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Preparation method of titanium oxide ceramic membrane support body
The invention relates to a method for preparing a novel porous ceramic membrane support body. The method comprises the following steps: by taking kaolin, submicron anatase type titanium oxide powder and micron anatase type titanium oxide powder as raw materials, granulating the submicron powder by using polyvinyl alcohol (PVA), and then blending with the micron powder for uniform dispersion; and finally, adding an organic binder and a lubricant into the blended powder, stirring, aging, extruding, sintering and the like to prepare the titanium oxide porous ceramic membrane support body. The support body obtained by the invention has the characteristics of bending strength of 20-36 MPa, porosity of 35%-40%, average pore diameter of 1.5-2.5 [mu]m, and pure water flux of 15-22 m<3>.m<-2>.h<-1>.bar<-1>, and has acid and alkali resistance, high mechanical strength and smooth surface.
本发明涉及一种制备新型多孔陶瓷膜支撑体的方法：以高岭土、亚微米级锐钛矿型氧化钛粉体和微米级锐钛矿型氧化钛粉体为原料，使用聚乙烯醇(PVA)对亚微米粉体进行造粒处理然后与微米级粉体共混使其均匀分散，最后将共混粉加入有机粘结剂和润滑剂经搅拌、陈化、挤出、烧结等工艺制备出氧化钛多孔陶瓷膜支撑体，本发明得到的支撑体抗弯曲强度为20~36MPa，孔隙率为35%~40%，平均孔径为1.5μm~2.5μm，纯水通量为15~22m3•m‑2•h‑1•bar‑1，具有耐酸碱、机械强度高和表面光滑等特点。
Preparation method of titanium oxide ceramic membrane support body
The invention relates to a method for preparing a novel porous ceramic membrane support body. The method comprises the following steps: by taking kaolin, submicron anatase type titanium oxide powder and micron anatase type titanium oxide powder as raw materials, granulating the submicron powder by using polyvinyl alcohol (PVA), and then blending with the micron powder for uniform dispersion; and finally, adding an organic binder and a lubricant into the blended powder, stirring, aging, extruding, sintering and the like to prepare the titanium oxide porous ceramic membrane support body. The support body obtained by the invention has the characteristics of bending strength of 20-36 MPa, porosity of 35%-40%, average pore diameter of 1.5-2.5 [mu]m, and pure water flux of 15-22 m<3>.m<-2>.h<-1>.bar<-1>, and has acid and alkali resistance, high mechanical strength and smooth surface.
本发明涉及一种制备新型多孔陶瓷膜支撑体的方法：以高岭土、亚微米级锐钛矿型氧化钛粉体和微米级锐钛矿型氧化钛粉体为原料，使用聚乙烯醇(PVA)对亚微米粉体进行造粒处理然后与微米级粉体共混使其均匀分散，最后将共混粉加入有机粘结剂和润滑剂经搅拌、陈化、挤出、烧结等工艺制备出氧化钛多孔陶瓷膜支撑体，本发明得到的支撑体抗弯曲强度为20~36MPa，孔隙率为35%~40%，平均孔径为1.5μm~2.5μm，纯水通量为15~22m3•m‑2•h‑1•bar‑1，具有耐酸碱、机械强度高和表面光滑等特点。
Preparation method of titanium oxide ceramic membrane support body
一种氧化钛陶瓷膜支撑体的制备方法
FAN YIQUN (author) / LI XUYANG (author) / DUAN LIJUN (author) / KE WEI (author)
2020-11-17
Patent
Electronic Resource
Chinese
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