Viscosity control for extrusion process using recycled polymers

Clarke, Alan, Nguyen, Bao Kha and McNally, Gerald (2015) Viscosity control for extrusion process using recycled polymers. Published in: Proceedings of the Second International Conference on Advances in Mechanical and Automation Engineering; Rome, Italy; 18-19 April 2015. 45-49. Institute of Research Engineers and Doctors ISBN 9781632480453

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Abstract

The aim of this paper is to develop a new extruder control system for recycled materials which has ability to automatically maintain constant a polymer melt viscosity of mixed recycled polymers during extrusion, regardless of variations in the Melt Flow Index (MFI) of recycled mixed grade high density polyethylene (HDPE) feedstock. A closed-loop controller is developed to automatically regulate screw speed and barrel temperature profile to achieve constant viscosity and enable consistent processing of variable grade recycled HDPE materials. The experimental results of real time viscosity measurement and control using a 38mm single screw extruder with different recycled HDPEs with widely different MFIs are reported in this work.

Item Type: Conference Proceedings
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ0212 Control engineering systems. Automatic machinery (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK0275 Electric standards and measurements
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Depositing User: Bao Kha Nguyen
Date Deposited: 17 Jul 2017 10:11
Last Modified: 17 Jul 2017 10:13
URI: http://sro.sussex.ac.uk/id/eprint/69279
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