LSC-PFSA Cation Exchange Membrane

Catalog NumberACMA00062952

CategoryCation Exchange Membranes

Description	This membrane is a Long Side Chain - Per-Fluorinated Sulfonic Acid (LSC-PFSA) cation exchange membrane (CEM) with low resistance, high mechanical stability, high selectivity and high chemical / oxidative stability.
Application	This is a thin alongside-chain non-reinforced membrane that is designed for use in stationary hydrogen PEM fuel cell applications.
Backing Foil	PET Foil
Bubble Point	> 3 bar (Test in Water)
Color Form	Transparent
Delivery Form	Dry
Dimensional Swelling	12 - 14 % ( 2 M H2SO4 at T = 25 °C)
Elongation At Break	125 - 160 %
Ionic Form	H-form
Non-Std Modulus	500 - 550 MPa
Notice For Use	The membrane is delivered in H-form and dry form (non-activated). For optimum performance and lowest resistance it is necessary to pretreat the membrane according to the following prescription: Put the membrane sample in an aqueous 10 wt% HNO3 solution or in 5 vol % H2SO4 solution at minimum 80°C for at least 12 hours. After rinsing with demineralized water (pH ~ 7) the membrane is ready for use (activated). Membranes will expand and contract based on moisture content.
Reinforcement	None
Selectivity	93 - 94 % (0.1 / 0.5 mol/kg KCl at T = 25 °C)
Size	19cm x 30cm or 10 cm x 10cm
Tensile Strength	30 - 35 MPa
Thickness	50 micrometers (1.97 mil)
Type	Cation