Premium
Resin distribution along axial and circumferential directions of self‐wiping co‐rotating parallel twin‐screw extruder
Author(s) -
Ohara Masatoshi,
Tanifuji Shinichiro,
Sasai Yuya,
Sugiyama Takemasa,
Umemoto Sho,
Murata Junichi,
Tsujimura Isao,
Kihara Shinichi,
Taki Kentaro
Publication year - 2020
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.17018
Subject(s) - extrusion , materials science , plastics extrusion , mechanics , finite element method , flow (mathematics) , composite material , process (computing) , mechanical engineering , structural engineering , computer science , engineering , physics , operating system
A self‐wiping co‐rotating twin‐screw extruder (TSE) is operated in a starved state in which the screws are partially filled with resin. Understanding the resin distribution on the screw surface of a TSE in this state is essential for the design, operation, and maintenance of the twin‐screw extrusion process. Accordingly, in this study, the circumferential and axial distribution of resin in a TSE were simulated using a novel method combining the mathematical formulation of Hele–Shaw flow, the finite element method, and a newly developed down‐wind pressure updating scheme. The results of the simulation were found to be in good agreement with experimental measurements. The proposed simulation method enables the detailed visualization of resin distribution in the entire axial and circumferential directions over the length of a TSE, improving the ability to determine both the devolatilization and fiber attrition during the extrusion process.