Abstract Pore formers are essential for preparation of high performance ceramic membrane supports. The removal of the pore former is a key process affecting the sintering rate and quality. To avoid excessive concentration of pore former removal at a certain temperature, we choose carbon black, sawdust and hydroxyethyl cellulose (HEC) as a composite pore former to prepare supports with high flux and sinter the supports rapidly. According to thermal analysis results of the three pore formers, we designed the ratio of sawdust/carbon black/HEC as 5/3/2. By tuning the firing temperature, pore former content and heating rate, the supports prepared with this method exhibited a pure water flux of 45.4 m3m−2h−1bar−1 and a bending strength of 46.2 MPa. The properties are highly dependent on the pore former content and slightly on the heating rate, which means that the composite pore former method can greatly reduce the time consumption without damage to the support quality. The corrosion experimental results also indicate the supports are quite resistant to strong acid and alkali corrosion. In summary, the composite pore former method is a promising way to fabricate supports with excellent performances and realize the fast firing of high porosity ceramic membrane supports.

中文翻译：

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复合成孔剂法制备高通量氧化铝膜载体及其表征

摘要 成孔剂是制备高性能陶瓷膜载体必不可少的。造孔剂的去除是影响烧结速度和质量的关键过程。为了避免在一定温度下成孔剂去除浓度过高，我们选择炭黑、锯末和羟乙基纤维素（HEC）作为复合成孔剂，制备高通量载体并快速烧结载体。根据三种造孔剂的热分析结果，我们设计木屑/炭黑/HEC的比例为5/3/2。通过调节烧成温度、成孔剂含量和加热速率，用该方法制备的载体的纯水通量为 45.4 m3m-2h-1bar-1，弯曲强度为 46.2 MPa。性能高度依赖于成孔剂的含量和加热速率，这意味着复合造孔剂方法可以在不损害支撑质量的情况下大大减少时间消耗。腐蚀实验结果还表明，该支架具有较强的耐强酸碱腐蚀能力。综上所述，复合成孔剂方法是制备性能优异的载体和实现高孔隙率陶瓷膜载体快速烧制的一种很有前景的方法。