High Quality Perfluorosulfonic acid ion exchange membrane and perfluorosulfonic acid ion exchange resin manufacturer in China

We produce the perfluorosulfonic acid ion exchange membrane and perfluorosulfonic acid ion exchange resin for global customers.

About

Perfluorosulfonic Acid Cation Exchange Membrane N-31

Cation exchange membranes are selective membranes of cations, usually sulfonic acid type, with immobilised groups and cleavable ions. For example, the sodium-type sulfonic acid-type immobilisation group is sulfonate, and the dissociation ion is sodium ion. . The cation exchange membrane can be regarded as a kind of polymer electrolyte. Since the positive membrane is negatively charged, although the original dissociated positive ion is dissociated into the water by the action of water molecules, it is energized by the electric field outside the membrane and is positively charged. The cations can pass through the positive film, while the anions cannot pass because of homosexual rejection, so they have selective permeability.
The perfluorinated cation exchange membranes are produced with the new casting method, the casting process can be combined with doping technology,we add new fluororesin mixing formula with good vanadium resistance in the casting process, the Ion-Exchange Membrane has high tensile strength, isotropic, high electrical conductivity, good chemical properties, and so on.

Perfluorosulfonic acid ion exchange membrane manufacturer

Characteristics for

Perfluorosulfonic Acid Ion Exchange Membrane N-31

Chemical Name:Perfluorinated ion exchange membrane N-31

Synonyms:Perfluorinated proton exchange membrane,perfluorinated ionomer membrane,proton exchange membrane,ion exchange membrane,Perfluorosulfonic acid membrane

CAS NO.:31175-20-9

Appearance: White membrane

Formula:(C7HF13O5S . C2F4)x

Application:hydrogen fuel cell,vanadium flow batteries, chlor-alkali industry for the production of NaOH and KOH, water treatment device

REF. FOB Price:USD100-500/Piece

Min. Order:1 piece

Payment Terms:L/C,T/T,Western Union,Paypal

Lead Time:10-15 days

Month Capacity:30000 square meters

Technical Index:

Physical and Other Properties Physical Properties Measured at 50% RH, 23 C	Values	Test Method

Tensile Strength MD, max., MPa	36	ASTM D882
Tensile Module, MPa	410	ASTM D882
Elongation at break, %	190	ASTM D882
Specific Gravity	1.98

Other Properties	Values	Test Method
Conductivity, S/cm	0.10	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	10.0% 18.0%	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	10.0% 15.0%	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 ).

Thickness of the PFSA membranes

Type		Thickness(um)
N-31	N-310	10
	N-312	12
	N-315	15

Application:

The PFSA membranes N-31 are non-reinforced films based on PFSA polymer, a perfluorosulfonic acid in the acid (H+) form. Our PFSA membranes perform as a solid polymer electrolyte in fuel cells and other applications in electrochemistry and separation technology for a variety of electrochemical process.
The membranes are located between the cathode and anode and transports protons formed near the catalyst at the hydrogen electrode to the oxygen electrode thereby allowing the current to be drawn from the cell. The membranes show significant improvements in features such as better resistance to chemical attack and longer operating durability.