腈纶NaSCN一步法生产中调整喷丝头负拉伸率的研究

Study on Adjusting Spinneret Negative Draw Ratio

采用硫氰酸钠为溶剂,湿纺一步法工艺生产腈纶,探讨了喷丝头负拉伸率对纤维成形的影响。工业化试验表明:当喷丝头负拉伸率为-73％时,纤维可纺性达到最佳状态。

Using NaSCN as solvent,acrylic fiber was produced by one-step wet spinning process. The effect of spinneret negative draw ratio on fiber formation was discussed. The practical experiments showed that fiber spinnability was optimized when spinneret negative draw ratio was -73%.