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Rheology testing.


Instruments for thermoplastics, thermosets thermosets, materials that can not be softened on heating. In thermosetting polymers, the polymer chains are joined (or cross-linked) by intermolecular bonding. Thermosets are usually supplied as partially polymerized or as monomer-polymer mixtures.  and elastomers, used in laboratories and production settings worldwide, are highlighted in this 12-page brochure. The instruments are built in small production runs, modular in design and can be customized. The Rheograph 200 is said to be the first automated 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).  rheometer rhe·om·e·ter
n.
An instrument for measuring the flow of viscous liquids, such as blood.
 operated by nitrogen. This unit features the choice between a single-barrel or dual-barrel system. The Rheo-Tester 1000 E is said to be the first modified capillary rheometer to produce extruded implants by discontinuous discontinuous /dis·con·tin·u·ous/ (dis?kon-tin´u-us)
1. interrupted; intermittent; marked by breaks.

2. discrete; separate.

3. lacking logical order or coherence.
 die extrusion. This stainless steel stainless steel: see steel.
stainless steel

Any of a family of alloy steels usually containing 10–30% chromium. The presence of chromium, together with low carbon content, gives remarkable resistance to corrosion and heat.
 covered die extruder is used in medical technology. The Rheo-Tester 2000 is modular in design and allows the optional integration of the die swell unit and elongational testing of polymer melts. The Rheo-Tester 500 is an entry-level capillary rheometer capable of generating a force of 5 kN to enable the measurement of viscosity flow curves over a wide range of shear rates for a broad range of materials. Mooney viscometers are also featured.

Gottfert

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Title Annotation:Literature: Instruments
Publication:Rubber World
Date:Dec 22, 2005
Words:162
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