Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Preparation of Fe4[Fe(CN)6]3 Coated on Mica or TiO2/Mica for Infrared Reflective Blue Pigments and Isolation-heat Properties of These Paints

Fe4[Fe(CN)6]3가 코팅된 Mica 또는 TiO2/Mica 적외선 반사용 청색안료 제조 및 이 도료의 차열 특성 평가

  • Jung, Ha-Young (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology(KICET)) ;
  • Kim, Dae Sung (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology(KICET)) ;
  • Lee, Hyun-Jin (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology(KICET)) ;
  • Lee, Seung-Ho (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology(KICET)) ;
  • Lim, Hyung Mi (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology(KICET)) ;
  • Choi, Byung-Ki (CQV Co.) ;
  • Kang, Kwang-Jung (CQV Co.) ;
  • Choi, Jin-Sub (Department of Chemical Engineering, Inha University)
  • 정하영 (한국세라믹기술원 에너지환경소재본부 에코복합소재센터) ;
  • 김대성 (한국세라믹기술원 에너지환경소재본부 에코복합소재센터) ;
  • 이현진 (한국세라믹기술원 에너지환경소재본부 에코복합소재센터) ;
  • 이승호 (한국세라믹기술원 에너지환경소재본부 에코복합소재센터) ;
  • 임형미 (한국세라믹기술원 에너지환경소재본부 에코복합소재센터) ;
  • 최병기 ((주)CQV) ;
  • 강광중 ((주)CQV) ;
  • 최진섭 (인하대학교 화학공학과)
  • Received : 2013.08.30
  • Accepted : 2013.11.12
  • Published : 2013.12.27
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Abstract

$Fe_4[Fe(CN)_6]_3$ coated on a mica or $TiO_2$/mica surface as infrared reflective blue pigment was prepared by a hydrothermal method. $Fe_4[Fe(CN)_6]_3$, used as coloring agent, was uniformly coated on mica or $TiO_2$/mica under the optimized condition of a 1.2 : 1 weight ratio between iron(III) chloride hexahydrate and potassium ferrocyanidetrihydrate at the initial pH level of 4.5 at $70^{\circ}C$. The infrared (IR)-reflective pigments were characterized by SEM, Zeta-potenial, FT-IR, and UV-VIS NIR spectrophotometry. Especially the CIE color coordinate and total solar reflectance(TSR) properties of the pigments were investigated in relation to variation of the coating and coated substrate thicknesses. Isolation-heat paint was prepared with 20 wt% blue pigments fully dispersed in acryl-urethane resin and several additives to coat the film uniformly. The films were also measured with CIE color coordinate, TSR, and the surface temperature was recorded by an isolation-heat measuring system. The pigments and films of $Fe_4[Fe(CN)_6]_3$ coated on mica and $TiO_2$/mica showed high TSR values compared with the TSR value of $Fe_4[Fe(CN)_6]_3$ itself. According to the increase of TSR value, the property of isolation-heat is effective. To realize the optimal blue color, we applied the the pigment to $TiO_2$ coated mica(TM(b)) which has blueish interference color. The pigment of $Fe_4[Fe(CN)_6]_3$ coated on TM(b) shows a strong blue color compared with that of $Fe_4[Fe(CN)_6]_3$ coated on $TiO_2$/Mmca(TM(w)), which has a whitish interference color.

Keywords

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