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Viscosity control for extrusion process using recycled polymers
conference contribution
posted on 2023-06-09, 07:14 authored by Alan Clarke, Bao Kha NguyenBao Kha Nguyen, Gerald McNallyThe 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.
History
Publication status
- Published
Journal
Proceedings of the Second International Conference on Advances in Mechanical and Automation Engineering; Rome, Italy; 18-19 April 2015Publisher
Institute of Research Engineers and DoctorsExternal DOI
Page range
45-49ISBN
9781632480453Department affiliated with
- Engineering and Design Publications
Full text available
- No
Peer reviewed?
- Yes