Malvern’s range of rheometers, particle size and particle shape instruments can be used to characterize a wide range of greases and lubricants.
With a rheometer, the lubrication and tribological properties of industrial greases can be measured at differing temperatures and shear conditions, allowing the following to be characterized:
- Grease sagging
- Sedimentation resistance
- Pumping characteristics
- Thixotropic index
- Freeze and thaw moduli and temperature
- Tribology / lubricity.
Particle size analyzers can be used to quantify:
- Particle size
- Stability of colloidal lubricant suspensions.
These characteristics can easily be correlated to the samples microstructure, processability and ultimately its in-use performance.
The use of both rheology and particle size together are a powerful tool to help chemists correlate their sample results with formulation changes, leading to an optimized end product.