Aeration/Fluidisation of Powders: FT4 Powder Rheometer Aeration Module
With an operating range down to a velocity of 0.02 mm/s, the Aeration Control Module delivers the high degree of control at very low flow rates that is essential for characterizing powders sensitive to the addition of a very small quantity of air.
Click Here To Download:
•FT4 Powder Rheometer: Universal Powder Tester Brochure
•White Paper: The Importance Of Air Content On The Rheology Of Powders — An Empirical Study Using The FT4 Powder Rheometer
•White Paper: Characterizing Powders For Optimized Pharmaceutical Processing
•White Paper: Intelligent Powder Processing
•Video: FT4 Powder Rheometer: V14_Dynamic Flow Mode
The bulk properties of powders are affected by the presence of entrained air which fills the spaces between the particles. The removal or addition of this air can radically change the flow properties of a powder — often by a factor of 100 or even 1000. When aerated, the contact between particles is reduced and less energy is required to cause flow. For some powders, complete separation of individual particles results in fluidization when the powder behaves as a fluid. This reduction of flow energy is described by the Aeration Ratio (AR), which can be measured automatically using the Aeration Control Module on the FT4 Powder Rheometer, a universal powder tester.
The Aeration Control Module is under the direct control of the FT4's control system allowing the following types of automated testing, with no operator involvement:
- Aeration or fluidization assessments to determine response to increasing levels of aeration — up to fluidization velocities where appropriate
- De-aeration testing to determine how readily a given powder releases entrained air following aeration
- Permeability measurements derived from measurements of pressure drop across a powder bed at varying levels of bed consolidation pressures
With an operating range down to a velocity of 0.02 mm/s, this module also delivers the high degree of control at very low flow rates that is essential for characterizing powders sensitive to the addition of a very small quantity of air.
Click Here To Download:
•FT4 Powder Rheometer: Universal Powder Tester Brochure
•White Paper: The Importance Of Air Content On The Rheology Of Powders — An Empirical Study Using The FT4 Powder Rheometer
•White Paper: Characterizing Powders For Optimized Pharmaceutical Processing
•White Paper: Intelligent Powder Processing
•Video: FT4 Powder Rheometer: V14_Dynamic Flow Mode