造孔剂对粉煤灰基多孔陶瓷膜支撑体的性能影响

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英文篇名：Effect of Pore-forming Agent on Properties of Fly Ash-based Porous Ceramic Membrane Support 作者：刘丰利 ; 杨玉龙 ; 常启兵 ; 胡志文 ; 汪永清 英文作者：LIU Fengli;YANG Yulong;CHANG Qibing;HU Zhiwen;WANG Yongqing;School of Materials Science and Technology, Jingdezhen Ceramic Institute;Key Laboratory of Inorganic Membranes of Colleges and Universities of Jiangxi Province; 关键词：粉煤灰 ; 陶瓷膜支撑体 ; 造孔剂 ; 孔隙率 ; 抗折强度 英文关键词：fly ash;;ceramic membrane support;;pore-forming agent;;porosity;;flexural strength 中文刊名：ZTCG 英文刊名：China Ceramic Industry 机构：景德镇陶瓷大学 材料科学与工程学院;江西省高校无机膜重点实验室; 出版日期：2019-04-16 16:25 出版单位：中国陶瓷工业 年：2019 期：v.26 语种：中文; 页：ZTCG201902006 页数：5 CN：02 ISSN：36-1197/TS 分类号：26-30

摘要

以粉煤灰为主要原料,竹炭为造孔剂,采用干压成型法制备多孔陶瓷膜支撑体。详细研究了造孔剂添加量及烧成制度对多孔陶瓷膜支撑体的性能影响。采用场发射扫描电子显微镜、压汞仪、万能材料试验机和水通量测试装置等对多孔陶瓷膜支撑性能进行表征。当造孔剂添加量为12wt.%,烧成温度为1250℃,保温时间为20 min时,可以制备出抗折强度为25.03 MPa,平均孔径为1.25μm,水通量为3104.71 L/h.m~2.bar的多孔陶瓷膜支撑体。
        The porous ceramic membrane support was prepared by dry pressing method with fly ash as the raw material, bamboo charcoal as the pore-forming agent. The effects of the amount of the added pore-forming agent and the sintering system on the properties of the porous ceramic membrane support were investigated. The properties of the porous ceramic membrane support were analyzed by field emission scanning electron microscope, mercury intrusion meter, universal material testing machine and water flux testing device. When the adding amount of the pore-forming agent was 12 wt.%, the sintering temperature was 1250 °C and the holding time was 20 min, the prepared porous ceramic membrane support had the flexure strength of 25.03 MPa, the average pore-size of 1.25 μm and the water flux of 3104.71 L/h.m~2.bar.

引文

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