Measuring the residence time distribution in a twin screw extruder with the use of NIR-spectroscopy

ABSTRACT The mean residence time (MRT) and the residence time distribution (RTD) of polypropylene in a twin‐screw extruder was determined directly in‐line with the help of near infrared (NIR) spectroscopy and the use of an UV‐absorber as tracer. Different experiment alignments such as screw speed, m...

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Veröffentlicht in:	Journal of applied polymer science 2014-03, Vol.131 (6), p.np-n/a
Hauptverfasser:	Laske, Stephan, Witschnigg, Andreas, Selvasankar, Ramesh Kumar, Holzer, Clemens
Format:	Artikel
Sprache:	eng
Schlagworte:	Alignment Applied sciences Exact sciences and technology extrusion Extrusion moulding Machinery and processing Materials science Moulding Plastics Polymer industry, paints, wood Polymers properties and characterization Technology of polymers thermoplastics
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Zusammenfassung:	ABSTRACT The mean residence time (MRT) and the residence time distribution (RTD) of polypropylene in a twin‐screw extruder was determined directly in‐line with the help of near infrared (NIR) spectroscopy and the use of an UV‐absorber as tracer. Different experiment alignments such as screw speed, mass throughput, back pressure as well as tracer content and their influence on MRT and RTD have been investigated. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2014, 131, 39919.
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.39919