Measuring Resin Temperature During Extrusion Using a Fluorescence Technique

Published

January 30, 2003

Author(s)

Anthony J. Bur, S C. Roth, D W. Baugh, K A. Koppi, M A. Spalding, J Gunderson, W C. Buzanowski

Abstract

We have used a temperature sensitive fluorescent dye, doped into polycarbonate, to monitor the true resin temperature during extrusion processing. The fluorescent dye, perylene, was doped into the polycarbonate at very low concentration. We apply this measurement concept to extrusion processing by using an optical sensor that accesses the machine at standard instrumentation ports. The sensor has a confocal optics design that permits the measurement of temperature profiles. With the sensor looking over the screw of a single extruder, temperature profiles from the barrel wall to the core of the screw were obtained as a function of screw rpm, screw design and melt flow index.

Proceedings Title

Proceedings of the Annual Technical Meeting of the Society of Plastics Engineers

Volume

19(8)

Conference Dates

May 1, 2003

Conference Title

Society of Plastics Engineers. Technical Meeting

Pub Type

Conferences

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Keywords

extrusion, fluorescence spectroscopy, polycarbonate, polymer processing, resin temperature, temperature profile

Citation

Bur, A. , Roth, S. , Baugh, D. , Koppi, K. , Spalding, M. , Gunderson, J. and Buzanowski, W. (2003), Measuring Resin Temperature During Extrusion Using a Fluorescence Technique, Proceedings of the Annual Technical Meeting of the Society of Plastics Engineers, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852151 (Accessed October 17, 2025)