Pavement coating layer and forming method thereof

Abstract

The invention discloses a pavement coating layer and a forming method thereof. The pavement coating layer comprises a bonding layer and a wear-resistant layer which are arranged from bottom to top; the bonding layer comprises 20-35 parts by weight of epoxy resin and 8-15 parts by weight of a curing agent; the wear-resistant layer comprises the components in parts by weight: 100 to 160 parts of bi-component oily polyurethane, 20 to 35 parts of calcium carbonate, 14 to 25 parts of a corrosion-resistant filler, 0.7 to 1.5 parts of a defoaming agent and 6 to 12 parts of a pigment, wherein the epoxy equivalent of the epoxy resin is 180 to 198 g / mol, and the viscosity of the epoxy resin is 10900 to 15100 mPa*s; the curing agent is a modified aliphatic amine curing agent, the amine value of the curing agent is 280-320 mgKOH / g, and the viscosity of the curing agent is 35-55 mPa*s; the bi-component oily polyurethane comprises a component A containing an isocyanate group and a component B containing a hydroxyl group. The pavement coating layer not only has good weather resistance and abrasion resistance, but also has good bonding performance.

Description

technical field [0001] The present invention relates to a pavement coating and a method for forming the same. Background technique [0002] With the innovation of technology, there are more and more researches on polymer road coatings. Most of the research is to use epoxy resin, acrylic resin, phenolic resin, etc. as bonding materials, and use calcium carbonate, diatomite, organic bentonite, etc. as fillers. However, due to the poor weather resistance of epoxy resin, acrylic resin, phenolic resin and other resins, it is necessary to add anti-ultraviolet aging agent, anti-corrosion agent, etc., resulting in complicated preparation process and construction method. At the same time, it is also necessary to add a large amount of fillers, which leads to a decrease in the adhesion performance of the formed coating and a short service life of the coating. [0003] To sum up, it is necessary to provide a pavement coating with not only good weather resistance and wear resistance, b...

AI Technical Summary

Problems solved by technology

However, due to the poor weather resistance of resins such as epoxy resin, acrylic resin, and phenolic resin, it is necessary to add anti-ultraviolet aging agents, corrosion-resistant agents, etc., resulting in complicated preparation processes and construction methods.

At the same time, it is also necessary to add a large amount of fillers, resulting in a decrease in the bonding performance of the formed coating and a short service life of the coating.

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