Premium
Measuring the residence time distribution in a twin screw extruder with the use of NIR‐spectroscopy
Author(s) -
Laske Stephan,
Witschnigg Andreas,
Selvasankar Ramesh Kumar,
Holzer Clemens
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39919
Subject(s) - residence time distribution , plastics extrusion , polypropylene , tracer , materials science , residence time (fluid dynamics) , near infrared spectroscopy , spectroscopy , analytical chemistry (journal) , composite material , chemistry , optics , chromatography , mineralogy , physics , inclusion (mineral) , geotechnical engineering , quantum mechanics , nuclear physics , engineering
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.