With ePTFE (expanded polytetrafluoroethylene) microporous reinforcing material added to the traditional proton exchange membrane, the characteristics of high strength, high conductivity and low ion permeability are achieved.
◮ Thickness and Basis Weight Properties
Membrane Type
|
Thickness(microns)(μm)
|
Weight(g/㎡)
|
N-3010
|
12
|
23.6
|
N-3015
|
15
|
29.5
|
N-211
|
25
|
50.0
|
N-212
|
51
|
102
|
◮ Physical and Other Properties
Physical and Other Properties
|
Index Parameters
|
Test Method
|
|
N-3010
|
N-3015
|
N-211/212
|
|
Tensile Test (23°C,50%RH)
|
MD
|
TD
|
MD
|
TD
|
|
|
Tensile Strength(MPa)
|
≥32
|
≥32
|
≥30
|
|
≥28/28
|
GB/T 20042.3-2022
|
Tensile Modulu(MPa)
|
≥400
|
≥400
|
≥350
|
≥350
|
≥400/400
|
GB/T 20042.3-2022
|
Elongation at break(%)
|
≥150
|
≥150
|
≥18O
|
≥180
|
>100/120
|
GB/T 20042.3-2022
|
Specific Gravity
|
1.97
|
1.97
|
1.97
|
—
|
Other Properties
|
Index Parameters
|
Test Method
|
Conductivity(S/cm)
|
≥0.100
|
≥0.110
|
≥0.100
|
GB/T 20042.3-2022
|
Hydrogen Crossover
[cm3·cm/(cm2·s·0.1MPa)]
|
<5.0×10 -8
|
<4.50x10 -8
|
/
|
GB/T 2004232022
|
Hydrogen Crossover current (mA/cm2)
|
<2.0
|
<2.0
|
/
|
Thinkre™ Method
|
◮ Hydrolytic Propertie
Hydrolytic Properties
|
Index Parameters
|
Test Method
|
Water Content(%)
|
10.0±3.0
|
10.0±3.0
|
5.0±3.0
|
GB/T 20042.3-2022
|
Water Uptake^%)
|
50.0±5.0
|
50.0±5.0
|
50.0±5.0
|
GB/T 200423-2022
|
(23°C, 50% RH)Thickness Change,% increase
|
23℃ soaked from 50% RH
|
≤10
|
W≤15
|
≤10
|
GB/T 2004232022
|
100 ℃ soked from 50% RH
|
≤30
|
≤40
|
≤30
|
GB/T 20042.3 2022
|
Linear expansion, % increase(23℃, 50% RH)
|
|
MD
|
TD
|
MD
|
TD
|
I
|
|
23℃ soaked from 50% RH
|
≤3
|
≤4
|
≤4
|
≤5
|
≤4
|
GB/T 2004.3-2022
|
100℃ soaked from 50% RH
|
≤5
|
≤5
|
≤7
|
≤7
|
≤20
|
GB/T 20042.3-2022
|