High weather-resistant hot melting reflection type pavement marking paint

Abstract

A hot-melt reflective pavement marking paint with high weather resistance, which is composed of thermoplastic resin, filler, reflective material, pigment and additives, wherein: Among them: thermoplastic resin is C ₅ Petroleum resin; the filler is quartz sand and calcium carbonate powder with different particle size distribution; the reflective material is glass beads; the pigment is titanium dioxide or medium chrome yellow; the auxiliary agent is plasticizer, ultraviolet absorber, dispersant, thixotropic agent constitute, of which: The beneficial effect of the invention is that it is suitable for use in high-altitude areas, is resistant to large temperature differences between day and night, has strong anti-ultraviolet rays, and significantly improves the performance of anti-aging and anti-cracking of road marking coatings.

Description

technical field [0001] The invention relates to a road marking paint, which is mainly applied to various road traffic markings drawn on highways, and can also be applied to various road traffic markings drawn in urban roads, integration, ports, factories and mines, etc., especially The formulation of pavement marking paint used in harsh regional climate conditions such as high altitude and large temperature difference. Background technique [0002] Road marking paint is a paint used for marking roads, urban roads, airports, ports, factories and mines, residential quarters, parking lots and other traffic markings. It has the characteristics of excellent rolling, wear resistance, alkali resistance, water resistance, good weather resistance, anti-slip, and good visibility. Road marking is one of the important safety facilities for road traffic. It is used to regulate the passage of vehicles and pedestrians, so that they can go their own way without interfering with each other,...

AI Technical Summary

Problems solved by technology

[0008] (1) Hot-melt paint markings have good adhesion on asphalt pavement, but poor adhesion on cement pavement

The main reason is that the hot-melt coating is a thermoplastic material, which expands with heat and contracts with cold, and has poor temperature variability. The coating contains a large amount of stone powder filler, resulting in poor adhesion of the marking line. It is necessary to spray primer first to enhance the adhesion between the marking line and the ground. The solvent volatilizes and pollutes the environment. After the primer is dry, the hot-melt paint can be scraped and marked

[0009] (2) The cracking and aging of the marking line of hot melt coating are serious

Changes in temperature will cause the thermal expansion and contraction of the marking line, and the cracks will fall off after long-term use. The surface of the marking line is rough, easy to adhere to asphalt soil, and the anti-pollution performance is poor, especially on the side of the expressway. Snow-white, bright and eye-catching use requirements

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