coatings have poor pressure resistance and are not wear-resistant. Especially since the 21st century, my country has entered a stage of great transportation development, and the transportation industry has developed rapidly, which has gradually accelerated the development of the national economy. However, the growth of traffic volume has increased The driving of heavy-duty high-speed vehicles, the disadvantages of traditional hot-melt marking paints such as poor pressure resistance and non-wear resistance are exposed, and the wear and tear of road markings, cracks, falling off and other problems are more serious, which greatly reduces the service life of road markings. If the maintenance is not timely, it will not be able to play the role of marking, resulting in major traffic accidents, which seriously threaten the safety of people's lives and property

[0004] Therefore, in summary, it is urgent to improve the traditional hot-melt coatings and develop a road marking coating suitable for heavy-duty traffic highways. This coating not only has good reflective performance, but also has good compression resistance and wear resistance. Even on the highway with many heavy vehicles, it will not fall off due to rolling and abrasion, and the reflectivity will not decrease.

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