Solvay Specialty Polymers Aquivion® D79-20BS Tetrafluoroethylene + SFVE (TFE+SFVE)

Aquivion® PFSA dispersions are based on the unique Short Side Chain (SSC) copolymer of Tetrafluoroethylene and a Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-CF2CF2-SO2F. The PFSA ionomer dispersions contain its acid form (R-SO3H) and are available in various solvent systems, EWs and concentrations. Aquivion® PFSA dispersions can be used for the production of PEM fuel cell electrodes, electrochemical cell electrodes, manufacture or repair of ion exchange membranes, super-acid catalyst production or surface treatment of PTFE membranes to improve wetting behavior.Additional Properties: Density - Internal Method (25°C): 1.115 g/cm³; Equivalent Weight (EW) - Internal Method 770 to 810 g/eq; Flammability - No; HSE/Transport Classification - Corrosive; Polymer Concentration - TGA 20 %; Solvent System - >99 % Water, free of ethers. chemically stabilized; Solvent Water Content - > 99 %; Total Acid Capacity - Internal Method 1.23 to 1.30 meq/g; Viscosity - (25°C): 5 to 15 mPa·sInformation provided by Solvay Specialty Polymers.