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Journal of Plastics Technology 2014/01

Semi-empirical equations for the description of Rheotens measurements

Semi-empirical equations for the description of Rheotens measurements

As a lab-scaled spinning device the Rheotens test is a well-established method to evaluate the extensional properties of polymer melts. The study presented proposes novel semi-empirical expressions for the description of the force versus draw ratio curve of Rheotens measurements. As a fact of its relevance for spinning processes, a commercial polypropylene grade was used. For the first time a fitting routine is revealed considering not only the steady-state curve of the experiment but also the force oscillations commonly known as draw resonance. Applying the fit function one has access to the melt strength and the critical draw ratio which are characteristic material parameters. This tool enables one to investigate or benchmark polymers whether they are suitable for fibre spinning.

M.Sc. Peter Kunzelmann, B.Sc. Stefan Danzer, Prof. Dr. rer. nat. habil. Dirk W. Schubert
Institute of Polymer Materials, University of Erlangen-Nuremberg

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The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)


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International Polymer Processing

International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.

The journal covers research and industrial application in the very specific areas of designing polymer products, processes, processing machinery and equipment.


International Polymer Processing


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The Journal of Plastics Technology is indexed in SCOPUS, the largest abstract and citation database of peer-reviewed literature.