Low-EW Ionomer Film (LEW-15)

Cat No:FCEM-0074

Description

An ultra-thin 15μm PFSA membrane with very low equivalent weight (700-800) for maximum proton flux in high-performance aerospace fuel cells.

Datasheet

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Basic Information

Polymer/Material Base	Low-EW PFSA
Ion Exchange Capacity (IEC)	1.35 - 1.50 meq/g
Ionic Conductivity (S/cm)	0.18 - 0.25 (at 80°C)
Thickness (μm)	15 - 18
Tensile Strength (MPa)	25 - 40
Elongation at Break (%)	100 - 160
Water Uptake (%)	45 - 65
Swelling Ratio (%)	< 15
Max Operating Temp (°C)	95
Chemical Stability (Fenton’s Test)	High (Acidic)
Density (g/cm³)	2.12
Ash Content (%)	< 0.02
Volatile Content (%)	< 0.5
EW (Equivalent Weight)	700 - 800
Glass Transition Temp (Tg)	150
Storage Humidity (%)	50 - 70
Storage Temp (°C)	20 - 25
Solubility in Polar Solvents	Insoluble
Ionic Resistance (Ω·cm²)	0.015
Dimensional Stability (%)	< 10
Thermal Stability (TGA)	> 280°C
Flammability Rating	UL94 V-0
Surface Roughness (Ra)	< 0.2 μm

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