东湖淤泥制备多孔陶瓷滤料的研究  

MICROSTRUCTURE AND PERFORMANCES OF POROUS CERAMIC FILTRATION MATERIALS FROM WUHAN EASTLAKE SEDIMENT

作　　者：吴建锋[1] 徐晓虹[1] 张明雷[1] 吴菊芳[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《中国陶瓷工业》2008年第5期11-16,共6页China Ceramic Industry

基　　金：973计划前期预研项目(2006CB708608)

摘　　要：以武汉东湖淤泥为主要原料制备多孔陶瓷滤料,并在淤泥系列最佳配方中添加成孔剂白云石与石墨进行气孔率调控,通过SEM、XRD等测试手段测试了样品的相关理化性能。结果表明,淤泥用于制备多孔陶瓷滤料可行;成孔剂石墨与白云石的加入都能起到气孔率调控的作用,以石墨为成孔剂的系列具有更优的性能。典型配方YC2石墨添加量达20wt%(外加),于1080℃下烧成样品的显气孔率为36.97%,吸水率为20.34%,体积密度为1.82kg/m^3,压碎强度为13.50Mpa,耐酸性为96.76%及耐碱性为97.38%。The East-lake sediment was used to prepare porous ceramic filtration materials while the pore-forming materials dolomite and graphite were added into the optimal sample to control its porosity. The corresponding performances of as-received samples were measured by SEM and XRD. The results showed that addition of the pore-forming materials dolomite and graphite could both contribute to control the porosity while the series with graphite added was superior to the other. The porosity （Pa） is 36.97%, water absorption （Wa） is 20.34%, bulk density （D） is 1.82kg/m^3, crushing strength is 13.50MPa, acid resistance is 96.76%, alkali resistance is 97.38%, when the optimal sample YC2 was fired at 1080℃ with 20 wt% content of graphite added.

关 键 词：武汉东湖淤泥 多孔陶瓷滤球 淤泥添加量 成孔剂 结构与性能 

分 类 号：TQ174.61[化学工程—陶瓷工业]