2021 Fiscal Year Final Research Report
Novel Black Heat-shielding Inorganic Pigment
| Project/Area Number |
19K05668
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 36020:Energy-related chemistry
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| Research Institution | Tottori University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 顔料 / 色材 / 遮熱 / 黒色 / 複合酸化物 |
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| Outline of Final Research Achievements |
Novel inorganic black heat-shielding pigments, Ca2Mn0.85-xTi0.15ZnxO4-x (0 < x < 0.10) and Ce1-xGdxVO4 (0 < x < 0.30) were synthesized to realize not only near-infrared reflection to suppress temperature rise, but also visible light absorption to exhibit black color. As a result, it was clarified that the pigments synthesized in this study all showed higher near-infrared reflectance than the commercially available products leading to excellent heat-shielding properties, even though they were all black.
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| Free Research Field |
無機材料化学
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| Academic Significance and Societal Importance of the Research Achievements |
黒色を呈する顔料は，そのほとんどが可視光と同時に近赤外光を吸収してしまうので，熱を帯びやすいことが知られている．例えば，日射吸収率が高いアスファルト舗装路面は色が黒く，都市部などで問題となっているヒートアイランド現象の一因とされており，その緩和・解消が求められている．本研究で開発した新顔料は黒いにもかかわらず近赤外線を反射するため，熱をため込みにくいことから，上記の解題を解決できる新しい黒色顔料として期待できる．
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