Optimize the texture and performance of your products through rheological analysis
Understanding rheology to master the behavior of materials
Rheology is an essential science for industry, enabling the study of the mechanical behavior of materials under stress. It is particularly used to analyze the viscosity, elasticity, and texture of fluids, semi-solids, and deformable solids. Rheological analyses allow for the optimization of formulations, the assurance of product stability, and the monitoring of performance under real-world conditions.
How does rheological analysis work?
Rheological analyses are performed using various instruments: rheometers, Hall or Carney cone viscometers, which apply different stresses to the samples to measure their mechanical response. Depending on the type of test, these instruments can operate in shear, oscillation, or controlled flow regimes.
- Hall or Carney cone: allows measurement of flowability according to specific standards (ASTM B213, ISO 4490, ASTM B964, etc.)
- Rotational rheometry : allows analysis of viscosity and plasticity by applying a controlled stress.
- Oscillation rheometry : used to study the structuring of materials by measuring the viscoelastic response.
- Extrusion measurement: useful for understanding and testing the influence of extrusion parameters on production
- Measurements under different conditions : analyses carried out under various temperatures, shear rates and humidity levels to simulate real-world operating conditions.
Technical characteristics of rheological tests
- Analyzable viscosity range : from a few mPa·s (very fluid) to several million Pa·s (very viscous materials).
- Measurement modes : rotation, oscillation, controlled shear, variable stresses.
- Temperature range : analyses possible from -40 °C to +300 °C depending on the materials and applications.
- Compatibility with various types of samples : powders, gels, creams, melted polymers, aqueous solutions, emulsions, etc.
- Applicable standards : ISO 3219 (shear viscosity), ASTM D4440 (viscoelastic behavior), DIN 51810 (thixotropic analysis), etc.
For which matrices is rheological analysis suitable?
Rheology applies to a wide variety of matrices and samples, including:
Main industrial applications
Rheological testing is essential for many industrial sectors:
Léa Géréec
Technical and scientific advisor
