Viscosity is a measure of flow resistance. Rheology refer to the determination of the flow behaviour of a fluid under gravity or under a given force, e.g. injection of thermoset resin into tiny channels in rock for sealing purpose.
Viscosity can be monitored by cappilary viscometers, rotational viscometer or with a rheometer.
Rheometers are very convenient since it is possible to measure the viscosity from very low (0.001/s) to very high shear rates (1000/s) which gives the viscosity function in one single measurement.
The viscosity function can be used in a simulation model to predict the flow behaviour e.g. the pressure drop during flow in tubings, the pump pressure requried to achieve a certain flow rate among others.
Services
Prediction of curing behaviour of thermoset
Hydration of concrete and degree of hydration
Simulation of temperature and conversion profiles in thick walled structures during curing/hydration
Keywords
Newtonian flow
Non-Newtonian flow
Viscosity
Viscosity function
Pseudo-plastic flow behaviour
Thixotropy
Shear stress
Thixotropic fillers
Rheometer
Viscometer






Polymer technology
Polymer materials
Polymer processing
Characterisation
Curing of thermoset

Epoxy technology
Curing progress
Conversion, vitrification
Curing kinetics
Resin and curing systems

Analysis & Characterisation
DSC, TGA
DMA
Tensile testing
Creep testing
Diffusion properties
Stability and lifetime
Accelerated ageing
Climate chamber
Life time prediction
Reaction kinetics
Life time extension

Simulation & Modeling
Heat transfer
Structural mechanics
Flow properties
Diffusions properties
Electric properties

Flow properties
Viscosity
Viscosity function
Pseudo-plastic
Thixotropy
Flow behaviour
