Material for plastic track and preparation method thereof

Abstract

The present invention relates to the field of plastic runways. Aiming at the problem that plastic runways are easily eroded by sunlight and rainwater and aging, a material for plastic runways is provided, which includes component A and component B. The ratio of component A to component B is 1:1‑2; Part A includes the following parts by mass: polyether polyol 430‑450 parts; plasticizer 185‑195 parts; polyurethane curing agent 370‑375 parts; part B includes the following parts by mass Number of components: polyether polyol 470-485 parts; plasticizer 530-540 parts; dispersant 0.5-1 part; chain extender 100-105 parts; iron oxide red 35-40 parts; pigment 3-4 parts 160-180 parts of pottery clay; 800-820 parts of powder; 0.5-1 part of chain extension accelerator; 30-40 parts of methyl o-hydroxybenzoate; 3-5 parts of cellulose triacetate; 1 part of fatty alcohol polyoxyethylene ether ‑2 servings. By adding methyl o-hydroxybenzoate, cellulose triacetate and fatty alcohol polyoxyethylene ether to cooperate together, the tensile strength of the plastic runway is not easily affected by sunlight and rain, which is beneficial to prolong the service life of the plastic runway.

Description

technical field [0001] The invention relates to the field of plastic track, more specifically, it relates to a material for a plastic track 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, which is conducive to the performance of athletes' speed and technology. [0003] However, since the plastic runway is generally set in an outdoor open-air environment, it will be exposed to sunlight and rain for a long time, so that the plastic runway is easily eroded by ultraviolet rays and rainwater, and the tensile strength of the plastic runway is easily affected, making the plastic runway The s...

AI Technical Summary

Problems solved by technology

[0003] However, since the plastic runway is generally set in an outdoor open-air environment, it will be exposed to sunlight and rain for a long time, so that the plastic runway is easily eroded by ultraviolet rays and rainwater, and the tensile strength of the plastic runway is easily affected, making the plastic runway The service life of the runway is easily affected, so it is extremely important to improve the anti-ultraviolet performance and waterproof performance of the plastic runway

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