摘要
在基本纺丝动力学方程的基础上,引入显著的应力诱导结晶作用,运用改进的Euler方法和牛顿二分法,通过计算机求解动力学方程组,模拟涤纶HOY结构的形成过程,获得了纤维结构形成与卷绕速度、质量流量和侧吹风温度的关系。结果表明,增大卷绕速度或减小质量流量,有利于增大纤维的结晶度及双折射,侧吹风温度降低使结晶位置移向喷丝孔方向。计算机模拟的结果与相关文献给出的实验结果吻合良好。
A computer modeling of PET HOY structure formation was developed based upon a combination of fundamental spinning kinetic equations, stress-induced crystallization, Euler＇s equation and Newton＇s dichotomy. The relationship between fiber structure formation and take-up speed, mass flow and cross air temperature was discussed. The results showed that the increase of take-up speed and the decrease of mass flow can stimulate the growth of crystallinity and birefringence, and the drop in cross air temperature can make crystallization position shift towards spinneret. The results obtained from computer modeling coincided with the emperimental results provided by literatures.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2005年第4期13-16,共4页
China Synthetic Fiber Industry
基金
中国石化上海石化股份有限公司合作项目(10603064)。
关键词
聚对苯二甲酸乙二酯纤维
高取向丝
应力诱导结晶
纤维结构
计算机模拟
纺丝动力学
polyethylene terephthalate fiber
high oriented yarn
stress-induced crystallization
fiber structure
computer modeling
spinning dynamics
