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Dispersions Characterization
Extensive characterization services are available for both aqueous and non-aqueous dispersions of nanomaterials. NEI has the capability to assess dispersion stability in terms of pH, electrophoretic mobility, zeta potential and viscosity. Further quantitative analysis of dispersion quality is also available, including solids content, rheology, aggregate size, optical transmission, and transmitted haze. Variations in these properties may also be determined as a function of time and/or temperature.
Our expertise and state-of-the-art equipment enable us to satisfy all of your testing needs with excellent precision at a competitive price and in a timely manner (view & download our NDA).
Characterization Services
A full list of our dispersions characterization services can be found in the table below.
Analysis / Test | Options | Turn Around Time |
---|---|---|
Viscosity (Brookfield Concentric Cylinder Viscometer) | • Room temperature • Each additional temperature (-5°C - 100°C) • Full Range (-5°C - 100°C, 10 points) | • 2 - 3 business days • 2 - 3 business days • 2 - 3 business days |
Zeta Potential (in water) | • At neutral pH • Multiple points (pH range: 1-13, 13 points) • Isoelectric point • In solvent | • 2 - 3 business days • 2 - 3 business days • 2 - 3 business days • Varies (contact) |
Infrared Spectroscopy | • IR Spectra (ATR) • Transmission Range (Wavenumber: 500 - 4000 cm-1) • Functional Group Analysis | • 1 - 2 business days • 1 - 2 business days • 4 - 5 business days |
UV-Vis Spectroscopy (Range: 190 - 1100 nm) | • N/A | • 1 - 2 business days |
Cu2+ Ion Concentration | • N/A | • 1 - 2 business days |
pH Measurement | • N/A | • 1 - 2 business days |
Tap Density | • N/A | • 1 - 2 business days |
Water Solution Electrical Conductivity | • N/A | • 1 - 2 business days |