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http://dx.doi.org/10.3740/MRSK.2015.25.2.61

Preparation of Fe2O3 Coated on Mica for Infrared Reflectance Red Pigment and Thermal Property of Its Isolation-Heat Paint  

Lee, Hyun Jin (Eco-composite Materials Team, Korea Institute of Ceramic Engineering & Technology (KICET))
Kim, Dae Sung (Eco-composite Materials Team, Korea Institute of Ceramic Engineering & Technology (KICET))
Lee, Seung-Ho (Eco-composite Materials Team, Korea Institute of Ceramic Engineering & Technology (KICET))
Lim, Hyung Mi (Eco-composite Materials Team, Korea Institute of Ceramic Engineering & Technology (KICET))
Choi, Byung-Ki (CQV Co.)
Kang, Kwang-Jung (CQV Co.)
Jeong, Jae Il (CQV Co.)
Cho, Kum-Sung (CQV Co.)
Publication Information
Korean Journal of Materials Research / v.25, no.2, 2015 , pp. 61-67 More about this Journal
Abstract
$Fe_2O_3$ coated plate mica($Fe_2O_3$/mica) for infrared reflectance red pigment was prepared under hydrothermal treatment. $Fe_2O_3$ was perfectly coated on mica via the difference of surface charge between $Fe_2O_3$ and mica particles at pH 3. $Fe_2O_3$/mica was then calcined at $800^{\circ}C$ to stabilize the coated layer on mica. The infrared(IR) reflectance pigments were characterized by X-ray diffraction, FE-SEM, zeta potential, and a UV-Vis-NIR spectrophotometer. In particular, the CIE color coordinate and IR reflectance properties of $Fe_2O_3$/mica pigments were investigated in relation to the thickness variation of the $Fe_2O_3$ layer coated on mica of various lateral sizes. The isolation-heat red paints containing the pigments were prepared and optimized with a thinner, settling agent, and dispersant. Then, the films were made. The thermal property of isolation-heat on these films was observed through the relationship of the IR reflectance value, which was based on the variation of the $Fe_2O_3$ layer's thickness coated on mica and mica's lateral size as IR reflectance pigment. With an increase in IR reflectance on these films, the thermal property of isolation-heat was effectively enhanced.
Keywords
infrared reflectance red pigment; $Fe_2O_3$ coated plate mica($Fe_2O_3$/mica); surface charge; thermal property; isolation-heat paint;
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