Using high strength PTFE mesh as supporting layer, with perfluorosulfonic acid resin with the most suitable molecular weight and ion exchange capacity, it has super chemical resistance and durability, and is widely used in the treatment of high salt waste water, electrodialysis and other water treatment fields.
◮ Thickness and Basis Weight Properties
Membrane Type
|
Thickness(microns) (μm)
|
Weight(g/m2)
|
N-515
|
220
|
290
|
◮ Physical and Other Properties
Physical and Other Properties
|
Index Parameters
|
Test Method
|
Tensile Test (23°C, 50% RH)
|
|
|
Tensile Strength(MPa)
|
>40
|
GB/T 20042.3-2022
|
Elongation at break(%)
|
>100
|
GB/T 20042.3-2022
|
Specific Gravity
|
1.32
|
—
|
Conductivity(S/cm)
|
>0.100
|
GB/T 20042.3-2022
|
Acid Capacity(meq/g)
|
1.00±0.05
|
GB/T 20042.3-2022
|
◮ Hydrolytic Propertie
Hydrolytic Properties
|
Index Parameters
|
Test Method
|
Water Content(%)
|
5.0±3.0
|
GB/T 20042.3-2022
|
Water Uptake(%)
|
50.0 ±5.0
|
GB/T 20042.3-2022
|
(23°C, 50% RH)Thickness Change, % increase
|
23°C soaked(% )from 50% RH
|
≤5
|
GB/T 20042.3-2022
|
100°C soaked(% )from 50% RH
|
≤8
|
GB/T 20042.3-2022
|
Linear expansion, % increase(23°C, 50% RH)
|
23°C soaked(% )from 50% RH
|
≤2
|
GB/T 20042.3-2022
|
100°C soaked(% )from 50% RH
|
≤5
|
GB/T 200423-2022
|