Zeta potential is a measure of the push or pull value between grains. Zeta potential measurement provides detailed information about the dissipation mechanisms and is the key to electrostatic dissipation control. A grain of a certain charge attracts counter-charged ions in suspension, as a result, a strong bond surface forms on the surface of the charged particle, and then a surface that extends outward from the surface of the charged particle. Within this extended surface is a boundary called the "slip surface". The charged particle and the part up to the sliding surface boundary of the ions around it act as a single piece. The potential at this slip surface is called the zeta potential and is affected by both the surface structure of the grain and the content of the liquid it is in. The behavior of particles in polar liquids is determined by the zeta potential values, not the electric charge on their surfaces.

Instrument: MALVERN Nano ZS90

Specifications

• Temperature range: 20 ºC to 90 ºC
• Refractive index range: 1.2 to 1.65

Sample Requirements

• Solid-liquid mixtures and colloids

Applications

• Polymer and proteins (cluster measurements)
• Nanoparticles
• Emulsion stability (Grain size size and Zeta potential)
• Pigments (Pigment color and hue depend on grain size)
• Wastewater treatment (Conditions for agglomeration of particles in wastewater)
• Ceramic processes (Dispersion quality of ceramic suspensions)
• Liquid ink and toners