Temperature gradients in the channels of a single-screw extruder

• Published in: Polymer engineering and science Vol. 44; no. 11; pp. 2148 - 2157
• Main Authors: Bur, Anthony J., Roth, Steven C., Spalding, Mark A., Baugh, Daniel W., Koppi, Kurt A., Buzanowski, Walter C.
• Format: Journal Article
• Language: English
• Published: New York Society of Plastics Engineers, Inc 01.11.2004; Wiley Subscription Services; Blackwell Publishing Ltd
• Subjects: Analysis; Applied sciences; Chemical engineering; Chemical processes; Exact sciences and technology; Extruders; Extrusion moulding; Fluorescence; Machinery and processing; Moulding; Plastics; Polycarbonate resins; Polymer industry, paints, wood; Technology of polymers; Temperature; United States; Fluorescent tracer; Process control; Optical sensor; Temperature control; Measurement method; Single screw extruder; Perylene; Experimental study; Polycarbonate; Extrusion molding

We used a temperature‐sensitive fluorescent dye, perylene, to monitor the true resin temperature during extrusion of polycarbonate. The measurement involved doping polycarbonate with perylene and detecting fluorescence with an optical sensor that accesses a standard instrumentation port on a barrel...