为实现硼硅酸盐玻璃陶瓷基低温共烧陶瓷生带材料的低成本、安全无毒化生产,采用以水性乳胶作为粘结剂的水基流延工艺进行制备;采用数字旋转黏度计分别对分散剂、固相、粘结剂含量对浆料黏度的影响进行了研究,利用扫描电镜对烧结前后生带材料的微观形貌进行了分析.结果表明:利用硼硅酸盐玻璃+Al2O3粉体作为固相,苯丙乳液作为粘结剂,苯丙烯酸铵作为分散剂,甘油作为增塑剂,成功制备出了固含量高、稳定性好、干燥快的水基流延浆料;制备的生带材料表面光滑、强度高,容易在室温下叠层,经过850 ℃×30 min烧结,其致密度可以达到96.45%.

A new technology of aqueous tape casting process has been developed to produce borosilicate glass-ceramic based low temperature co-fired ceramics (LTCC) green tapes for its low cost,safety and no toxicity advantage with water-based latex as binder. Effect of volume fraction of solid phase powders,dispersant and binder on the viscosity of LTCC slurry was investigated by viscometer and surface images of the prepared LTCC tapes before and after sintering were observed by SEM. The results show that with borosilicate glass and alumina powders as solid phase,styrene-acrylate latex as binder,cinnamate ammonium as dispersant and glycerol as plasticizer,water-based LTCC slurry was prepared with high solid fraction,good stability and rapid drying. The green tapes produced by this process had smooth surface and high intensity,and could be laminated at room temperature. After sintered at 850 ℃ for 30 min,the relative bulk density of the tape was as high as 96.45%.