| abstract |
The invention discloses a kind of perforated membranes of PTFE and preparation method thereof comprising being blended with PFSA, wherein the CWST of the film is at least about 27 dynes/cm (about 27 × 10 ‑5 N/cm).The method of the metalliferous fluid of bag filter is disclosed, the method includes making to wrap metalliferous fluid to remove metal by the perforated membrane and from the fluid.The method for filtering SPM fluid is disclosed, the method includes so that the SPM fluid is removed particle by the perforated membrane and by the fluid. |