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https://hdl.handle.net/20.500.14094/90006969
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2024-04-25
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90006969 (fulltext)
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メタデータID
90006969
アクセス権
open access
出版タイプ
Version of Record
タイトル
Influence of dirt and coating deterioration on the aging of solar reflectance of high-reflectance paint
著者
Aoyama, Taizo ; Sonoda, Takeshi ; Takebayashi, Hideki
著者名
Aoyama, Taizo
著者名
Sonoda, Takeshi
著者ID
A0928
研究者ID
1000080304129
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=4f27dcc99bdf8746520e17560c007669
著者名
Takebayashi, Hideki
竹林, 英樹
タケバヤシ, ヒデキ
所属機関名
工学研究科
収録物名
AIMS Materials Science
巻(号)
6(6)
ページ
997-1009
出版者
AIMS Press
刊行日
2019-10-22
公開日
2020-03-30
抄録
Cool-roof coatings have received considerable attention worldwide as a solution for the "heat island" effect in urban areas. The solar reflectance of roofs coated with high-reflectance paint is reduced by dirt. We continuously measured the solar reflectance of a roof coated with high-reflectance paint with and without a self-cleaning function for more than two years. The solar reflectance of self-cleaning paint decreased by 0.5% per month over two years, due to the effect of dirt. The solar reflectance of conventional paint decreased by 4% per month over four months after coating and then reached a value similar to that for the self-cleaning paint for two years due to deterioration. With a slight decrease in solar reflectance, the self-cleaning function is effective in mitigating the heat island effect and obtaining continuous energy-savings. We applied the alkyl silicate system as self-cleaning for high-reflectance paint, the solar reflectance was measured continuously at 1 minute intervals, and the actual state of the fluctuation in reflectance over the short and long terms was analyzed with the influence of the altitude of the sun. The deterioration of the coating was also investigated by gloss retention and chalking test.
キーワード
high-reflectance paint
solar reflectance
heat island effect
aging
self-cleaning
dirt
deterioration
カテゴリ
工学研究科
学術雑誌論文
権利
© 2019 the Author(s), licensee AIMS Press.
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
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資源タイプ
journal article
言語
English (英語)
ISSN
2372-0468
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eISSN
2372-0484
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関連情報
DOI
https://doi.org/10.3934/matersci.2019.6.997
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