Tailoring of the Chemical Resistance of Chrome Yellow Particles by Silica Coating

안료의 내약품성 향상을 위한 황연입자의 실리카 피복에 관한 연구

  • Lee, Seewoo (UKSEUNG CHEMICAL Co., LTD.) ;
  • Kim, Seongsoo (Department of Precision & Mechanical Engineering and Eco-Friendly Heat & Cooling Energy Mechanical Research Team, BK21, Gyeongsang National University) ;
  • Kim, Dong-Uk (School of Nano and Advanced Materials Engineering, Changwon National University) ;
  • Wang, Lin (School of Nano and Advanced Materials Engineering, Changwon National University) ;
  • Choi, Heekyu (School of Nano and Advanced Materials Engineering, Changwon National University)
  • 이시우 ((주) 욱성화학) ;
  • 김성수 (경상대학교 BK21 친환경냉열에너지기계연구사업팀) ;
  • 김동욱 (창원대학교 나노신소재공학부) ;
  • 왕림 (창원대학교 나노신소재공학부) ;
  • 최희규 (창원대학교 나노신소재공학부)
  • Received : 2008.03.20
  • Accepted : 2008.05.09
  • Published : 2008.06.10


Herein, we synthesized silica-coated chrome yellow particles having improved chemical resistance. The intermediate with a good dispersion stability was prepared and the chemical resistance of the final product was investigated. The effects of pH and temperature, as the main parameters influencing the formation of particles, the reduced particle size by homogenizer on the silica coating were investigated. The change in the particle morphology by temperature and pH was also studied. As the results, small and monodisperse particles were achieved at low pH and high temperature. Good silica coating was obtained when used reduced size of the particles by homogenizer. Furthermore, the sufficient silica coating by microencapsulation was obtained at 9~10 pH and the temperature above $90^{\circ}C$.


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