Polymer rheology analysis laboratory
You want to carry out rheological analyses of polymers
What is rheological analysis of polymers?
Rheological analyses of polymers are used to study the mechanical properties and behaviour of polymers under the effect of stress or deformation. They measure the way in which materials flow and deform in response to an external force, which is essential for understanding their behaviour as a function of temperature, pressure or time.
Rheology and flow velocity of polymers
Polymer deformation and flow are issues related to the characterisation of materials under stress.
- The deformation of a polymer refers to the change in shape or volume of a material in response to a force. There are two main types of deformation: elastic and plastic. Elastic deformation is temporary, meaning that the material returns to its original shape once the force has been removed. Plastic deformation, on the other hand, is permanent, meaning that the material does not return to its original shape once the force has been removed.
- Polymer flow refers to the continuous movement of a material under the effect of an applied force. It is a characteristic mainly associated with fluids, although some solids can also flow under certain conditions, particularly thermal conditions. Flow is influenced by the viscosity of the material.
Knowing how a polymer deforms and flows can help predict its behaviour in structures under load, in product formulation and in the design of industrial processes.
The main properties measured during rheological analyses of polymers
The main characteristics studied during rheological analyses of polymers are as follows:
- Viscosity: the material’s resistance to flow.
- Elastic modulus: the ability of a material to return to its initial shape after deformation.
- Viscous modulus: the tendency of a material to flow irreversibly when a stress is applied to it.
- Viscoelastic behaviour: the combination of elastic (reversible) and viscous (irreversible) responses of the polymer.
The FILAB laboratory can help you with your rheological analyses of polymers
Why carry out rheological analyses of polymers in the laboratory?
Performing rheological analysis of polymers in the laboratory enables theviscoelastic, viscous and elastic properties of materials tobe identified and quantified , providing information for many industrial and research applications.
Understanding the rheology of polymers is important for the development and manufacture of many products, such as plastics, rubbers, adhesives, coatings and composite materials.
the challenges of polymer rheology
Determining the flow threshold level
Determining thixotropy recovery
Determining elasticity under flow conditions
Determining sensitivity to shear
Determining creep
Determining capillary instability
our polymer rheology services
Powder flow speed
Searching for nanoparticles in powders
Determining the shear rate
Determining a PET's viscosity index
Viscosity and density measurement
Our technical resources for polymer rheology
Viscometer
Rheometer
Planar rheometer
