Keywords
Citation
(1999), "Advanced dual mode rheometer sets the standard", Pigment & Resin Technology, Vol. 28 No. 5. https://doi.org/10.1108/prt.1999.12928ead.009
Publisher
:Emerald Group Publishing Limited
Copyright © 1999, MCB UP Limited
Advanced dual mode rheometer sets the standard
Advanced dual mode rheometer sets the standard
Keywords: Bohlin Instruments, Viscosity
The new dual mode CVO120 Rheometer from Bohlin Instruments is said to produce accurate and precise viscosity data across a wide range of sample types in either strain or stress controlled modes (Plate 4). The instrument's modular design is believed to provide complete flexibility for measurement of low viscosity liquids, viscous fluids and solid materials.
Plate 4The dual mode CVO120 Rheometer from Bohlin Instruments
The company has pioneered the use of integrated technology and "intelligent" software testing to enable meaningful rheological experiments being performed by both new and inexperienced users.
Bohlin considers that in combination with other features in the CVO120 package, the "easy interpretation" data presentation screen ensures that previously complex data can be quantified both quickly and reliably.
Besides ease of use and extreme sensitivity, the instrument has been designed and engineered as a compact and robust unit. It is thus thought to be suitable for both research and industrial testing applications.
According to the manufacturers the CVO-120's dual modes of operation enable it to use either controlled shear stress or shear rate modes to emulate process conditions found in many industrial applications, e.g. mechanical stability of paper coatings, reverse gravure coating of adhesives, spraying of paints, screen printing of inks etc.
Normal force measurement is also available enabling properties such as extrusion die swell and coating characteristics to be more closely simulated. A specially designed high temperature cell (range -150°C to +550°C) claims excellent temperature control allowing samples to be studied in the melt form to provide complete materials characterisation.
Further details are available from Bohlin Instruments Ltd. Tel: +44 (0) 1285 644407; Fax: +44 (0) 1285 644314.