Flame-retardant polyurethane plastic track material and construction method thereof

Abstract

The invention discloses a flame-retardant polyurethane plastic track material and a construction method thereof, and belongs to the technical field of track construction. The flame-retardant polyurethane plastic track material is prepared from, by weight, 10-25 parts of polyisocyanate, 35-48 parts of polyether polyol, 2-10 parts of thermoplastic elastomer, 5-15 parts of a microcapsule material, 0.1-0.5 part of lead isocaprylate, 0.1-1 part of hydrated alumina, 0.2-0.5 part of PUR-101, 45-60 parts of filler, 1-1.5 parts of pigment, 10-25 parts of tackifying resin, 1-3 parts of a curing agent, 0.1-0.3 part of an antioxidant and 40-60 parts of water. Particles on the surface of a plastic track made of the flame-retardant polyurethane plastic track material are not likely to shed, the surface of the plastic track is flat, the quality of the plastic track is improved, the service life of the plastic track is prolonged, the percent of pass of the plastic track is increased to 95% or above from 82% at present, and the manufacturing cost and the use cost are reduced; besides, all adopted raw materials are environment-friendly materials, environmental pollution is avoided, and a guarantee is provided for the health and safety of sporters.

Description

technical field [0001] The invention belongs to the technical field of runway construction, and in particular relates to a durable flame-retardant polyurethane plastic runway material with self-repair function and a construction method thereof. Background technique [0002] The plastic runway is composed of polyurethane prepolymer, mixed polyether, pigments, additives, etc. The plastic runway has the advantages of good flatness, high compressive strength, appropriate hardness and elasticity, and is widely used in schools, gymnasiums and other places. At present, the line drawing paint of the plastic runway on the market is basically ordinary polyurethane enamel paint. This white paint will have serious yellowing phenomenon under the sun's irradiation. Usually, the yellowing will be obvious 2 to 3 days after the line is drawn, and This kind of line drawing paint is usually oil-based paint, which contains a large amount of organic solvents, which volatilize into the air, poll...

AI Technical Summary

Problems solved by technology

At present, the line drawing paint of the plastic runway on the market is basically ordinary polyurethane enamel paint. This white paint will have serious yellowing phenomenon under the sun's irradiation. Usually, the yellowing will be obvious 2 to 3 days after the line is drawn, and This kind of line drawing paint is usually oil-based paint, which contains a large amount of organic solvents, which volatilize into the air, pollute the atmosphere and cause harm to the human body, and the plastic runway used is easy to age due to the use of raw materials, glued materials and improper proportions. As a result, the surface layer of the plastic runway has problems such as shedding of particles and poor flatness. The plastic runway has a short service life and needs to be repaired or replaced frequently, which not only increases the cost, but also brings great inconvenience to users.