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Synthesis and Infrared Light Reflecting Characteristics of TiO2/Mica Hybrid Composites
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  • Journal title : Applied Chemistry for Engineering
  • Volume 27, Issue 1,  2016, pp.16-20
  • Publisher : The Korean Society of Industrial and Engineering Chemistry
  • DOI : 10.14478/ace.2015.1073
 Title & Authors
Synthesis and Infrared Light Reflecting Characteristics of TiO2/Mica Hybrid Composites
Kil, Hyun Suk; Rhee, Seog Woo;
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In this work, we describe the synthesis and infrared light reflecting characteristics of /mica hybrid composites. /mica composite materials were obtained by the hydrolysis and condensation reaction of titanium isopropoxide in an aqueous solution of acetic acid in the presence of mica particles. Amorphous phase of on the surface of mica was converted to the crystalline rutile phase via anatase phase by heat treatment (, 1-3 h) of /mica composite materials, and the size of crystals was controlled by heat treatment conditions. Physicochemical properties of mica and /mica composites were investigated using FE-SEM, ED-XRF, and PXRD. The solar reflectance of /mica composites in the near IR region (780~2,500 nm) measured using a diffuse reflectance NIR spectrophotometer was 88.6%, which is rather higher than that of calcined pure mica (86.6%). Therefore, /mica composites can be used as NIR light reflective pigments.
titanium dioxide;mica;light reflecting material;composite;paint pigment;
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