We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A Study on Transreactions of PET/PEN Reactive Blending in a Twin-Screw Extruder Using an Axial Dispersion Model.
- Authors
Khonakdar, Hossein Ali; Golriz, Mahdi; Jafari, Seyed Hassan; Abedini, Hossein; Wagenknecht, Udo; Heinrich, Gert
- Abstract
Transreactions of PET and PEN melt-mixed in a twin-screw extruder are investigated. The extruder is modeled and characterized in the frame of a tubular system of closed type. The kinetic modeling is based on a modified second-order reversible reaction equation, which allows the dispersion equation to be solved analytically. The analysis shows a good agreement between the model and experiment. The axial dispersion model is employed to predict the extent of transesterification reactions ( X) and degree of randomness (RD). 1H NMR measurements are performed to estimate X and RD. Theoretical and experimental data are in good agreement. The model can thus be exploited to describe the effects of processing parameters, mixing time, mixing temperature, and blend composition on X and RD.
- Publication
Macromolecular Theory & Simulations, 2012, Vol 21, Issue 5, p340
- ISSN
1022-1344
- Publication type
Article
- DOI
10.1002/mats.201100106