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Upgrading Recycled HDPE by Rheometer-Controlled Crosslinking
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A. Pillo
Published/Copyright:
June 3, 2013
Abstract
An in-line rheometer previously described was evaluated for use in the upgrading of post-consumer, recycled HDPE. Feed resin of variable melt index was brought to a preset, uniform viscosity by peroxide induced crosslinking in a twin-screw extruder. Closed loop control was demonstrated using the rheometer as a viscosity sensor. Set-point tracking was achieved using PID-IMC, Dahlin and minimum variance (MV) controllers. The Dahlin controller showed the best load rejection.
Received: 1994-6-28
Accepted: 1996-7-29
Published Online: 2013-06-03
Published in Print: 1997-03-01
© 1997, Carl Hanser Verlag, Munich
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Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Screw Extrusion
- Upgrading Recycled HDPE by Rheometer-Controlled Crosslinking
- Blend Morphology of Linear Low Density Polyethylene and Polystyrene in a Non-Intermeshing Twin Screw Extruder
- Mixing
- A Study on the Reactive Compatibilization of a PBT/LCP Blend: Catalyst Effect
- Influence of Processing Temperature on the Morphological and Mechanical Properties of a PC/TLCP Blend
- Fibers
- The Effect of Drawing and Annealing Conditions on the Structure and Properties of Bacterial Poly(3-hydroxybutyrate-co-3 hydroxyvalerate) Fibers
- Numerical Analysis of Cooling Air Systems in Film Blowing
- Moulding
- On the Simulation of Thermoplastic Injection Moulding Process
- Molding
- Rheology of Layered Thermoplastic Matrix Composites during Compression Molding
- Studies of the Trans-Quinacridone Nucleation of Poly-(ethylene-b-propylene)
- The Role of Long Molecules and Nucleating Agents in Shear Induced Crystallization of Isotactic Polypropylenes**
Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Screw Extrusion
- Upgrading Recycled HDPE by Rheometer-Controlled Crosslinking
- Blend Morphology of Linear Low Density Polyethylene and Polystyrene in a Non-Intermeshing Twin Screw Extruder
- Mixing
- A Study on the Reactive Compatibilization of a PBT/LCP Blend: Catalyst Effect
- Influence of Processing Temperature on the Morphological and Mechanical Properties of a PC/TLCP Blend
- Fibers
- The Effect of Drawing and Annealing Conditions on the Structure and Properties of Bacterial Poly(3-hydroxybutyrate-co-3 hydroxyvalerate) Fibers
- Numerical Analysis of Cooling Air Systems in Film Blowing
- Moulding
- On the Simulation of Thermoplastic Injection Moulding Process
- Molding
- Rheology of Layered Thermoplastic Matrix Composites during Compression Molding
- Studies of the Trans-Quinacridone Nucleation of Poly-(ethylene-b-propylene)
- The Role of Long Molecules and Nucleating Agents in Shear Induced Crystallization of Isotactic Polypropylenes**
