摘要
根据聚合物熔融纺丝的基本原理,建立了一步法POY(预取向丝)/FDY(全拉伸丝)涤纶异收缩混纤丝熔融纺丝的数学模型,分别对POY和FDY的直径、张力、速度、温度、双折射率、结晶度在纺程上的变化进行了数学模拟.结果发现,在纺程上POY的直径、张力、温度、速度变化比FDY大;POY在纺程上可以形成良好的结晶和取向,其中结晶度可达到16%,双折射率可达到0.085,而FDY在纺程上的结晶和取向可以忽略不计.研究结果可为一步法POY/FDY涤纶异收缩混纤丝的实际生产提供理论指导.
According to the basic principle of polymer melt-spinning, the mathematical model of melt- spinning of one-step process POY （pre-oriented yarn） / FDY （fully draw yarn） polyester combined yarn was established and the evolutions of the diameter, tension, velocity, temperature, birefringence and crystallinity of POY and FDY on the spinning process were simulated. It was founded that the diameter, tension, temperature and velocity of POY changed more violently than those of FDY. POY can form a good degree of crystallinity and orientation which can be up to 16% and 0. 085 separately, while those of FDY can be neglected. The studies can provide theoretical guidance to the practical production of one- step process POY/FDY polyester combined yarn.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期660-664,共5页
Journal of Donghua University(Natural Science)
基金
江苏省科技成果转化专项资金资助项目(BA2009046)
关键词
一步法
异收缩混纤丝
熔融纺丝
模拟
one-step process
differential shrinkage combined yarn
melt-spinning~ simulation
