Environment-friendly polyurethane coating layer for synthetic court and preparation method thereof

Abstract

The invention relates to an environment-friendly polyurethane coating layer for a synthetic court, which consists of an ingredient A and an ingredient B, wherein the ingredient A consists of polyether polyol, crosslinking chain extendors, catalysts, filling materials, pigment and plasticizers, and the ingredient B consists of performed polymers made from polyether polyol, isocyanate, chemical inhibitors and ultraviolet ray absorbing agents. When the environment-friendly polyurethane coating layer is used, the ingredient A and the ingredient B can be mixed to obtain the polyurethane coating layer for the synthetic court in a weight ratio A:B=100:50-75. The invention successfully applies the polyurethane coating layer which has the advantages of high intensity, high wear resistance, strong shielding power and no solvent and is convenient for repairing to the synthetic court, solves the problem that the synthetic court usually has color difference and surface abrasion, and lays a solid foundation for prolonging the service life of the synthetic court. Meanwhile, the polyurethane coating layer does not contain toxic or harmful catalysts and belongs to the environment-friendly polyurethane coating layer products.

Description

technical field [0001] The invention belongs to the field of polyurethane, in particular to a polyurethane environmental protection coating for plastic courts and a preparation method thereof. Background technique [0002] At present, with the rapid development of my country's economy, the popularity of plastic courts in sports venues has become higher and higher due to their outstanding sports performance, and their potential is huge. But at present, there are the following problems in the construction and use of plastic courts: First, the construction period of polyurethane courts is long, and at the same time, more plastic raw materials are required, resulting in color difference at the junction of the site where the construction interval is too long, and when the color of the plastic material varies When it fluctuates, the color consistency of the court will also face a big problem; the second is: the plastic court is mostly used outdoors, and its surface layer is easily...

AI Technical Summary

Problems solved by technology

But at present, there are the following problems in the construction and use of plastic courts: First, the construction period of polyurethane courts is long, and at the same time, more plastic raw materials are required, resulting in color difference at the junction of the site where the construction interval is too long, and when the color of the plastic material varies When it fluctuates, the color consistency of the court will also face a big problem; the second is: the plastic court is mostly used outdoors, and its surface layer is easily damaged by acid, alkali and sports force, which reduces its performance and causes the surface of the court to be frosted. shape, and this kind of place is more prone to wear and tear, which makes the service life of the plastic court significantly reduced

But this not only affects the construction progress, but also it is difficult to solve the problem of chromatic aberration of the court when the plastic material itself has chromatic aberration; for the latter, basically there is no good solution, only to cut off the severely worn parts and re-pave