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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
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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.
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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:
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参考文献:
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