PFSA Dispersion (D5, 5%), Alcohol based

"PFSA Dispersion (D5, 5%), Alcohol based" is a perfluorosulfonic acid based homogeneus solution that is used for catalyst ink preparation for PEM fuel cell and PEM electrolyzer during the MEA/CCM or electrode production, manufacturing of PFSA membrane via solution casting, solvent casting, tape casting, and generation of an ionically conductive medium in several other applications (such as chemical and electrochemical sensors, etc.).

D5, 5% dispersion expands the possibility of finding an excellent fit for your requirements, without diminishing the worth of Nafion D520/D521.

This dispersion has 5% PFSA polymer for its ionically conductive polymeric material content with the rest being water/alcohol based for the solvent system.  PFSA resin used to make this dispersion or ionomer solution is made from a chemically stabilized perfluorosulfonic acid (PFSA) / polytetrafluoroethylene (PTFE) copolymer in the acid (H⁺) form.  Chemical stabilization is also known as end-group stabilization.

Please note that 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.

Please contact us if you plan to order over 1 Liter of various dispersions.

Please contact us at sales@fuelcellstore.com for the technical data sheets (TDS) and safety data sheets (SDS).

Note: We ship all dispersions in 25 mL increments to avoid additional Hazardous Shipping fees. 

PFSA Polymer Dispersions Properties
Equivalent Weight (EW)	Proprietary
Polymer Content (wt. %)	5.0 min and 5.5 max
Water Content (wt. %)	47.5 ± 1
VOC Content (wt. %)	47.5 ± 1
Specific Gravity	0.92 - 0.95
Available Acid Capacity (meq/g, H+ polymer basis)	1.05 - 1.12
Viscosity (25 deg C)	5 - 50 cp

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