The co-rotating twin-screw extruder is a particularly versatile and flexible device which can be configured to provide an array of mixing functions in a desired sequence. This review considers the mixing functions which can range from intensive dispersive to laminar distributive, depending on the configuration of screw bushings, kneading blocks, distributive mixing units, and/or other specialized element types along the shafts. Special feeding procedures which are needed for successful mixing of a product are also discussed.

Compounding in Co-Rotating Twin-Screw Extruders considers the geometric structure of modular extruders, development of the various units of an extruder and their functions, the flow mechanisms and models of their behavior, and experimental studies of extruder performance and applications. This report will be especially valuable to compounders, material developers, extruder designers, and anyone else interested in twin-screw extruders.

Rapra Review Reports contain a brief overview of the topic, followed by extensive references, with abstracts, from the Rapra database. They serve as condensed, valuable research tools for scientists, technologists, and other researchers working with rubber or plastics materials.

Table of Contents:

Overview

Mixing Principles

Co-Rotating Geometry and Screw Configuration

Flow Analysis in Co-Rotating Twin-Screw Extruders

Experimental Studies and Applications

Future Directions

Additional References

References from the Rapra Abstracts Database

Index