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| 凝固浴中加入碳纳米管对ＰＡＮ碳纤维原丝结构性能的影响 | |
| 引用本文： | 王少军 沈新元,吉亚丽,杨庆,董炎明. 凝固浴中加入碳纳米管对ＰＡＮ碳纤维原丝结构性能的影响[J]. 南京信息工程大学学报, 2009, 1(2): 142-145 |
| 作者姓名： | 王少军 沈新元 吉亚丽 杨庆 董炎明 |
| 作者单位： | 1. 东华大学材料科学与工程学院,上海,201620 2. 东华大学材料科学与工程学院,上海,201620;纤维材料改性国家重点实验室,上海,201620 3. 厦门大学材料学院,厦门,361005 |
| 基金项目： | 资助项目国家自然科学基金，国家973计划，国家自然科学重点基金(，上海市重大基础研究，(20020255010)高等学校学科创新引智计划 |
| 摘 要： | 在凝固浴中加入经酸处理的多壁碳纳米管（MWNTs），制得多壁碳纳米管-聚丙烯腈纤维，并对其进行了表征．结果表明：在凝固浴中加入酸处理MWNTs，对填补PAN碳纤维原丝内部的微孔有明显的作用；对PAN原丝的结晶结构几乎没有影响；降低了原丝的晶区取向；提高了原丝的断裂强度、断裂伸长率及拉伸韧度． |
| 关 键 词： | 湿法纺丝 聚丙烯腈 碳纤维原丝 碳纳米管 |
| 收稿时间： | 2009-07-06 |
The effects of carbon nano-tubes dispersed coagulation bath on the structure and performance of PAN based carbon fiber precursors |
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| Affiliation: | WANG Shaojun, SHEN Xinyuan, JI Yali, YANG Qing, DONG Yanming( 1. College of Materials Science and Engineering, Donghua University,Shanghai 200051; 2. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Shanghai 201620 ; 3. College of Materials,Xiamen University, Xiamen 361005) |
| Abstract: | The multi-walled carbon nano-tubes/polyacrylonitrile （MWNTs/PAN） composite fibers were prepared via wet-spinning from a novel coagulation bath containing acid treated MWNTs dispersed in the DMSO ／H2O solution, which is represented in this paper. The results shows that the addition of acid treated MWNTs to the coagulation bath is in favor of filling-up the inner micropores of the carbon fiber precursor; but it has no impact on the crystallization structure of the precursor ; and it decreases the orientation of crystal areas ; ultimately, it improves the mechanical properties, including breaking strength, breaking elongation and tensile toughness of the precursor. |
| Keywords: | wet-spinning carbon fiber precursor carbon nano-tubes |
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