Fluorinated filtration membranes, filters, and methods
By combining thermally stable ionic groups with porous fluoropolymer membranes, the problem of ionic group degradation in fluoropolymer filter membranes at high temperatures is solved, achieving effective sealing and filtration efficiency of filter components at high temperatures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ENTEGRIS INC
- Filing Date
- 2019-03-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fluoropolymer filter membranes have difficulty maintaining the thermal stability of ionic groups during high-temperature potting, leading to the degradation of ionic functional groups and making it impossible to effectively remove dissolved metal materials or particles.
By combining thermally stable ionic groups with a porous fluoropolymer membrane, and sealing the filter membrane and end parts through a high-temperature potting process, the ionic groups are ensured not to degrade at high temperatures, thus maintaining the filtration function.
The stability of ionic groups was achieved during the process of converting the filter membrane into a filter assembly at high temperatures, ensuring that the filter can effectively remove dissolved metals and particles and improve filtration efficiency.
Smart Images
Figure CN122399595A_ABST