NREL

Humidity-dependent dynamic water (mass) uptake of ionomers and hydrophilic materials at a controlled temperature (20-85C) to determine sorption isotherms, dynamic diffusion coefficients, residual water. Also works with select organic solvents (vapors)

Measures and analyzes dynamic mechanical and rheological properties of materials (viscosity vs. shear rate)

Measuring particle size distribution and chemical properties ionomer dispersions and inks to quantify the effects of chemistry, catalysts and solvent compositions