A kind of formula of polyurethane microporous elastic playground material and its preparation method

Abstract

The invention discloses a material formula of a polyurethane micro-porous elastic playground and a preparation method of the material formula. The formula is composed of a first component and a second component, wherein the weight ratio of the first component to the second component is 1:3; the first component is composed of the following ingredients in percentage by mass: 60-80 percent of polyether polyol and 20-40 percent of MDI-50; the second component is composed of the following ingredients in percentage by mass: 30-40 percent of paraffin, 10-20 percent of polyether polyol, 40-50 percent of talcum powder, 1-3 percent of iron oxide red and 1-3 percent of white carbon black. By virtue of the formula, in the mixing and stirring processes of the first component and the second component, water is added to promote gelatinizing of a product, so that the odor of the product is reduced, and meanwhile, the environmental pollution is greatly reduced; a material prepared according to the formula is slightly foamed, so that raw materials are saved, and the production cost is reduced; moreover, pores are formed inside the materials, so that the air pressure generated by evaporation of water on the ground surface can be buffered, and a site can be effectively prevented from being foamed in the using process.

Description

technical field [0001] The invention relates to the field of chemical materials used in sports fields, in particular to a polyurethane microporous elastic sports field material formula and a preparation method thereof. Background technique [0002] There are two types of pavement materials for existing sports venues. One is rigid materials, which are low in price and scrub-resistant, but poor in toughness, easy to peel, and easy to peel off; the other is polyurethane elastic materials, which are now widely used. Paving materials are still traditional solvent-based two-component polyurethane materials, and aromatic chemicals such as toluene and xylene are usually used as solvents and construction thinners. The amount of solvents and thinners accounts for about 20-25% of the total weight of paving materials. %, the amount of raw materials is large, and the resource consumption is large; in the mixing process of the two components of A and B, it is necessary to add an organic m...

AI Technical Summary

Problems solved by technology

[0002] There are two types of pavement materials for existing sports venues. One is rigid materials, which are low in price and scrub-resistant, but poor in toughness, easy to peel, and easy to peel off; the other is polyurethane elastic materials, which are now widely used. Paving materials are still traditional solvent-based two-component polyurethane materials, and aromatic chemicals such as toluene and xylene are usually used as solvents and construction thinners. The amount of solvents and thinners accounts for about 20-25% of the total weight of paving materials. %, the amount of raw materials is large, and the resource consumption is large; in the mixing process of the two components of A and B, it is necessary to add an organic metal catalyst to speed up the gelation of the product. The elasticity of the sports field is small, which cannot protect the athlete's body well, and after a period of use, the surface of the sports field may blister, which seriously affects the service life of the sports field