Sulfonated Polyimide Membrane (SPI-40)

Cat No:FCEM-0070

Description

A 40μm hydrocarbon membrane with rigid imide backbones, offering high mechanical strength and thermal stability for stationary fuel cells.

Datasheet

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Basic Information

Polymer/Material Base	Sulfonated Polyimide
Ion Exchange Capacity (IEC)	1.5 - 2.0 meq/g
Ionic Conductivity (S/cm)	0.05 - 0.09 (at 80°C)
Thickness (μm)	40 - 45
Tensile Strength (MPa)	70 - 110
Elongation at Break (%)	15 - 40
Water Uptake (%)	30 - 50
Swelling Ratio (%)	< 15
Max Operating Temp (°C)	150
Chemical Stability (Fenton’s Test)	Moderate
Density (g/cm³)	1.45
Ash Content (%)	< 0.08
Volatile Content (%)	< 1.0
EW (Equivalent Weight)	500 - 700
Glass Transition Temp (Tg)	250
Storage Humidity (%)	40 - 60
Storage Temp (°C)	15 - 30
Solubility in Polar Solvents	Soluble in NMP
Ionic Resistance (Ω·cm²)	0.13
Dimensional Stability (%)	< 12
Thermal Stability (TGA)	> 350°C
Flammability Rating	V-0
Surface Roughness (Ra)	< 0.4 μm

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