摘要
用ＦＲＳ－ＸＲＳＡ、ＳＡＸＳ、ＤＳＣ表征了涤纶中空纤维在整个纺丝及后加工过程中结构的变化特征。结果表明，涤纶中空初生纤维基本是非晶态，在后加工过程中分两步结晶：拉伸应变诱导结晶和热结晶，在一次应变诱导结晶的同时伴随着纤维自卷形成三维卷曲，二次热结晶后形成长周期，使结构得以稳定。
In this paper,the structural change characterization of PET hollow fiber during total spinning process and later process was studied by mean of FRS-XRSA, SAXS and DSC. The results show that PET hollow nascent fiber is amorphous. There is two-step crystallization during later process: drawing-induction crystallization and thermal crystallization. Three-dimensional crimp is accompanied with fiber self-crimping at the same time of the first induction crystallization. Long periodicity is formed during the second thermal crystallization, and by which the structure is made in stable form.
出处
《功能高分子学报》
CAS
CSCD
1997年第4期491-497,共7页
Journal of Functional Polymers
关键词
结晶
取向
三维卷曲
涤纶
中空纤维
Crystallination
Orientation
Three-dimensional crimp
Hollow fiber
Poly(ethylene terephthalate)
