塑性聚合物方法制备的钛酸铋钠钾纤维及其流变学性能  

PREPERATION OF SODIUM POTASSIUM BISMUTH TITANATE FIBER BY THE VISCOUS POLYMER PROCESSING AND RHEOLOGIC BEHAVIOR

作　　者：杨雄[1] 周静[1] 彭蔚蔚[1] 陈文[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,材料复合新技术国家重点实验室,武汉430070

出　　处：《硅酸盐学报》2008年第A01期16-19,24,共5页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50402014)资助项目。

摘　　要：用塑性聚合物方法制备了可塑性好的钛酸铋钠钾(0.2K_(0.5)Bi_(0.5)TiO_3-0.8Na_(0.5)Bi_(0.5)TiO_3,KNBT)泥料。研究球磨时间、黏结剂、分散剂以及pH值对泥料流变性能的影响。获得流变性能最佳的泥料配方及制备工艺。通过挤制成型法成功制备了品质优良的KNBT纤维。结果表明:球磨时间为16h,黏结剂质量分数(下同)为1.22%,分散剂为0.4%,pH值为7时,泥料获得最佳流变性能。Sodium potassium bismuth titanate （KNBT） slurry with high plasticity was prepared by the viscous polymer processing The effects of milling time, bonding agent content, dispersant content, and pH value on the rheological properties were inves- tigated by rheograms, and the optimal technological parameters were investigated. The KNBT fibers with improved properties were fabricated via an extruding machine. The results show that the slurry has optimal rheological behavior when the milling time is 16 h, the pH value is 7, the bonding agent content is 1.22% （in mass, the same below）, and the dispersant content is 0.4%.

关 键 词：钛酸铋钠钾 塑性聚合物方法 纤维 流变学性能 

分 类 号：TQ174[化学工程—陶瓷工业]