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Composite lon Exchange Membrane for Water Treatment

Using a high-strength polytetrafluoroethylene (PTFE) mesh as the supporting layer, and incorporating perfluorosulfonic acid (PFSA) resin with optimally tailored molecular weight and ion exchange capacity (IEC), the Thinkre™ Composite Ion Exchange Membrane for Water Treatment exhibits excellent chemical resistance and durability. This membrane is widely applied in water treatment fields, including high-salinity wastewater treatment and electrodialysis (ED) processes.

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Description






Composite Ion Exchange Membrane for Water Treatment


The Composite Ion Exchange Membrane for Water Treatment integrates a high-strength PTFE mesh as the supporting layer, combined with perfluorosulfonic acid resin optimized for molecular weight and ion exchange capacity (IEC). It exhibits outstanding chemical resistance and durability, making it ideal for water treatment applications. Engineered to handle harsh conditions, this membrane effectively serves in high-salinity wastewater treatment, electrodialysis (ED) processes, and other water purification scenarios, ensuring stable performance for efficient contaminant removal and ion management.

Composite Ion Exchange Membrane for Water Treatment


Thickness and Basis Weight Properties
Membrane Type Thickness (μm) Weight (g/m²)
N-515 220 290


Material Performance Parameters
Category Performance Item Technical Index
Physical Properties Tensile Strength ≥40 MPa
Elongation at Break ≥100 %
Specific Gravity 1.32
Other Properties Conductivity ≥0.100 S/cm
Acid Capacity 1.00±0.05 meq/g
Swelling Properties Water Content 5.0±3.0 %
Water Uptake 50.0±5.0 %
Thickness Swell Rate (23℃, 50% RH) – Thickness Change, % increase –
23℃ Soaked (%) – 23℃ soaked(%) from 50%RH ≤5 %
100℃ Swell Rate (100℃ soaked from 50% RH) ≤8 %
Linear Expansion – Linear expansion, % increase (23℃, 50%RH) –
23℃ Soaked % – 23℃ soaked from 50% RH ≤2 %
100℃ Soaked % (100℃ soaked from 50% RH) ≤5 %

Measurement Notes

  • Measurements taken with a membrane conditioned to 23℃, 50% RH
  • Conductivity measurements at 23℃, 100% RH
  • A base titration procedure measures the equivalent amount of sulfonic acid in the polymer of the membrane, and uses the measurement to calculate the acid capacity or equivalent weight of the membrane
  • Water content of the membrane conditioned to 23℃ and 50% RH (dry weight basis)
  • Water content of the membrane in water at 100℃ for 1 hour (dry weight basis)
  • Tensile Test (Conditions: 23℃, 50% RH)

For further information about our products, please feel free to contact us via email at support@atomfair.com. We look forward to engaging with you.



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