| abstract |
The present invention provides a material that has sufficient infrared reflectivity, is excellent in thermal stability and heat resistance, and has no concern about safety and environmental problems. The infrared reflective material of the present invention contains at least an alkaline earth metal element and at least one element selected from titanium, zirconium and niobium, and optionally contains manganese and / or iron elements, aluminum, It is a perovskite complex oxide containing elements of Group IIIa of the periodic table such as gallium, zinc element and the like. The infrared reflective material of the present invention is prepared by mixing a predetermined amount of an alkaline earth metal compound and a titanium compound and, if necessary, a manganese compound and / or an iron compound, a periodic table group IIIa compound, a zinc compound, and the like. Since the obtained composite oxide is in the form of powder, it can be blended into paints and resin compositions and applied to various uses, such as the roof and exterior walls of buildings, roads and sidewalks. Or can be used to alleviate the heat island phenomenon. [Selection] Figure 2 |