一种非对称砜类聚合物中空超滤膜及其制备方法和应用
By designing the pore structure of asymmetric sulfone polymer hollow ultrafiltration membranes, the problem of balancing retention efficiency and flux in existing technologies has been solved, achieving a balance between high retention and high flux, and enhancing membrane stability and the yield of target substances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU COBETTER FILTRATION EQUIPMENT CO LTD
- Filing Date
- 2024-12-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing sulfone polymer clarification ultrafiltration membranes suffer from a sharp decline in flux during the process of improving retention efficiency, making it difficult to simultaneously meet the requirements of high efficiency retention and high flux.
An asymmetric sulfone polymer hollow ultrafiltration membrane is designed. By adjusting the pore structure of the membrane body, it is made to have a suitable pore size range on the first surface, a gradually changing pore size and a non-directional tortuous path in the auxiliary retention zone, a reasonable distance from the auxiliary retention zone to the first surface, and a moderate overall membrane porosity, thus realizing the structure of a gradually changing pore size membrane.
It improves the membrane's retention efficiency and flux, reduces damage to the target substance, enhances the membrane's stability and pressure resistance, and increases the yield of the target substance.
Smart Images
Figure CN119733388B_ABST