摘要
增塑纺丝是制备聚丙烯腈纤维的一种新型工艺,通常采用水溶性离子液体——1-丁基-3-甲基咪唑氯盐([Bmim]Cl)作为增塑剂。纤维性能受到纺丝速度、甬道温度、喷丝板孔径、喷丝板孔数及水浴牵伸倍数等纺丝工艺的影响,本文将从纺丝速度及水浴牵伸倍数角度分析其对纤维性能的影响。实验结果表明,随着纺丝速度的增加,纤维初始模量及断裂强度呈现一个先增加、后降低的趋势;随着牵伸倍数的增加,纤维力学性能逐渐优化,但存在一个最优值。
Plasticized spinning is a new process for preparing polyacrylonitrile f ibers. Usually, a water-soluble ionic liquid, 1-butyl-3-methylimidazolium chloride ([Bmim]Cl), is used as a plasticizer.Fiber properties are affected by spinning speed, ramp temperature, spinneret hole diameter, number of spinneret holes, water bath drafting ratio, etc. In this paper, the effect on f iber properties will be analyzed from the perspective of spinning speed and water bath draw ratio.The experimental results showed that with the increase of spinning speed, the initial modulus and fracture strength of the f iber showed a trend of increasing f irst and then decreasing. As the draw ratio was increased, the f iber mechanical properties were gradually optimized, but there existed an optimal value.
出处
《科技资讯》
2018年第27期1-5,共5页
Science & Technology Information
基金
2018年镇江市重点研发计划-产业前瞻与共性关键技术项目(项目编号:GY2018028)
江苏开放大学江苏城市职业学院"十三五"2016年度科研规划课题(项目编号:16SSW-Q-019)
江苏省现代教育科技研究2018年重点课题(项目编号:2018-R-63528)
江苏省2018年高校哲学社会科学研究基金项目(项目编号:2018SJA1110)
关键词
纺丝速度
水浴牵伸
聚丙烯腈
性能
Spinning speed
Water bath drawing
Polyacrylonitrile
Performance
