Technical Specification

• Zeta potential determination on macroscopic solid surfaces: metal, glass, ceramic, plastic plates, foils, granulates, powder, fibers
• Various measuring cells:
  • Clamping cell: sample size: >25 mm x 50 mm
  • Adjustable gap cell: sample size: 10 mm x 20 mm or 14 and 15 mm diameter
  • Cylindrical cell (powder, fibers): particle size: >25 µm
  • Electrolyte: 0.001 mol/l KCl

Applications

• Characterization of adhesive surface modifications as a function of pH value
• Zeta potential determined by flow potential measurement or flow current measurement
• Single measurement - zeta at pH value of the electrolyte
• pH titration measurement - pH dependence of the z (pH range: 3- 9), determination of the isoelectric point (IEP, zeta = 0)

Technical Specification

• Size range: 0.6 - 6000 nm
• Size range for zeta potential: 5 - 10 µm
• Concentration range 0.00001 % v/v - 40 % w/w
• Molecular weight range 1,000 - 20,000.000 g/ml
• Temperature range 2 - 90 °C

Applications

• Determination of particle parameter out of dispersed liquids
• Hydrodynamic diameter
• Molecular weight
• Zeta potential