Many of the playgrounds on campus today have plastic runways that look beautiful and professional. However, relevant experts have suggested that the plastic runways laid on campus may release gases harmful to the human body, thus affecting students' physical health. In particular, today's track and field competitions are even more attractive to plastic runways. What are the aspects of the 400-meter plastic track that we usually see? Runway laying screen At present, most of the plastic used in China's plastic track is made of industrial polyurethane, which is also known as toluenediethylcyanate, or TDI for short. After the plastic is added, the adhesive and curing agent are added and laid. On the track, a plastic track was built. Both toluene diethylene cyanate, curing agent and binder are attributed to organic compounds. Under hot and strong light, they will evaporate and announce irritating gases. Originally, many teachers and classmates discovered it when they used it. They all said that they would find plastic when they were playing in the playground. It seems that many campuses have invested a lot of money in laying plastic runways. They originally intended to improve sports equipment and invented a very good place for fitness training. However, many campuses have some opposition to the use and handling of plastic venues. Some colleges and universities plastic venues are usually closed with barbed wire, in addition, we can see the stadium open time is also bound to be bound, not open 24 hours a day. The reason why the campus has to deal with the restrictions and openness of plastic venues is not only to ensure the use of education, but also a very important reason is that because the cost of plastic venues is very valuable, excessive use of campus concerns will cause damage to plastics venues. The track and field track in modern stadiums has now changed from a coal slag track to an artificial synthetic track. However, it is still a problem for an ordinary person to understand the differences in the function and characteristics of these runways with similar appearances and different data. This article will answer this question for you. The origin of "plastic runway" When designing a large-scale outdoor stadium, it is necessary for the owner to determine the detailed function and structure of each area in the stadium. A football stadium covered with natural grass or artificial grass occupies the base of the stadium, and a football court is surrounded by a regular 400-meter runway - a typical structure of an outdoor stadium. The field match equipment will be arranged in the cricket, and the sprinters will warm up and practice the usual runway and will face the stadium grandstand. In addition to the throwing areas for javelin, discus, shot and other items, and the sand bunkers for long jump and triple jump competitions, track and field venues are completely covered by synthetic materials. Although the red coal cinder track (Western tradition) is still being used by some track and field venues, the place for this raw material is now gradually being replaced by synthetic materials. The "plastic runway" is the name given to ordinary people for all synthetic materials, and in the West they are called "tartan tracks." The original “tartan track†was a hot-selling global synthetic data product announced by American manufacturers in the 1960s. The unique skills of this product make the runway provide greater protection for athletes, making the protection process simple, inventing a fair competition environment, and this skill is immediately copied by other manufacturers. Most of today's "plastic runways" still retain their original red and runway surface graininess. Originally, manufacturers were able to make runway and place boundaries into many colors. In contrast to the speed of skills upgrading of the sports surface layer of other synthetic materials, the track and field runway is not a big step in the transformation of data. For example, artificial turf products have made great progress in the past decades. The application period of an artificial turf is about 10 years. The track and field runway made of synthetic materials can be used for decades after being accurately protected and maintained. Foundation layer - invisible but feels Workers Spread EPDM Particles According to the DIN 18035-6 specification (German specification for fabrics for outdoor sports venues), the artificial composition runway shall have an asphalt layer, an elastic layer above the asphalt layer and then a final surface layer. Composition rubber particles and polyurethane are used as the adhesive for the elastic layer. The final surface of the track includes EPDM (ethylene propylene diene monomer) particles and polyurethane. The way to make the runway look grainy is to sow EPDM particles. After bonding, the edges of the EPDM extend into the polyurethane. Some runways do not have elastic layers, so the surface of the runway should be thicker. Since the materials, structures, brands, and manufacturers of the runways vary, the proper characteristics of the runway are also varied. The different combinations of various data will also affect the quality of the runway, such as UV resistance, low temperature resistance, high temperature, and durability. installation method On-site construction installation runway Different installation methods will also make a difference on the runway. There are five kinds of installation methods: on-site construction equipment type and hybrid equipment type. The third type of equipment method is to make the various elements of the runway beforehand and then transport it to the site and assemble it. The fourth type is when the track is innovated. If some of the old runways are still available, then the new runway can be covered directly. The fifth method is to complete the entire production of the runway into coils and then transport them to the site. This method requires the use of rubber for the runway data. Demand for on-site construction runways All materials are installed together at the construction site in layers, according to their aspirational strength, so that the elastic layer of the runway will hold asphalt layers together for a long period of time. The hybrid device method requires that the elastic layer be bonded to the asphalt layer in advance at the factory, and then cover the fluid layer to close the pores, and finally cover the polyurethane surface layer with the EPDM particles added. A pair of well-trained eyes can tell if the underlying surface of the runway is underneath the surface of the runway and whether the surface is properly treated. Prefabricated runway Use the machine to install the runway A fully prefabricated runway is installed like a sheet floor, and such a runway is completely different in design, material, and price from other runways. The fully prefabricated runway is a vulcanized rubber covered with a grid structure on the foundation layer. Although this track has excellent advantages, it has not been widely used. However, in the high-level events such as the international track and field competitions and the Olympic Games, such runways are an important part of the competition. As a result, countless records were born on such a track, while at the same time it provided more comfortable use to athletes and provided higher speed and energy backflow. This high-end race track is used to make career mobilizers run faster and more quickly. The runway for training is relatively softer and can provide higher shock absorption. This material can produce a variety of color runways, it can also be simply moved or removed. Unlike runways installed on site, these runways are produced entirely within the factory, so the quality of the entire runway can be kept uniform. The on-site construction of the runway may be affected by the special weather conditions during the construction phase. This fully prefabricated rubber runway can be installed in a matter of days relative to on-site construction installations and mixed installation runways. Only one continuous dry base layer is needed for installation. Another advantage of this kind of runway is that the particles above it will not be dropped by the glass.
We are specialized Auto Wipes manufacturers & suppliers/factory from China. Wholesale Auto wipes with high quality as low price/cheap.Each category represent their own group of specific products geared towards specific needs and results.All private label products are [made-to -order"according to customers requirements and market needs. Look forward to your cooperation!
Your cars delicate surfaces are too important to trust to a household cleaner. Get that natural, just detailed matte finish with our Auto Wipes. Meticulously engineered for your cars special needs, these convenient wipes lift away dirt and debris, revealing your cars rich, natural beauty without harming delicate automotive surfaces. Great for your cars dash, vinyl, fabric, carpet, consoles, leather and more. Lint-free disposable wipes wont leave a greasy residue on your hands. Features a Moisture Lock lid which guarantees Cleaning Wipes will not dry out for one year after purchase. Gentle Safe Auto Wipes,Travel Car Tissues Wipes,Eco-Friendly Auto Wet Wipes,Moisturizing Auto Car Wipes,Car Wash Wipes,Car Glass Wipe Shaoxing Extra Beauty Hygienics Co.,Ltd , https://www.cnextrabeauty.com
Plastic track material structure and installation method