Aims and Scope
Dispersion letters is an information platform dedicated to spread and exchange information between those working in various fields of dispersion research, phase separation, formulation, dispersion processing and quality control. It is dedicated predominantly to experimental and applicational work explored with analytical instruments developed by LUM. Dispersion Letters publishes on-line articles, technical notes and reviews.
Our latest entries:
See the abstracts for our new workshop 2013.
Composite materials fulfil a great variety of functions in a wide field of applications. Testing the composite properties under environmental conditions is a must for development and quality control. Common tensile strength test instruments have limitations, like single sample handling only.
Characterization of sedimentation and consolidation behaviour of kaolin suspensions in presence of dispersant
During processing and application of kaolin usually dispersants are used. For optimization evaluation of the sedimentation behaviour of suspensions can deliver important information. Sedimentation and consolidation/packing behaviour of kaolin suspensions was characterized as function of solids and dispersant concentration and centrifugal acceleration by multisample analytical centrifugation with high resolution photometric detection.
Density determination is a routine task for liquids and solids, but a challenge for soft particles or fractals dispersed in liquids. The difficulties may be overcome by measuring creaming or sedimentation velocity of those particles dispersed in liquids differing in density. Two approaches were worked out.
Prueba principal: Los resultados de LUMiSizer / LUMiFuge dependen de el tipo de celdas que contienen las muestras en el análisis?
Varios tipos de celdas quieren ser probadas mediante LUMiReader, LUMiFuge y LUMiSizer con el objetivo de evaluar diferentes propiedades de las muestras, como son la conveniencia de disolventes, la concentración en volumen y el grado de opacidad.
Diversas células são testadas no LUMiReader, LUMiFuge e LUMiSizer para verificar diferentes propriedades como volume, concentração e turbidez.