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Capillary rheometers.


The company has introduced a range of low temperature control options for the Rosand range of capillary capillary (kăp`əlĕr'ē), microscopic blood vessel, smallest unit of the circulatory system. Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arteries) and venules (smallest veins).  rheometers. High-pressure capillary rheometry is said to be a well-established method for simulating the processing conditions of molten polymers at high temperature. These two low temperature control options, which are designed for the RH7-D/ RH10-D and RH2000 rheometers, enable capillary rheometry to be applied to an extended range of materials. They comprise cooling coils with a fluids circulator for measurements from 5[degrees]C to 50[degrees]C and an option for cryogenic cooling using liquid nitrogen Noun 1. liquid nitrogen - nitrogen in a liquid state
atomic number 7, N, nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living
 for measurements to -40[degrees]C. The low temperature options are compatible with the full range of capillary dies for the Rosand rheometers and offer the possibility of measuring materials over a wide range of shear rates Shear rate is a measure of the rate of shear deformation:



For the simple shear case, it is just a gradient of velocity in a flowing material.
, according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 the company. (Malvern Instruments)

Circle 107 on card
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Title Annotation:Instruments
Publication:Rubber World
Date:Feb 1, 2005
Words:141
Previous Article:Non-contact 3D analysis.
Next Article:Temperature controllers.



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