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

摘要

The present invention has excellent sunlight (heat) absorption capability, can be used as a low-cost, high-performance heat absorption / storage material with a simple structure, and also has easy solar (heat) absorption / dimming capability. It is an object of the present invention to provide a solar (heat) absorber that can be used as a solar (heat) absorption / dimming material that can be changed. The sunlight (heat) absorber was measured with a CIE-Lab color system (light source D65) in a liquid medium having a specific heat of 0.4 to 1.4 cal / g / ° C. and a melting point of 5 ° C. or less. Particles having an L * value of 30 or less are dispersed.