SiO2 photonic crystal structure color coating and preparation process thereof

The invention discloses a SiO2 photonic crystal structure color coating and a preparation process thereof. The preparation method comprises the following steps: by taking ethyl orthosilicate as a silicon source, absolute ethyl alcohol as a solvent and sodium chloride as a modifier, reacting at normal temperature to obtain a modified SiO2 suspension, preparing a low-temperature glaze material, glazing on a ceramic substrate, and drying, self-assembling, depositing and thermally treating obtained silicon oxide sphere particles to obtain a SiO2 photonic crystal ceramic glaze. The method is simplein process, short in period, simple in equipment and relatively low in firing temperature, so that the cost is relatively low, and the obtained glaze has structural color and good adhesive force, andis beneficial to widening the application field of the structural color film. 本发明公开了一种SiO光子晶体结构色涂层及其制备工艺，以正硅酸乙酯为硅源，无水乙醇为溶剂，以氯化钠为改性剂，在常温下反应，得到改性SiO悬浮液，配制低温釉料并施釉于陶瓷基底上，得到的氧化硅球体颗粒经过烘干、自组装沉积及热处理后，获得SiO光子晶体陶瓷釉。该方法工艺简单、周期短、设备简单、烧成温