纳米陶瓷色料的呈色与混色问题研究

Spraying technology combined with nano ceramic pigment, which can obtain high quality ceramic designs efficiently, become the development direction of modern ceramic decoration technology. However, nano ceramic pigment color is obviously different from the traditional ceramic pigment. To understand the colors of nano ceramic pigments and their mixture, two "green - magenta - yellow - black" system of nanometer pigment are researched. The effect of the grain size, pigment/glaze interface reaction on the color of single nano ceramic pigment is studied; The effect of single pigment content, stacking sequence, interface reaction between pigment/glaze on the color of the mixed pigment is also studied. The mechanism of the chromatic aberration between micrometer pigment and nanometer pigment is researched. The nano ceramic pigment size - concentration - color corresponding relationship diagram will be obtained for the pigment sintered under the required conditions. The Project research can not only understand the color generation mechanism and its influencing factors of nano ceramic pigment, providing the theoretical basis and technological direction for inkjet printing ceramic design technology, but also develop the preparation technology and the mixing technology of nano pigments, which can create a huge application market, producing the significant economic and social benefits.

喷涂技术与纳米陶瓷色料相结合，可高效地获得高质量的陶瓷图案，成为现代陶瓷装饰技术的发展方向。但纳米陶瓷色料的呈色明显有别于传统陶瓷色料，为认识纳米陶瓷色料的呈色与混色规律，项目选择两种"青-品红-黄-黑"体系的纳米色料为研究对象，研究了色料粒径、色料/釉料界面反应对单色纳米陶瓷色料呈色的影响；单色色料的含量、叠加次序、色料/釉料界面反应等对纳米色料混色的影响规律，初步认识微米/纳米色料间的色差形成机理，获得一定烧结条件下的纳米陶瓷色料的粒径-浓度-呈色对应关系图。项目研究成果不仅有助于深入认识纳米陶瓷色料的呈色机理及其影响因素，为喷墨打印陶瓷图案的技术发展奠定理论基础和技术发展方向，而且在此基础上发展形成的纳米陶瓷制备及混色技术能够形成巨大的应用市场，产生明显的经济和社会效益。

陶瓷喷墨技术与纳米陶瓷色料相结合，可高效地获得高质量的陶瓷图案，成为现代陶瓷装饰技术的发展方向。但纳米陶瓷色料的呈色明显有别于传统陶瓷色料，为认识纳米陶瓷色料的呈色与混色规律，本课题研究了色料粒径对单色纳米陶瓷色料呈色的影响；单色色料的含量、叠加次序等对纳米色料混色的影响规律，研究结果表明，除了CoAl2O4是通过Co2+在釉料中发色，其呈色受色料粒径的影响较小外，其他如Pr-ZrSiO4，V- ZrSiO4以及硅酸锆包裹镉硒红色料，其呈色能力均随着色料粒径的下降而下降。混合后的超细色料依然能够保持其呈色性能和相应的混色关系。由于超细色料在表面的遮盖能力较强，因此，可以大幅减少色料的使用量。但是，由于色料的呈色能力随着粒径的降低而减弱，因此，混合后的超细色料的呈色能力依然弱于大粒径的，而且这种减弱无法通过增加色料的使用量来弥补。从叠色的角度看，镨黄的遮盖率优于钒蓝，烧前、烧后的颜色均偏向黄色。为获得超细镨黄色料与钒蓝色料等比例混色相近的颜色，应将遮盖力强的镨黄色料置于底层，将钒蓝色料打印在图案的上层。总之，项目初步认识微米/纳米色料间的色差形成机理，获得一定烧结条件下的纳米陶瓷色料的粒径-浓度-呈色对应关系图。项目研究成果不仅有助于深入认识纳米陶瓷色料的呈色机理及其影响因素，为喷墨打印陶瓷图案的技术发展奠定理论基础和技术发展方向，而且在此基础上发展形成的纳米陶瓷制备及混色技术能够形成巨大的应用市场，产生明显的经济和社会效益。