Unilever Extensional Shear Cell
06 Dec 2011
Yes
-  

 

 

In contrast to the MCR501 Rheometer, this is a shear flow cell of the Taylor-Couette design with a static, thermostatted, inner stator and a revolving outer cylinder. There are no rheological force transducers. A set rotation speed is assumed to impart a

No
​Unilever Couette Cell
 

The stator and outer cylinder are both made from the same synthetic quartz as standard SANS sample cuvettes but this, and the method of assembly, limits the apparatus to an operational temperature range of 10 - 50 °C. The apparatus is fitted with a two-part lid to prevent sample spillage and to reduce evaporative losses. The total sample path length is 1 mm and the volume of sample required is approximately 8 ml. In some instances this can be reduced to 4 ml.

Rotational speeds range from >1 to 3000 rpm, approximately corresponding to shear rates from >5 to 15000 s-1. A very limited degree of oscillatory shear is also possible.

Contact: