Product category:
Powder, droplet and particle characterisation
News Release from: Malvern Instruments | Subject: Sysmex FPIA-3000
Edited by the Processingtalk Editorial
Team on 04 June 2007
Measure particle size and shape in
toners
With the development of wet chemistry methods for the production of print toners, information about particle shape as well as particle size is becoming increasingly important
The Sysmex FPIA-3000 automated particle size and shape analyser from Malvern Instruments is now widely used in the industry to provide valuable data essential for optimising both production and the products themselves Conventionally toners have been produced using a pulverisation process
This article was originally published on Processingtalk on 13 Jul 2006 at 8.00am (UK)
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Particle shape analyser in non-aqueous solvents
The Sysmex FPIA-3000 automated particle shape analyser now includes the facility to measure particles suspended in non-aqueous solvents, as well as those in water-based materials
Image analysis for particle shape measurement
Malvern Instruments has launched a new generation image analysis system for the fully automated characterisation of particle shape and size: the Sysmex FPIA-3000 is launched at Pittcon 2005
Particle size can be controlled to within +/- 0.3 - 0.5 mm for material with an average size of 8mm: size distribution can also be controlled.
Newer processes based on suspension or emulsion polymerisation have introduced a requirement for much closer control of particle shape and material properties, as well as particle size.
The fully automated Sysmex FPIA-3000 can measure particles in the range 0.8 to 300 microns and delivers both particle size and shape information.
Using a CCD camera, the system produces images of each particle and provides a scattergram of shape index versus particle size in just 2.5 minutes.
Samples pass through a sheath flow cell that transforms the particle suspension into a narrow or flat flow, ensuring that the largest area of the particle is oriented towards the camera and that all particles are in focus.
The CCD camera captures 60 images every second and these are analysed in real time.
Numerical evaluation of particle shape is derived from measurement of the area of the particle.
A number of shape factors are calculated including circularity, aspect ratio and circle equivalent diameter.
All measurements are stored, as are the particle images, and the system provides comprehensive data analysis and display parameters, together with a variety of options for data output. Request a free brochure from Malvern Instruments ...
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