| 简介 |
PROBLEM TO BE SOLVED : To provide a material which has sufficient infrared reflectivity, is excellent in thermal stability and heat resistance and does not raise concern about safety and environmental issues.
SOLUTION : An infrared reflective material is a perovskite type composite oxide which contains at least an alkaline earth metal element and at least one kind of element selected from titanium, zirconium and niobium and contains, if necessary, an element (elements) of manganese and/or iron, an element of group IIIa of the periodic table such as aluminum and gallium or the like, and zinc element or the like. The infrared reflective material is manufactured by such a method of mixing and firing a prescribed quantity of an alkaline earth metal compound and a titanium compound, and, if necessary, a manganese compound and/or an iron compound, compounds of the IIIa group in the periodic table and a zinc compound or the like. The obtained composite oxide is powdery and is utilized for various applications by being mixed with a paint and a resin composition, and is, for example, utilized for reducing a heat island phenomenon or the like by painting a roof and an outside wall of a building and by painting a road and a sidewalk.
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