| 聚丙烯腈预拉伸丝的热塑拉伸特性 |
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| 引用本文： | 严国良,周筠,张历,朱新军,张玉梅,王华平.聚丙烯腈预拉伸丝的热塑拉伸特性[J].上海纺织科技,2010,38(1). |
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| 作者姓名： | 严国良 周筠 张历 朱新军 张玉梅 王华平 |
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| 作者单位： | 1. 中国石化上海石油化工股份有限公司腈纶事业部,上海,200540
2. 东华大学纤维材料改性国家重点实验室,上海,201620 |
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| 基金项目： | 国家自然科学基金，上海市教育委员会科研创新项目，上海市教委"曙光跟踪计划"项目 |
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| 摘 要： | 通过湿法纺丝制备了不同拉伸倍数的聚丙烯腈预拉伸丝,采用偏光显微镜观察了拉伸倍数对预拉伸丝横截面形态的影响,采用DMA研究了预拉伸丝的塑化温度.在此基础上,采用温度控制的应力-应变仪研究了聚丙烯腈预拉伸丝的断裂应力和断裂伸长与温度、预拉伸倍数的关系,发现聚丙烯腈预拉伸丝在室温下的断裂伸长率小于40%,当二次拉伸的温度超过100℃时,断裂伸长率明显增大;且纤维的断裂应力随着预拉伸倍数的增大而增大.对预拉伸纤维进行二次热塑拉伸,发现纤维强度的增大程度大于水浴拉伸.
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| 关 键 词： | 聚丙烯腈纤维 预拉伸 热塑拉伸 应力-应变 性能 |
Thermal tensile property of pre-drawn acrylic filament |
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| YAN Guo-liang,ZHOU Jun,ZHANG Li,ZHU Xin-jun,ZHANG Yu-mei,WANG Hua-ping.Thermal tensile property of pre-drawn acrylic filament[J].Shanghai Textile Science & Technology,2010,38(1). |
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| Authors: | YAN Guo-liang ZHOU Jun ZHANG Li ZHU Xin-jun ZHANG Yu-mei WANG Hua-ping |
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| Affiliation: | YAN Guo-liang~1,ZHOU Jun~2,ZHANG Li~2,ZHU Xin-jun~2,ZHANG Yu-mei~2,WANG Hua-ping~2 (1.Acrylic Fiber Department,Shanghai Petro-chemical Co.,Ltd.,SINOPC,Shanghai 200540,China) (2.State Key Laboratory of Modification for Polymer , Fiber Materials,Donghua University,Shanghai 201620,China) |
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| Abstract: | Pre-drawn acrylic filaments of different draw ratioes were prepared by use of wet-spinning technology.The cross-section morphology of pre-drawn filaments was observed by polar-light microscope.The ductility temperature was analyzed with DMA.The relationship between the breaking stress and strain of pre-drawn acrylic filament against the temperature and pre-drawn ratio was investigated by temperature-controlled stress-strain meter.It shows that the breaking elongation of pre-drawn acrylic filament is less th... |
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| Keywords: | acrylic flber pre-drawn ductility stress-strain property |
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