| 摘要 |
An organic-inorganic complex powder of which an organic UV protector and metal oxide are mixed and dipped in a mesoporous silica molecule is provided to increase UV protection effect and the protection area of UV-A and UV-B, and improve stability. An organic-inorganic complex is made by dipping a metal oxide and organic UV protector in a pore of mesoporous silica molecule The metal oxide is an UV-B protection component of cerium oxide(CeO2) or titanium oxide(TiO2) and UV-A protection component of ferric oxide(Fe2O3) or zinc oxide(ZnO). The organic UV protector is a cinnamate, salicylate, benzophenone, triazine or the triazone based UV protector. The silica molecule is a porous silica having 200~900m^2/g of specific surface area, 0.3-1.5cc/g of pore volume(Vp), and 5-15nm range of pore size. A method for manufacturing the mesoporous organic-inorganic complex powder comprises: a step of dipping the mesoporous silica molecule in solution in which the cerium chloride or titanium alkoxide is resolved to produce a metal oxide-dipped mesoporous complex powder which protects the UV-B; a step of dipping the produced powder in solution in which a ferric chloride or zinc chloride is resolved to produce a metal oxide-dipped mesoporous complex powder which protects the UV-A; and a step of mixing 1-26 weight% of complex powder and organic UV protector.
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