| abstract |
One embodiment of the present invention provides a coolant capable of expressing color in radiative cooling, the coolant comprising: a first material causing radiative cooling by emitting infrared radiation; and a second material for absorbing visible light or light in an adjacent wavelength band, converting the wavelength thereof and emitting same. By applying the coolant to exterior material of vehicles, exterior walls of buildings, road pavement, transport containers, etc., the advantages of reducing energy consumption required for cooling, reducing urban heat island effects and reducing logistics costs may be provided. <Representative drawing> Figure 2 |