Aquivion® N+ 125D/251.612 dispersion is based on perfluorosulfonic acid (PFSA) polymer chemistry and has an Equivalent Weight (EW) of 790 g/eq.  The Ion Exchange Capacity (IEC) for this dispersion is ~ 1.25 meq/gr.  Polymer concentration for this dispersion is 25 wt%.  Solvent system is >99% water and is free of ethers.

This ionomer/dispersion product is based on Syensqo's sustainable technology for a new generation of high-quality Aquivion® ionomers and it is made without fluorinated processing aids.

Aquivion® ionomer dispersions are based on the unique Short Side Chain (SSC) copolymer of Tetrafluoroethylene (TFE) and Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-CF2CF2-SO2F produced by Syensqo (formerly known as Solvay Specialty Polymers). The unique SSC copolymer allows higher crystallinity, improved mechanical properties, and better proton conductivity compared to Long Side Chain forms of the PFSA dispersions. Aquivion® PFSA ionomers are currently being offered in chemically stabilized and standard forms. Any product that is manufactured with chemically stabilized dispersion (such as self-supporting membranes, mechanically reinforced membranes, MEAs, CCMs, electrodes, catalyst coated gas diffusion layers, etc.) will exhibit substantially lower fluoride ion release compared to the standard ionomer (also called non-stabilized ionomer) – a sign of improved chemical durability.  

The PFSA dispersions (also called ionomer) are supplied in the acidic form (-SO3H) and are available in various solvent systems, EWs and concentrations.  This particular dispersion is water based for its solvent system or dispersion medium.

These dispersions can be used to produce PEM fuel cell electrodes, catalyst inks for PEM fuel cells and electrolyzers, and electrochemical cell electrodes, to manufacture or repair ion exchange membranes, to produce super-acid catalysts, and for the surface treatment of PTFE membranes to improve wetting behavior.

• Very high concentration of functional groups for strong proton (or Na+, K+, Li+, etc.) conductivity
• High softening point for high temperature operation well above 80 ºC
• Strong water retention for better fuel cell operation at low-humidity conditions for membranes or catalyst inks that are utilizing this dispersion material

Aquivion® ionomer dispersions are based on the short side chain morphology and they would enable the manufacturing of products (membranes, dispersions, etc.) that have either better mechanical properties at the same IEC (ion-exchange capacity) or a higher IEC at the same mechanical properties than the products that are using long side chain (LSC) based PFSA dispersions.  A comparison of Short Side Chain and Long Side Chain PFSA dispersions from a chemical composition perspective is provided in the following image.

Aquivion® ionomer dispersions are considered hazardous items under DOT and IATA regulation. 125 mL and 250 mL dispersions will incur a hazardous fee to accommodate the regulations based on the final shipping location.

Please note that Aquivion® ionomer dispersions contain solvents that may compromise the seals of the bottles if the solvents are left in direct contact with the lids for long periods of time. We recommend always storing the bottles in an upright orientation as soon as the shipment is received to lessen the likelihood of inadvertent leakage.

 Aquivion® N+ 125D/251.612 Ionomer Dispersion Technical Data Sheet

Properties that are provided on the FuelCellStore website are directly taken from the technical documentation sheets provided by the manufacturer for consideration as "typical properties" and not to be construed as specifications.

A typical lead time of 3-4 weeks is to be expected.