A road marking paint suitable for heavy-duty traffic highways and preparation method thereof

Abstract

A road marking paint suitable for heavy-duty traffic highways and a preparation method thereof. The paint includes the following raw materials: modified petroleum resin, petroleum resin, EVA resin, polyamide resin, filler, pigment, plasticizer, fiber, internal mixture Reflective glass beads, surface sprinkled reflective glass beads, the modifier of the modified petroleum resin includes SBS and epoxy acrylate. In the present invention, SBS and epoxy acrylate are used as modifiers to graft and modify petroleum resin, and the SBS and epoxy acrylate branched chains on the petroleum resin penetrate or connect SiO through molecular thermal motion. 2 Hollow microspheres form a solid three-dimensional network structure. On the one hand, it can lock the reflective glass beads to reduce migration and precipitation under external pressure. On the other hand, it can greatly improve the wear resistance of the marking paint to prevent Decrease in reflective properties caused by friction, precipitation, shedding, etc. At the same time, it is also found that the SiO2 hollow microspheres and the modified petroleum resin can synergistically improve the compressive strength of the paint.

Description

technical field [0001] The invention belongs to the technical field of road marking materials, and in particular relates to a road marking paint suitable for heavy traffic highways 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 safe and smooth traffic. Therefore, there are strict requirements on its performance. Firstly, it requires short drying time and simple operation to reduce traffic interference; secondly, it requires strong reflective ability, bright color, and strong reflective degree, so that it has good visibility during the day and night; thirdly, it has anti-skid and wear resistance, so as to Ensure driving safety and service life. [0003] Traditional marking paint types are divided into: normal temperature solvent type, heating solvent type, hot melt...

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.

Images