[KSCI] Korea Science Citation Index Service

Synthesis of High Concentrated $TiO_2$ Nano Colloids and Coating on Boron Nitride Powders

HYEIN JANG (Nadri Cosmetics R&D Center, Pyeng Taek, Korea)
KYUNGCHUL LEE (Department of Chemistry, Sungkyunkwan University, Suwon, Korea)
SUNGHO HONG (Nadri Cosmetics R&D Center, Pyeng Taek, Korea)
HONGKEUN JI (Department of Chemistry, Sungkyunkwan University, Suwon, Korea)

Publication Information

Journal of the Society of Cosmetic Scientists of Korea / v.28, no.1, 2002 , pp. 214-224 More about this Journal

Abstract

High concentrated $TiO_2$ nano colloids were synthesized by sol-gel method. Reactions were performed in $TiCl_4$ /HCl/ $H_2O$ aqueous solution and the conditions of particles such as shape, size and aggregation, etc. were controlled by polymerization and adsorption of acrylamide in surface of $TiO_2$ nano particles. And also, aminopropyltriethoxysilane was added instead of acrylamide and compared each other. The prepared colloids were well dispersed and showed the strong absorption peaks at 350nm-370nm which is blue shifted to 20-30nm, compared to macro particles. The obtained techniques from $TiO_2$ nato colloids synthesis were utilized in coating on boron nitride powders which are nonpolar and isoelectronic materials of carbon. Their surface morphology, structure, thermal stability and U. V absorption chracteristics were examined by SEM(Scanning Electron Microscopy), XRD(X-ray diffraction), TG/DTA(Thermogravimetric and Differential Thermal Analysis), UV-VIS(Ultraviolet-Visible Spectroscopy).

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KSCI

Synthesis of High Concentrated Nano Colloids and Coating on Boron Nitride Powders 고순도로 합성된 나노콜로이드 티타늄옥사이드의 BN 파우더 코팅에 관한 연구

Synthesis of High Concentrated $TiO_2$ Nano Colloids and Coating on Boron Nitride Powders