𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The melting of a crystalline polymer in a screw extruder

✍ Scribed by J.R. Vermeulen; P.G. Scargo; W.J. Beek

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
476 KB
Volume
26
Category
Article
ISSN
0009-2509

No coin nor oath required. For personal study only.

✦ Synopsis

A theoretical model is developed to describe the melting mechanism in the transition zone of a screw extruder. The plug flow profile of the granules in the screw channel is calculated as a function of the screw speed, the barrel temperature and the mass flow rate. The assumptions made in this model were verified by the results of a number of carefully chosen experiments in an extruder with a simplified geometry. All experiments were carried out with a low density polyethylene.

πŸ“œ SIMILAR VOLUMES

Effect of screw axial vibration on polym
Effect of screw axial vibration on polymer melting process in single-screw extruders
✍ Jinping Qu; Guansheng Zeng; Yanhong Feng; Gang Jin; Hezhi He; Xianwu Cao πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 324 KB πŸ‘ 2 views

## Abstract A model for investigating the melting process of polymer in a vibration‐induced single‐screw (VISS) extruder is presented. The key feature of this model is as follows: vibration force field is introduced into the overall course of extrusion by the axial vibration of the screw, and the v

Effect of the melt viscoelastic behavior
Effect of the melt viscoelastic behavior of components on the morphology development of polymer blends in a twin-screw extruder
✍ L. Barangi; H. Nazockdast; F. Afshar Taromi πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 455 KB πŸ‘ 2 views

## Abstract The aim of this work was to study the role of effective parameters in the morphology evolution of polymer blends in a twin‐screw extruder with an emphasis on the effects of the melt viscoelastic properties of the blend components, screw speed, and flow field changes along the extruder.

Wet granulation in a twin-screw extruder
Wet granulation in a twin-screw extruder: Implications of screw design
✍ M.R. Thompson; J. Sun πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 572 KB

Wet granulation in twin-screw extrusion machinery is an attractive technology for the continuous processing of pharmaceuticals. The performance of this machinery is integrally tied to its screw design yet little fundamental knowledge exists in this emerging field for granulation to intelligently cre