Process for preparing full-fluorine sulfornic ions exchange membrane electrode

Process for preparing full-fluorine sulfornic ions exchange membrane electrode

  • CN 1,306,206 A
  • Filed: 09/13/2000
  • Published: 08/01/2001
  • Est. Priority Date: 09/13/2000
  • Status: Abandoned Application
First Claim
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1. the preparation method of a full-fluorine sulfornic ions exchange membrane electrode is characterized in that with colloid Pt, the Au catalyzer is sprayed onto on the voided polytetrafluoroethylene film by spray gun, and the carrying capacity of catalyzer is 4~

  • 6mg/cm 2After the infrared oven dry, use acetone drip washing, remove the surfactant in the emulsion, at 180 ℃



    240 ℃

    following sintering,, be made into the solution that concentration is 5%~

    20% (volume ratio) again with absolute ethyl alcohol dilution perfluorinated sulfonic acid ion exchange membrane emulsion, this solution is coated in catalyst surface, and consumption is 0.2~

    0.4ml/cm 2, then perfluorinated sulfonic acid ion exchange membrane is pressed in catalyst surface, placed 3~

    10 minutes at 130 ℃

    , again under this temperature with 10~

    30 kilograms/cm 2Pressure compacting 2~

    10 minutes, at last poly tetrafluoroethylene is come off.

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