硅酸盐学报

反相微乳液法制备高溶度ZrO_2陶瓷墨水(Ⅱ)

作者：郭瑞松齐海涛陈贤礼杨正方陈玉如

单位：天津大学材料学院天津大学材料学院天津大学材料学院天津大学材料学院天津大学材料学院天津300072 天津300072 天津300072 天津300072 天津300072

关键词：陶瓷墨水反相微乳液制备工艺理化性能

分类号：TQ638

出版年,卷(期):页码：2002,30(5):559-563

DOI：

摘要：

对喷墨打印成型用ZrO2 陶瓷墨水的反相微乳液制备法进行了研究。采用已经优化的Tritonx -10 0 /正己醇 /环己烷 /水反相微乳液体系 ,以氧氯化锆溶液和氨水溶液分别替代水 ,获得了澄清的微乳液 ,再将它们均匀混合反应制得了均匀分散、微粒尺寸 7～ 8nm、稳定存在的ZrO2 陶瓷墨水。针对喷射打印墨水的理化性能要求 ,考察了所制备的ZrO2 陶瓷墨水的理化性能 (流变性能、表面张力、电导率、稳定性等 ) ,并对性能改善进行了探讨。所制两个陶瓷墨水当pH <8时 ,电导率分别为 2 0mS/m和 3 5mS/m ,表面张力分别为 2 1.6mN/m和 3 4.3mN/m左右 ,粘度为 2 5mPa·s和 3 2mPa·s,且无剪切增稠效应。这些结果说明 :所制陶瓷墨水的性能指标基本满足非连续式打印机要求。从透光率测试结果表明 :所制陶瓷墨水属反相微乳液

The Triton x-100/n_hexanol/cyclohexane/water reverse microemulsion system was chosen to prepare a high concentration ZrO 2 ceramic ink. ZrOCl 2·8H 2O solution and NH 3·H 2O solution were added to the system respectively and two clear reverse microemulsions were obtained after stirring intensively. Then the ZrO 2 ceramic ink was readily prepared by reaction after mixing the two reverse microemulsions uniformly. The inks with the particle size of 7-8 nm are very stable and uniformly dispersed. The physicochemical properties of the ZrO 2 ceramic ink, such as viscosity, surface tension, conductivity, stability, etc . were determined and optimized through several ways. The conductivities of the two prepared inks are 20 mS/m and 35 mS/m respectively when the pH value is lower than 8. The surface tensions are 21.6 mN/m and 34.3 mN/m and the viscosities are 25 mPa·s and 32 mPa·s respectively. No shear thickening is found. It is revealed from the transparency spectra results that the ceramic ink is a reverse microemulsion. The size and morphology of the ZrO 2 nanoparticles in the reverse microemulsion were observed by TEM.

基金项目：

国家自然科学基金资助项目 (5 9972 0 2 3 )

作者简介：

参考文献：

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