科研之友
微信
新浪微博
Facebook
分享链接
摘要
Based on the multifilament model with cross air blowing proposed by Dutta (1987) and the assumption that the quench air temperature around the filament obeys an exponential distribution, a multifilament model suitable for the annular air blowing condition of PET staple fiber melt spinning is proposed. The quench air velocity, quench air temperature, filament velocity, filament temperature, etc. at different positions were predicted and the relation between birefringence and the important quality index of as-spun fiber, Eys1.5 (elongation corresponding to 1.5 times the yielding stress in a stress-strain curve) was obtained through experiment. The as-spun fiber properties of PET staple and its variability were predicted and the effects of spinning conditions and spinneret design on as-spun fiber properties were discussed and verified.
- 出版日期2007-8
- 单位东华大学
