异形纤维纺丝技术探讨

论述了异形纤维的纺丝技术 ,着重探讨了喷丝孔形状 ,聚合物摩尔质量、纺丝温度、熔体压力 ,喷丝板拉伸倍数 ,冷却条件与纤维异形度之间的关系。指出了不同孔形纺制的异形纤维 ,异形度相差很大 ;随着摩尔质量增加 ,异形度变大 ;温度和压力提高 ,异形度下降 ;纺丝速度影响不大 ;泵供量加大 ,冷却条件加剧 ,可使异形度上升

Study on the spinnig technology of profiled fiber

Spinning technology of profiled fiber was discussed.The relationship between heteromorphou of fiber and spinning hole shape,molar mass of polymer,spinning temperature,melt pressure, draw-down,cooling condition was studied emphatically.And the result shows that heteromorphou are obvious different from each other by using different shape hole, and heteromorphou increases with the growth of molar mass while it decreases with the increasing of temperature and pressure.Spinning rate have little effect on heteromorphou.And heteromorphou increases with the increasing of pumpage and acuteness of cooling condition.