Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.6
5.0
Journals
Polymers
Special Issues
Screw Extrusion: Progress in Polymer Processing
share announcement

Screw Extrusion: Progress in Polymer Processing

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Processing and Engineering".

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 2972

Special Issue Editor

Prof. Dr. Berzin Françoise

E-Mail Website
Guest Editor
UMR614 FARE (Fractionnement des AgroRessources et Environnement), Université de Reims Champagne-Ardenne, 2 esplanade Roland-Garros, 51686 Reims, France
Interests: single-screw extrusion; twin-screw extrusion; extrusion dies; reactive extrusion

Special Issue Information

Dear Colleagues,

Screw extrusion is among the most important polymer processes, with many applications in various industrial sectors. The aim of the Special Issue is to make a point on recent advances and developments concerning the different aspects of this process: single screw extrusion, twin-screw extrusion, die flows, reactive extrusion.

We are pleased to invite you to submit a paper in this Special Issue of Polymers, the deadline of which is April 2022. Original research articles and reviews are welcome. This Special Issue aims to gather contributions which cover the different aspects of the Extrusion Processes, such as experimental characterization, modelling and simulation, process optimization, process control, instrumentation, development and properties of new materials, industrial applications, etc.

We look forward to receiving your contributions.

Prof. Dr. Berzin Françoise
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • single-screw extrusion
  • twin-screw extrusion
  • extrusion dies
  • reactive extrusion

Published Papers (1 paper)

Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 2421 KiB  
Article
Experimental Investigation of the Solid Conveying Behavior of Smooth and Grooved Single-Screw Extruders at High Screw Speeds
by Kai S. Johann, Stephan Mehlich, Marcus Laichinger and Christian Bonten
Polymers 2022, 14(5), 898; https://doi.org/10.3390/polym14050898 - 24 Feb 2022
Cited by 3 | Viewed by 2457
Abstract
Single-screw extrusion at high screw speeds is established nowadays since it allows for a high mass throughput at a comparatively small extruder size. Compared to conventional extrusion at low screw speeds, a considerable non-linearity in mass throughput appears by exceeding a certain threshold [...] Read more.
Single-screw extrusion at high screw speeds is established nowadays since it allows for a high mass throughput at a comparatively small extruder size. Compared to conventional extrusion at low screw speeds, a considerable non-linearity in mass throughput appears by exceeding a certain threshold screw speed. In this study, the solid conveying behavior of different plastic granules with varying geometries was investigated in a smooth, a helically and an axially grooved solid conveying zone for screw speeds up to 1350 rpm. These experimental findings are compared to classical analytical predictions in the literature. It is found for the first time that both the shape and size of the plastic granules play a decisive role in determining the threshold screw speed at which a non-linear mass throughput is observed. It is shown that small and spherical granules exhibit a later onset of non-linear throughput compared to larger lenticular and cylindrical shaped granules. Moreover, it is revealed that the mass throughput equalizes for an axially and a helically grooved solid conveying zone at high screw speeds. This is contrary to the low screw speed range where the axially grooved barrel results in a significantly higher throughput than the helically grooved barrel. Thus, the maximum throughput at high screw speeds is limited by the granule stream provided by the hopper opening and is no longer governed by the groove angle. Full article
(This article belongs to the Special Issue Screw Extrusion: Progress in Polymer Processing)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-1
Back to TopTop