Single-component water-based top-coat for plastic runway and preparation method thereof

Abstract

The invention discloses a single-component water-based top-coat for a plastic runway. The single-component water-based top-coat is prepared from the following raw materials in parts by weight: 45-55 parts of waterborne acrylic resin, 30-40 parts of waterborne polyurethane resin, 1-5 parts of a water-soluble graphene aqueous dispersion, 0.3-0.5 part of a wetting agent, 0.2-0.4 part of a defoaming agent, 5-7 parts of a cosolvent, 0.3-0.5 part of a thickening agent, 0.5-0.7 part of a preservative and 3-6 parts of deionized water. The single-component water-based top-coat for the plastic runway has the advantage of relatively good wear resistance; the invention also provides a preparation method of the single-component water-based top-coat, and the graphene in the raw materials can be uniformly dispersed in the single-component water-based top-coat, so that the wear resistance of the top-coat is improved.

Description

technical field [0001] The invention relates to the field of water-based functional coatings, more specifically, it relates to a one-component water-based finish paint for a plastic runway and a preparation method thereof. Background technique [0002] The plastic track is also called the all-weather track and field track. It is composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or PU particles, pigments, additives, and fillers. The plastic runway has the characteristics of good flatness, high compressive strength, appropriate hardness and elasticity, and stable physical properties. It is conducive to athletes' speed and technical performance, effectively improving sports performance and reducing the rate of falls. On the surface of the plastic runway, the runway is generally divided by spraying topcoat, so that people can exercise along their respective runways. [0003] Compared with the two-component water-based topcoat, the on...

AI Technical Summary

Problems solved by technology

But be subjected to the influence of graphene self property, make above-mentioned technology have following defect: one, the concentration of graphene is very important influence factor to the abrasion resistance of floor finish paint, because there is bigger gap between graphene sheets Van der Waals' force is easy to gather, which makes the concentration of graphene in the floor paint uneven, so that the wear resistance of the floor paint is not uniform, thereby affecting the quality of the floor paint; second, the graphene sheet layer Aggregation will cause graphene to settle in its dispersion, resulting in a concentration gradient. When adding graphene dispersion, it is easy to make the actual amount of graphene added insufficient or too much, so that the graphene contained in the ground paint Concentration was different than expected, resulting in the floor finish not achieving the expected abrasion resistance