Its use is divided into excellent quality of artificial products. The shape of straw silk can be divided into monofilament (straight filament and curly yarn) and open mesh filament (straight filament and curly yarn). According to the type (Tex), longitudinal density (cluster / M), transverse density (row / M), and strand height (mm), different specifications are distinguished.
The technical requirements of artificial grass for sports, such as specification, size and deviation, appearance, physical and mechanical properties, water permeability, flame retardancy, friction coefficient, environmental protection requirements, acid and alkali resistance, organic matter resistance, photochemical resistance, abrasion resistance of straw silk, etc., shall meet the relevant requirements of national standard GB / t20394-2006.
Appearance: the surface is basically flat without obvious unevenness; the density is uniform without obvious needle exposure; there is no obvious color difference; there is no obvious glue spot on the surface of straw silk, and the glue is basically uniform without damage; the longitudinal and transverse spacing is uniform, without obvious skew line and jumper; the lawn joint is flat and firm; the grass seedling is soft and comfortable, full of elasticity, and has good safety and anti trampling impact 。
The performance requirements of the interaction between football and artificial turf meet the requirements in the table below
Performance table of football and artificial turf
The performance requirements of the interaction between athletes and artificial turf meet the requirements in the table below
Performance table of artificial turf athletes
Tensile strength and connection strength: the tensile strength of turf bottom lining and the connection strength of joints were greater than 15N / mm.
Water seepage rate: the seepage rate of site surface layer after pavement is greater than 3mm / min
Slope: the slope at right angle to the long axis of the site. The site without water seepage function shall not be greater than 8 ‰, and the site with water seepage function shall not be greater than 3 ‰.
Flatness: the local ground shall not be uneven, and the gap shall not be greater than 10 mm within the range of 3 m diameter.
Drainage: 20 minutes after the rain stops, there should be no water on the lawn floor.
Sand irrigation technology: fill the grass seedlings with round sand particles, and it is better to fix the grass seedlings with quartz sand so that the grass seedlings do not fall. Generally, sand is poured until about 1.5 cm is left. Rubber particles are spread on the surface of grass seedlings, and the spreading should be uniform. No sand with edges shall be poured between grass seedlings to prevent athletes from being injured.
Marking line: the marking line should be clear and non reflective. The marking line can be directly woven in the lawn or can be sewn on site. The joint should be paved with strong adhesive tape or sewn connection, and can not be directly adhered to the foundation.
