ISSN:
0730-6679
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Changes in air quality standards and new polymer manufacturing technologies have renewed interest in polymer melt devolatilizing. Unfortunately, little data is available to aid in the design and scale up of melt devolatilizing single-screw extruders.As part of the ongoing development activities of Farrel Company, melt devolatilizing in various devices has been under study for a number of years. In order to be able to develop analytical methods of predicting performance and scaling up from small scale test stands, some elementary devolatilizing studies were carried out. Theoretical predictions based on classical diffusion theory were compared with actual results, leading to a revised model of the actual melt devolatilizing process. Based on this revised model, several novel single screw devolatilizing concepts were proposed, built and tested. In this paper, we are presenting some of the theoretical work underlying these studies as well as test results on conventional single-screw devolatilizing sections. We hope to be in a position to divulge additional information on some of the novel devolatilizing devices at the time of the presentation of the paper.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/adv.1983.060030207
Permalink
