Yellowish-Brown Pigment with High near Infrared Reflective

Thadsanee  Thongkanluang; Jantharat Wutisatwongkul; Surin Prayoon

doi:10.4028/www.scientific.net/AMR.979.102

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 979Yellowish-Brown Pigment with High near Infrared...

Yellowish-Brown Pigment with High near Infrared Reflective

Abstract:

Yellowish-brown inorganic pigments having a high near infrared solar reflectance have been synthesized. In this research, Fe₂O₃ was used as the host component, whereas, the mixtures of Sb₂O₃, SiO₂, Al₂O₃, and TiO₂ were used as the guest components. The guest components were investigated over a range of 36 different compositions. The results showed that the pigment, denoted by YB32, with a composition of Fe₂O₃, Sb₂O₃, SiO₂, Al₂O₃, and TiO₂ of 65, 15, 10, 2 and 8 wt.% respectively, generated a maximum near infrared solar reflectance of 40.8% while the YB3 pigment was found to have a minimum reflectance of 29.3%. The CIE L*a*b* colour index was used to measure the yellowish-brown pigment colours. The YB32 and YB3 pigment powders were also characterized by powder X-ray diffraction technique. It was found that the YB3 powder developed a new phase, FeSb₂O₃, which is mainly responsible for the decrease in the near infrared solar reflectance.

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Periodical:

Advanced Materials Research (Volume 979)

Pages:

102-106

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.979.102

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Online since:

June 2014

Authors:

Thadsanee Thongkanluang*, Jantharat Wutisatwongkul, Surin Prayoon

Keywords:

Near Infrared Reflective, Yellowish-Brown Pigment

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