Porous ceramic laminate and separation membrane
By adopting direct lamina chemical resistance treatment in the ceramic membrane, combining Ti and Al metal oxides to optimize the interlayer interface strength of the ceramic membrane, the problem of ceramic membrane interface peeling is solved, and the film's anti-peeling performance and service life is improved.
JP2025037437APending Publication Date: 2025-03-18SUMITOMO CHEM CO LTD
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Patent Information
- Application Number
- JP2023144372
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-06
- Publication Date
- 2025-03-18
AI Technical Summary
Technical Problem
In the prior art, multi-layered ceramic membranes are prone to interface peeling problems during application, which affects their performance and life.
Method used
A ceramic membrane structure is adopted, in which the first and second layers of ceramic membranes are treated with direct lamide resistance, the first layer contains metal oxide X, the second layer contains metal oxide Y of Ti and Al, and the molar ratio of Ti/Al is controlled between 0.005 and 0.10 to ensure the interface strength.
Benefits of technology
By optimizing the interlayer interface strength of the ceramic membrane, the anti-peeling performance of the ceramic membrane is significantly improved, the service life is extended, and the efficient fluid filtration performance is maintained.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a porous ceramic laminate in which two or more layers are laminated, and peeling at the lamination interface is suppressed.SOLUTION: The present invention provides a porous ceramic laminate having a first porous layer and a second porous layer directly laminated on the first porous layer, wherein the first porous layer contains a metal oxide X, the second porous layer contains a metal oxide Y, the metal oxide Y contains Ti and Al, the molar ratio of Ti / Al in the second porous layer is 0.005 or more and less than 0.10, and the cumulative pore area A1 for pore diameters of 0.98-200 μm is 0.01 m2 / g or more and 0.60 m2 / g or less.SELECTED DRAWING: None
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