| 残余溶剂DMSO对PAN纤维结构及热性能的影响 |
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| 引用本文： | 李常清,徐梁华,王晓玲,刘淑金,曹维宇,陈宏卓. 残余溶剂DMSO对PAN纤维结构及热性能的影响[J]. 高分子材料科学与工程, 2003, 19(4): 89-91 |
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| 作者姓名： | 李常清 徐梁华 王晓玲 刘淑金 曹维宇 陈宏卓 |
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| 作者单位： | 1. 北京化工大学炭纤维及复合材料研究所,北京,100029;北京大学地球与空间科学学院,北京,100871
2. 北京化工大学炭纤维及复合材料研究所,北京,100029 |
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| 摘 要： | 在PAN／DMSO湿法纺丝体系中，改变水洗条件，得到含有不同DMSO含量的聚丙烯腈原丝．通过先学显微镜、X射线衍射、DSC和TG等分析测试手段，研究了残余溶剂二甲基亚砜(DMSO)对PAN纤维结构及热性能的影响。在纤维低温热处理过程中，原丝中痕量DMSO的存在，可以改变纤维的截面形状、破坏纤维的晶态结构，并使纤维的热稳定性降低。
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| 关 键 词： | 残余溶剂 DMSO PAN纤维 结构 热性能 聚丙烯腈纤维 |
| 文章编号： | 1000-7555(2003)04-0089-03 |
| 修稿时间： | 2001-08-01 |
EFFECT OF THE REMAINS OF DIMETHYL SULFOXIDE ON THE STRUCTURE AND THERMAL PROPERTIES OF PAN PRECURSOR |
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| LI Chang-qing ,,XU Liang-huang ,WANG Xiao-ling ,LIU Shu-jin ,CAO Wei-yu ,CHEN Hong-zhuo. EFFECT OF THE REMAINS OF DIMETHYL SULFOXIDE ON THE STRUCTURE AND THERMAL PROPERTIES OF PAN PRECURSOR[J]. Polymer Materials Science & Engineering, 2003, 19(4): 89-91 |
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| Authors: | LI Chang-qing XU Liang-huang WANG Xiao-ling LIU Shu-jin CAO Wei-yu CHEN Hong-zhuo |
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| Affiliation: | LI Chang-qing 1,2,XU Liang-huang 1,WANG Xiao-ling 1,LIU Shu-jin 1,CAO Wei-yu 1,CHEN Hong-zhuo 1 |
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| Abstract: | PAN precursor containing of different amount of DMSO was obtained by altering water-washing technology in PAN/DMSO wet spinning. It was shown that the remains of DMSO had effect on the structure and thermol properties of PAN fiber, which were determined by optical microscope, X-ray diffractometer, differential scanning calorimeter and thermol gravity. In the process of low-heat-treatment, the trace remains of DMSO in PAN precursor can change the cross section of the fiber, damaging the crystalline structure, decreasing the heat stability of fiber. |
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| Keywords: | PAN precursor trace DMSO structure and thermal properties |
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