Keywords
Citation
(2004), "New melt tension apparatus with automatic spooling – compatible with latest generation capillary rheometers", Pigment & Resin Technology, Vol. 33 No. 3. https://doi.org/10.1108/prt.2004.12933cad.007
Publisher
:Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited
New melt tension apparatus with automatic spooling – compatible with latest generation capillary rheometers
New melt tension apparatus with automatic spooling – compatible with latest generation capillary rheometers
Keywords: Rheology, Measurement, Instruments
Bohlin Instruments has introduced a melt tension or “haul off” measurement apparatus that incorporates an automated spooling device for neat collection and storage of the extrudate. The new device is compatible with Bohlin's latest generation of Rosand capillary rheometers – the RH7D and the RH10D – and can be operated directly from the Rosand Flowmastere™ software (Plate 3).
Plate 3
Rosand capillary rheometers
The automatic spooling feature avoids any tangling which might occur at high take up rates on a conventional “pinch” roller system. Interchangeable spools also allow easy management of extruded samples for other measurements such as tensile testing. Moving parts are shielded by a transparent guard for operator safety.
A further advantage of the apparatus is its exceptionally wide operating range and versatility. Melt take up speeds can be set up to 2,000 m/min with a dynamic range in speed of 100,000 : 1. Melt tension is measurable down to 0.005 g. If required, the unit can be used in conjunction with the Rosand post extrusion oven, which provides a temperature controlled environment below the extrusion die.
For further information on the above and all Bohlin products, contact: E-mail: sales@bohlin.co.uk or visit our Web site: www.bohlin.com