Proton Exchange Membrane for Electrolyzer
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Thickness and Basis Weight Properties
Membrane Type Thickness(microns)(μm) Weight(g/m²) R-115 125 246 R-117 175 345 R-1110 220 432 R-115W, R-116W, R-117W 125, 150, 175 246, 295, 345 Physical and Other Properties
Physical and Other Properties Typical Value Test Method Tensile Test(23℃,50% RH) Tensile Strength(MPa) ≥28 ≥28 ASTM D882 Tensile Modulu(MPa) ≥400 ≥200 ASTM D882 Elongation at break(%) ≥120 ≥200 ASTM D882 Specific Gravity 1.97 1.98 OtherProperties Typical Value Test Method Conductivity²(S/cm) ≥0.100 ≥0.100 GB/T 20042.3-2022 Acid Capacity³(meq/g) 1.00±0.05 1.00±0.05 GB/T 20042.3-2022 Dissolved Hydrogen Concentration
(ppb Max)1000 -The performance
of hydrogen production
can be comparable to that
of international brand R11-series.Hydrolytic Propertie
Hydrogen Properties Typical Value Test Method Water Content⁵(%) 5.0±3.0 5.0±3.0 ASTM D570 Water Uptake(%) 50.0±5.0 50.0±5.0 ASTM D570 Thickness Swelling Rate at 23℃,50% RH(% increase) water soaked at 23℃ 50% RH ≤5 ≤18 ASTM D756 water soaked at 100℃ 50% RH ≤15 ≤30 ASTM D756 Linear Expansion at 23℃,50% RH (% increase) water soaked at 23℃ 50% RH ≤5 ≤16 ASTM D756 water soaked at 100℃ 50% RH ≤18 ≤20 ASTM D756 ◮ Measurements taken with membrane conditioned to 23 ℃,50%RH for 24h.
◮ Conductivity measurement at 23 ℃,100%RH.
◮ A base titration procedure measures the equivalents of sulfonic acid group in the polymer resin,thus calculating the acid capacity or equivalent weight of the membrane.
◮ Water content of membrane conditioned to 23 ℃ and 50%RH(dry weight basis).
◮ Water uptake from dry membrane to conditioned in water at 100℃ for l hour (dry weight basis).
