Sunlight (heat) absorption material, heat absorption / storage material using the same, and sunlight (heat) absorption / light control material

摘要

The present invention purports to provide a solar light (heat) absorption material which has an excellent solar light (heat) absorbing ability and a simple structure, and being usable as a low-cost and high-performance heat absorption/accumulation material, the inventive material being usable also as a solar light (heat) absorption/control building component that allows easy change of its solar light (heat) absorption/control ability. The material comprises particles dispersed into a liquid medium having a specific heat ranging from 0.4 to 1.4 cal/g/°C and a melting point of 5°C or lower. The dispersed particles have L*value of 30 or less as determined by the CIE-Lab color system (light source D65).