反相微乳液法制备高溶度ZrO_2陶瓷墨水(Ⅰ)

PREPARATION OF HIGH CONCENTRATION CERAMIC INK FOR JET-PRINTING FORMING (I)

尝试采用新颖的反相微乳液法制备陶瓷墨水 ,为了获得高溶度陶瓷墨水 ,对反相微乳液体系优选进行研究 ,着重就Tritonx -10 0 /醇 /烷 /水体系 ,采用目测法、分光光度法、电导率法和离心分离法 ,分别考察了不同醇、烷配伍时体系的稳定性和相关物理性质 ,根据这些性质是否突变以确定体系是否发生相变 ,给出了体系拟三元相图。实验表明 ,在 2 0℃时Tritonx -10 0 /正己醇 /环己烷 /水反相微乳液体系表现优异 ,当Tritonx -10 0与正己醇的质量比为 3∶2时达到最大范围的反相微乳液区 ,最大溶水量时的最佳组成为Tritonx -10 0∶正己醇∶环己烷∶水 =19.1%∶12 .8%∶2 3 .7%∶44 .4% (质量比 )。

A novel method, reverse micro_emulsion, was applied to preparing ceramic ink. Triton x-100/alcohol/alkane/water reverse micro_emulsion system was chosen. Different kinds and amounts of alcohol and alkane were selected and mixed to form the reverse micro_emulsions after intensively stirring. The stability, conductivity and transparency of the systems were investigated by using visual observation, conductivity meter and spectrophotometer. The reverse micro_emulsion areas in the quasi_ternary phase diagram of the systems were determined based on the measured properties. It is shown that the triton x-100/ n _hexanol/cyclohexane/water reverse micro_emulsion system exhibits an excellent behavior in enhancing water_dissolving amount at 20 ℃. The best composition at the maximum water content was obtained with 19.1% triton x-100, 12.8% n _hexanol, 23.7% cyclohexane and 44.4% water in mass.