2006•Journal of Nanjing University of TechnologyRequires access
Preparation of macroporous ZrO_2 membrane with PMMA as the template
XU Nanping
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Abstract
The improvement of porosity was very important in the preparation of the ceramic membranes.The ordered macroporous materials had large porosity.Unsupported macroporous ZrO_2 membranes were successfully synthesized by vacuum filtration or gravitational deposition as assembly methods using monodispersed PMMA as template.Supported macroporous ZrO_2 membranes were also synthesized using dip-coating process.Zeta potential of PMMA and ZrO_2 in aqueous suspensions had effect on the stabilization of the mixed suspensions.The porosity of the unsupported macroporous ZrO_2 membranes was 62%.SEM images revealed that the ZrO_2 membranes had uniform macropore structure.