SOLAR LIGHT (HEAT) ABSORBING MATERIAL, AND HEAT ABSORBER/STORAGE MATERIAL AND SOLAR LIGHT (HEAT) ABSORBER/CONTROL MATERIAL EACH COMPRISING THE SOLAR LIGHT (HEAT) ABSORBING MATERIAL

摘要

Disclosed is a solar light (heat) absorbing material which has an excellent solar light (heat)-absorbing ability and has a simple structure, and therefore can be used as an inexpensive and high-performance heat absorber/storage material and a solar light (heat) absorber/control material that can alter a solar light (heat) absorbing/controlling ability readily. The solar light (heat) absorbing material comprises a liquid medium and particles dispersed in the liquid medium, wherein the liquid medium has a specific heat of 0.4 to 1.4 cal/g/°C and a melting point of 5°C or lower and each of the particles has an L* value of 30 or less as measured by employing a CIE-Lab color system (light source D65).