Multiple Light Scattering
Using MLS technique, we analyze destabilization at the microscopic level, providing a complete reports showing destabilization kinetics, highlighting the differences between formulations and ranking them from the most stable to the least stable on the basis of a single number.
Alfatestlab ca provide a complete characterization of the destabilization phenomena by tracing trend graphics of:
- TSI versus aging time, particle size or concentration.
- Thickness of the phase (sedimentation, cloaking) over time.
By measuring the Zeta Potential of colloidal dispersions, we characterize the electrostatic stability of your sample, indicating the prevalence between repulsive electrostatic forces, which tend to maintain a dispersion stable over time, compared to the attractive ones like Van Der Walls, which push the particles or droplets to aggregate between them. For aqueous dispersions, a high zeta potential value (ie <-30mV and> + 30mV) means that the nanoparticles remain far from each other, far apart enough to eliminate the possibility of agglomeration, aggregation and / or flocculation. The measurement of the zeta potential thus provides a simple measurement for predicting the stability of aqueous dispersions.