Yellowish-brown inorganic pigments having a high near infrared solar reflectance have been synthesized. In this research, Fe203was used as the host component, whereas, the mixtures of Sb203, Si02, A1203, and TiC>2 were used as the guest components. The guest components were v investigated over a range of 36 different compositions. The results showed that the pigment, denoted by YB32, with a composition of Fe203, Sb2C>3, Si02, A1203, and Ti02 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 CEE 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, FeSb203, which is mainly responsible for the decrease in the near infrared solar reflectance.
Welcome
Business hours 08:30 - 16:30 on business days and hours. Saturday-Sunday from 08:30 - 16:30 according to the academic calendar.
The Dean of the Faculty of Science and Technology's office is located in the Faculty of Science and Technology building. Surat Thani Rajabhat University 272 Moo 9, Khun Thale Subdistrict, Mueang District, Surat Thani Province 84100.
