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.
出处
《中国陶瓷工业》
CAS
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)
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
Wuhan East-lake sediment, porous ceramic filtration materials, content of sediment, pore-forming materials, microstructure and performances
