Numerical study on mixing performance of glass fiber dispersion in a twin-screw extruder with backward-mixing elements

Kunihiro Hirata, Hiroshi Ishida, Motohiro Hiragori, Yasuya Nakayama, Toshihisa Kajiwara

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

In the kneading of glass-fiber-reinforced plastics by twin-screw extrusion, the use of a backward-mixing screw (BMS) element for melt mixing has been found to be effective in dispersing glass-fiber bundles. In this study, we use the computational fluid dynamics (CFD) to study the mechanism of dispersion by a BMS element for glass fiber bundles. The result of CFD for a BMS and a forward kneading disk (FKD) reveals that the melt mixing by a BMS is highly effective to act the required stress on overall resin. In addition, there is a good correlation between the incidence of undispersed glass-fiber bundles measured experimentally and the minimum value of distribution of the time-integrated stress calculated numerically. On the basis of the above results, we propose a method to predict the operating conditions in which the incident probability of undispersed glass-fiber bundles and thermal degradation are controlled.

本文言語英語
ホスト出版物のタイトルProceedings of PPS-30
ホスト出版物のサブタイトルThe 30th International Conference of the Polymer Processing Society - Conference Papers
編集者Sadhan C. Jana
出版社American Institute of Physics Inc.
ISBN(電子版)9780735413092
DOI
出版ステータス出版済み - 5 22 2015
イベント30th International Conference of the Polymer Processing Society, PPS 2014 - Cleveland, 米国
継続期間: 6 6 20146 12 2014

出版物シリーズ

名前AIP Conference Proceedings
1664
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他30th International Conference of the Polymer Processing Society, PPS 2014
国/地域米国
CityCleveland
Period6/6/146/12/14

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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