Abstract In this study, porous zirconia membranes were developed by aqueous tape casting. The influence of poly (methyl methacrylate) (PMMA) as a pore former, and sintering temperatures (1300, 1400, and 1500 °C) on open porosity and pore size was investigated. The rheological behaviour of the suspensions was measured. The slurries showed pseudoplastic behavior, which is desirable for tape casting. Functionalization with an amino silane precursor (3-aminopropyl triethoxysilane, APTES) was carried out to increase the hydrophilic properties of the membranes. The functionalized samples were characterized by SEM-EDX to identify the moieties attached to the surface. Membranes with open porosity ranging from 27% to 51% and average pore sizes from 0.2 to 1.4 μm were obtained. Samples sintered at 1400 °C with added pore former yielded the highest water flux, 257 Lm−2h−1, which increased to 642 Lm−2h−1 after functionalization. Membranes with tailored porosity and pore size obtained in this study are indicated for applications involving separation processes, especially for microfiltration systems.

中文翻译：

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水性流延法制备的功能化氧化锆膜的表征

摘要 在这项研究中，多孔氧化锆膜是通过水性流延法开发的。研究了聚（甲基丙烯酸甲酯）（PMMA）作为成孔剂和烧结温度（1300、1400 和 1500 °C）对开孔率和孔径的影响。测量悬浮液的流变行为。浆料显示假塑性行为，这是流延成型所希望的。用氨基硅烷前体（3-氨基丙基三乙氧基硅烷，APTES）进行官能化以增加膜的亲水性。功能化样品通过 SEM-EDX 表征以识别附着在表面上的部分。获得了开孔率为 27% 至 51% 且平均孔径为 0.2 至 1.4 μm 的膜。在 1400 °C 下烧结并添加造孔剂的样品产生最高的水通量，257 Lm-2h-1，在功能化后增加到 642 Lm-2h-1。本研究中获得的具有定制孔隙率和孔径的膜适用于涉及分离过程的应用，尤其是微滤系统。