牵伸倍数对烟用聚丙烯丝束性能的影响  

Effect of Draw-ratio on the Properties of Polypropylene Tow for Cigarette Filter

作　　者：陈水平 黄卫东[2] 李风英[2] 牛润杰[2] 

机构地区：[1]洛阳石化总厂宏达化纤厂,河南省洛阳市熙春西路11号471002 [2]中国烟草总公司郑州烟草研究院,郑州市二七路88号450000

出　　处：《烟草科技》2003年第6期13-16,共4页Tobacco Science & Technology

摘　　要：研究了喷丝板和牵伸倍数对烟用聚丙烯丝束性能的影响。实验结果表明 :用喷丝孔截面积小的B喷丝板纺制的纤维结晶度高、断裂比功小、切割性能好、成棒率高 ,更适合于烟用聚丙烯丝束的生产。经热处理后的聚丙烯丝束的纤维性能在后牵伸倍数为 2 .0前后变化较大 ,在后牵伸倍数大于 2 .0时 ,随后牵伸倍数的增加断裂比功减小 ,声速取向增大 。The effects of spinneret and draw-ratio on the properties of polypropylene(PP) cigarette tow were studied. The results showed that PP fibers spun by the spinneret with smaller orifices had higher crystallinity, smaller breaking-power per dtex and better cutting property. After heat treatment, the properties of PP fibers changed significantly when post-draw-ratio was 2.0∶1 or so. When post-draw-ratio was over 2.0∶1, the breaking-power per dtex decreased and the sound-velocity orientation increased with the increase of post-draw-ratio.

关 键 词：烟用 聚丙烯丝束 喷丝板 牵伸倍数 纤维性能 断裂比功 结晶度 

分 类 号：TS452[农业科学—烟草工业]