Preparation of reversible thermochromic building coatings and their properties / Yiping Ma in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 911 (12/2000)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 72, N° 911 (12/2000) . - p. 67-71 Titre : Preparation of reversible thermochromic building coatings and their properties Type de document : texte imprimé Auteurs : Yiping Ma, Auteur ; Beirong Zhu, Auteur ; Keru WU, Auteur Année de publication : 2000 Article en page(s) : p. 67-71 Note générale : Bibliogr. Langues : Américain (ame) Tags : Revêtement  Bâtiment  Peinture  Thermochromisme  Formulation  Colorant  Microencapsulation  Propriété  optique  Etude  expérimentale  thermosensible Index. décimale : 667.9 Revêtements et enduits Résumé : Thermochromic dyes reversible at normal ambient temperatures have been identified and microencapsulated using an emulsion polymerization process. By blending microencapsulated thermochromic dyes and nonthermochromic pigments with ordinary building coatings, thermochromic building coatings, in which colors change reversibly from warm tones to cool tones at about 18°C have been obtained. The application and performance properties of the coatings were measured, and it was found that adding thermochromic dyes did not degrade the properties of coatings. The aging results showed that the aging properties of the coatings were not ideal; the reasons will be given in another paper. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5587 [article]

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Study of infrared thermal images of chameleon - type building coatings / Yiping Ma in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 940 (05/2003)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 75, N° 940 (05/2003) . - p. 43-47 Titre : Study of infrared thermal images of chameleon - type building coatings Type de document : texte imprimé Auteurs : Yiping Ma, Auteur ; J. Xu, Auteur ; Beirong Zhu, Auteur ; Keru WU, Auteur Année de publication : 2003 Article en page(s) : p. 43-47 Note générale : Bibliogr. Langues : Américain (ame) Tags : Bâtiment  Absorption  énergie  Propriété  surface  Formulation  Pigment  Thermométrie  IR  Thermochromisme  Matériau  revêtement Index. décimale : 667.9 Revêtements et enduits Résumé : As reported in this article, infrared thermal images of chameleon-type building coatings were studied. The results show that when reversibly thermochromic pigments were added to normal white building coatings, so-called chaemelon-type building coatings could absorb energy from a sunlamp below a switching temperature of 20°C. The surface temperatures could reach almost the same value as that of a normal colorful building coating. The absorption stopped automatically above the switching temperature of 20°C, and the surface temperatures could be lower than that of normal colorful building coatings by about 4°C. The results from exposure to solar radiation show that when the temperature was below the switching temperature, the chameleon-type building coating could absorb almost the same amount of solar energy as an ordinary colorful coating. When the temperature was above the switching temperature, these coating could reflect more solar energy than the ordinary colorful coating, which was similar to the results from infrared thermal images. All the results show that there is some posibility that the chameleon-type building coatings could be used to create a thermally comfortable building environment. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5590 [article]

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