Composite proton exchange membrane synthesizing method for fuel cell
A proton exchange membrane and fuel cell technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as high cost and reduced mechanical strength, and achieve the effects of improving battery performance, good compactness, and reducing dosage
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Embodiment 1
[0046] Cutting area is the polytetrafluoroethylene porous film of 15cm * 15cm, porous PTFE film thickness 50 μ m, (weight concentration 37%) nitric acid boils 0.5 hour at 50 ℃, then uses (weight concentration 98%) sulfuric acid to boil 1 hour at 50 ℃ . Wash with deionized water until neutral, and soak in ethanol for later use.
Embodiment 2
[0048] Cutting area is the polytetrafluoroethylene porous membrane of 15cm * 15cm, porous PTFE membrane thickness 50 μ m, (weight concentration 10%) hypochlorous acid boils 0.5 hour at 50 ℃, then uses (weight concentration 75%) sulfuric acid to boil at 50 ℃ 1 hour. Wash with deionized water until neutral, and soak in ethanol for later use.
Embodiment 3
[0050] Cutting area is the polytetrafluoroethylene porous membrane of 15cm * 15cm, porous PTFE membrane thickness 50 μ m, (weight concentration 20%) carbonic acid boils 0.5 hour at 50 ℃, then uses (weight concentration 10%) nitric acid to boil 1 hour at 50 ℃ . Wash with deionized water until neutral, and soak in ethanol for later use.
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