Preparation and solar reflectance spectra of chameleon-type building coatings

In this paper, the preparation of chameleon-type building coatings was investigated. The reversible thermochromic properties of the chameleon-type building coatings at normal temperatures were measured, and their solar reflectance spectra were measured. The results showed that the colors of the cham...

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Bibliographic Details
Published in:Solar energy 2001-01, Vol.70 (5), p.417-422
Main Authors: Ma‡, Yiping, Zhu, Beirong, Wu, Keru
Format: Article
Language:English
Subjects:
Applied sciences
Building materials
Buildings
Buildings. Public works
Chameleon-type building coatings
Exact sciences and technology
External envelopes
Solar energy
Solar reflectance spectra
Thermally comfortable building environment
Wall covering (rendering, paint, wall paper)
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Summary:In this paper, the preparation of chameleon-type building coatings was investigated. The reversible thermochromic properties of the chameleon-type building coatings at normal temperatures were measured, and their solar reflectance spectra were measured. The results showed that the colors of the chameleon-type building coatings could be changed reversibly between red, violet etc. below 18°C and white above 18°C. The solar reflectance spectra of the coatings showed that they could absorb more solar energy below 18°C than above 18°C, which indicated that the coatings had transformed between light-absorbing and light-reflecting at normal temperatures. The characteristics of the coatings could be used to create a thermally comfortable building environment.
ISSN:0038-092X
1471-1257
DOI:10.1016/S0038-092X(00)00160-2