earticle

영어

Titanium oxide (TiO2) is one of the most important white pigments used in the cosmetic industry. It is widely used because it efficiently scatters visible light and sun block function. Supercritical carbon dioxide (SCCO2) is nontoxic, cheap, low surface intensity and high diffusity. SCCO2 was used to coat wax onto TiO2 particles. Various temperature, pressure and processing
time were tested for surface modification. SCCO2 method and organic solvent method were compared by scanning electronic microscope (SEM), Thermal weight loss and particle size distribution was determined by a light scattering method, Surface area analysis was BET method (Brunauer-Emmett-Teller)