有机添加剂对管式α-A1_2O_3微滤膜支撑体性能的影响  

EFFECT OF ORGANIC ADDITIVES ON THE FORMATION OF TUBULAR ALUMINA MICRO-FILTRATION MEMBRANE SUPPORT

作　　者：汪永清[1] 施群[1] 王德林[1] 汪锦明[1] 胡卫[1] 

机构地区：[1]景德镇陶瓷学院,景德镇333001

出　　处：《陶瓷学报》2009年第1期44-48,共5页Journal of Ceramics

基　　金：江西省自然科学基金资助项目(编号:2007GZC0799)

摘　　要：采用正交实验设计探讨了影响管式α-A12O3微滤膜支撑体成型的增塑剂,粘结剂和润滑剂及其含量等主导因素,并对采用优化因素所制备支撑体进行孔隙率,抗弯强度及微观结构表征。结果表明:粘结剂是影响支撑体性质的主导因素;当添加6wt%甘油,6wt%羟丙基甲基纤维素(HPMC)和3wt%无水乙醇,挤出成型,1400℃烧结所得支撑体的孔隙率为50.1%,抗弯强度为52.4MPa。该支撑体适于用作陶瓷微滤膜载体。The effects of organic additives, such as plasticizing agents, plastering agents and lubricants, on the formation of tubular α-Al2O3 micro-filtration membrane support were studied through orthogonal experimental design method. The porosity, bending strength and microstructure of the support were characterized. The results show that the plasticizing agent has an important effect on the extrusion formation of the tubular support. The support calcined at 1400℃ has the porosity of 50.1% and the bending strength of 52.4MPa when 6wt% glycerin, 6wt% hydroxypropyl methyl cellulose （HPMC） and 3wt% ethnol are added. This support meets the requirement of microfiltration membrane support.

关 键 词：管式微滤膜 正交实验 有机添加剂 

分 类 号：TQ174.75[化学工程—陶瓷工业]