We provide a wide range of rheology testing services ranging from rapid “rheology snapshots” for obtaining a quick overview of key characteristics to comprehensive and revealing profiles focusing on specific aspects of a material’s behaviour.
Rheology, the study of the flow and deformation of matter, offers a great set of tools for anybody looking to characterise the flow, texture, appearance and handling characteristics of their products. The combination of structural characteristics, flow behaviour and viscoelasticity all combine to contribute to material attributes such as:
- Pumping, mixing and filling behaviours
- Is your material shear thinning, shear thickening or newtownian?
- Suspension and emulsion stability
- Zero shear viscosity and yield stress are key rheological properties contributing to stability.
- Application and coating properties
- We can perform creep testing or assess thixotropic properties.
- Skin feel, mouth feel and sensory attributes
- We look at multiple metrics and with statistical models identify how a combination of these rheological properties work to contribute to sensory.
A wide variety of rheology analysis methods exist. Some of the more commonly used measurements and metrics that we can deliver include:
- Viscosity as a function of shear stress
- Viscosity as a function of shear rate
- Viscosity as a function of temperature
- Zero-shear viscosity measurements
- Yield stress and yield strain measurements
- Thixotropic breakdown rate
- Thixotropic recovery rates
- Elasticity under shear measurements
- Structure rigidity, complex, storage and loss modulus
- Phase angle and tan delta
- Oscillatory stress and strain sweeps
- Oscillatory frequency sweeps
- Oscillatory temperature sweeps and cycles
- Creep and recovery
Rheology testing is rapidly gaining ground as a critical technique for many product development, process design and quality control needs.