Let us explore together the scientific principles behind heat accumulation on artificial turf surfaces. The capacity of artificial turf to absorb solar radiation is comparable to that of roofing materials, paved surfaces, or other outdoor fixtures. The surface temperature of synthetic turf is primarily influenced by the following factors:

• High Heat Absorption: Artificial turf is manufactured from petroleum-based plastics (such as PE and PP), which possess low specific heat capacity and high thermal conductivity; consequently, they rapidly absorb heat and rise in temperature when exposed to sunlight.
• Absence of Natural Cooling Mechanisms: Unlike natural grass, synthetic turf does not dissipate heat through moisture evaporation (transpiration) and therefore lacks the ability to self-regulate its temperature.
• Heat Island Effect and Surface Heat Storage: When laid directly over concrete or asphalt substrates, the heat absorbed by the underlying base accumulates, thereby exacerbating the rise in surface temperature. Furthermore, if a dense-pile turf is selected, it can restrict air convection and reduce heat dissipation.
• Influence of Color and Reflectivity: Although dark green turf fibers reflect a portion of visible light, they absorb a significant amount of near-infrared radiation—which accounts for approximately 50% of solar thermal energy—leading to a marked increase in temperature.
• Role of Infill Materials and Density: If infill materials such as rubber granules or quartz sand (commonly used in pet turf) are utilized, these substances possess strong heat-retention properties, further driving up the surface temperature of the artificial turf.

While the surface temperature of traditional artificial turf exposed to direct sunlight can frequently exceed that of natural grass environments by 10–30°C, its “heating” is a result of passive heat absorption rather than active heat generation. Therefore, by minimizing exposure to the aforementioned factors and opting for relatively light-colored, heat-resistant turf varieties, it is possible to effectively mitigate the rise in surface temperature.