Professional Perfluorosulfonic Acid and Carboxylic Acid Composite Ion Exchange Membrane manufacturer in China


For production of chlorine and caustic(Sodium hydroxide NaOH, potassium hydroxide KOH, sodium hypochlorite,and so on) by electrolysis, we develop Perfluorosulfonic acid proton exchange membrane SY14P series which are widely used in chlor-alkali industries, electro-dialysis, recovery of copper from etching solutions, synthesis for gold potassium cyanide , chlorine dioxide, and electrochemical reaction for amino acid. The membrane performs as a conducting separator and solid electrolyte in a variety of electrochemical cells which require the membrane to selectively transport cations across the cell junction. SY14P series Ion-exchange membranes are reinforced membranes based on chemically stable perfluorosulfonic acid (PFSA) copolymer. Incorporation of the PTFE mesh reinforcement improves the mechanical property of the composite membrane and allows the membrane to restrict its swelling. The membranes show significant improvements in features such as better resistance to chemical attack and longer operating durability under electrolysing cell conditions.

Properties of the ion exchange membranes for chlor-alkali industry

Physical and Other Properties
Physical Properties
Measured at 50% RH, 23 °C

Values

Test Method

Tensile Strength, max., MPa

50

ASTM D882

Elongation at break, %

120

ASTM D882

Specific Gravity

1.3

体积称重法

 

 

 

Other Properties

Values

Test Method

Conductivity, S/cm

0.083

GB/T 20042.3-2009

Acid capacity, meq/g

1.0

GB/T 20042.3-2009

 

 

 

Hydrolytic Properties

Values

Test Method

Water Content, %

5.0±3.0

ASTMD570

Water Uptake, %

50.0±5.0

ASTMD570

Thickness Change,
from 50% RH, 23 °C to water soaked, 23 °C
from 50% RH, 23 °C to water soaked, 100 °C

 
5.0%
10.0%

 

ASTM D 756
ASTM D 756

Linear Expansion,
from 50% RH, 23 °C to water soaked, 23 °C
from 50% RH, 23 °C to water soaked, 100 °C

 
2.0%
5.0%

 

ASTM D 756
ASTM D 756

1, Measurements taken with membrane conditioned to 23°C,50% RH.
2, Conductivity measurements at 23°C,100% RH.
3, A base titration procedure measures the equivalents of sulfonic acid in the polymer, and uses the measurement to calculate the acid capacity or equivalent weight of the membrane.
4, Water content of membrane conditioned to 23°C and 50% RH (dry weight basis).
5, Water uptake from dry membrane to conditioned in water at 100°C for 1hour (dry weight basis ).

Applications:

chlor-alkali membrane is produced with PTFE material, suitable for production of caustic soda NaOH, potassium hydroxide KOH, sodium hypochlorite and other caustic.
chlor-alkali membrane is used for electrolytic chlorine dioxide generator, etching solution recovery copper, gold salt preparation, amino acid refining, electrodialysis and other electrolytic industries.
chlor-alkali membrane has higher tolerance to salt water impurities

Thickness and Weight:

Thicknessμm

Weightg/m2

260

340

360

470

Order and Packaging Information:

The membrane for cut pieces will depend on the size and quantity of the customer’s order requirements. The membrane pieces or rolls can be cut to non-standard sizes, please contact our sales staff for details and availability.




Our Mission

Continuously provide the Ion-Exchange Membrane with lower energy consumption and excellent performance for Green Energy and Chlor-Alkali Industries
Continuously improve the technology of environmentally friendly

Contact Us

 Dongfeng Street, Weifang Shandong China

 (0086) 536-821-6345