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NEPEM N-212 Proton Exchange Membrane

By incorporating an expanded polytetrafluoroethylene (ePTFE) microporous reinforcing material into the traditional proton exchange membrane, the Thinkre PEM exhibits the characteristics of high strength, high conductivity, and low ion permeability.

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Description

Thickness and Basis Weight Properties
Thickness (ฮผm) 50
Weight (g/mยฒ) 99.0
Physical Properties
Tensile Strength (MPa) MD/TD โ‰ฅ28/โ‰ฅ28
Tensile Modulus (MPa) MD/TD โ‰ฅ400/โ‰ฅ400
Elongation at break (%) MD/TD โ‰ฅ100/โ‰ฅ120
Conductivity (S/cm) โ‰ฅ0.100
Hydrolytic Properties
Water Content (%) 5.0ยฑ3.0
Water Uptake (%) 50.0ยฑ5.0
Thickness Swelling Rate (23โ„ƒ,50%RH) % increase โ‰ค10
Thickness Swelling Rate (100โ„ƒ,50%RH) % increase โ‰ค30
Linear expansion (23โ„ƒ,50%RH) % increase MD/TD โ‰ค4
Linear expansion (100โ„ƒ,50%RH) % increase MD/TD โ‰ค20

The N-212 represents a thicker variant of the N-200 series membranes, providing enhanced mechanical durability while maintaining proton conductivity. Its hydrolytic stability suits demanding fuel cell operating conditions.

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