| PAN基碳纤维原丝的高锰酸钾改性(英文) |
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| 引用本文： | 刘水平,谭连江,潘鼎,陈彦模. PAN基碳纤维原丝的高锰酸钾改性(英文)[J]. 材料工程, 2009, 0(Z2) |
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| 作者姓名： | 刘水平 谭连江 潘鼎 陈彦模 |
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| 作者单位： | 东华大学纤维材料改性国家重点实验室东华大学材料科学与工程学院; |
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| 基金项目： | supported by grants fromthe National Basic Research Program(973 Program)(2006CB606505); the Shanghai Leading Academic Discipline Project(B603); the Shanghai Fundamental Theory Program(07DJ14002) |
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| 摘 要： | 本文使用质量浓度为5%的高锰酸钾溶液对PAN基碳纤维原丝进行不同时间的改性,并利用不同的测试手段对经过改性的原丝进行了表征。相比未经改性的原丝,改性原丝具有较低的拉伸强度,在相当于预氧化(稳定化)温度范围的条件下释放的热量较少。这些实验结果表明,高锰酸钾溶液可以将高锰酸根离子引入PAN原丝内部,使其与丙烯腈单元发生反应,从而有利于纤维的氧化的环化反应。此外,本文还讨论了改性时间对原丝性能的影响。
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| 关 键 词： | PAN原丝 高锰酸钾 改性 氧化 环化 |
Modification of PAN Carbon Fiber Precursor Using Potassium Permanganate |
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| LIU Shui-ping,TAN Lian-jiang,PAN Ding,CHEN Yan-mo State Key Laboratory for Modification of Chemical Fibers , Polymer Materials,College of Materials Science , Engineering,Donghua University,Shanghai ,China. Modification of PAN Carbon Fiber Precursor Using Potassium Permanganate[J]. Journal of Materials Engineering, 2009, 0(Z2) |
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| Authors: | LIU Shui-ping TAN Lian-jiang PAN Ding CHEN Yan-mo State Key Laboratory for Modification of Chemical Fibers Polymer Materials College of Materials Science Engineering Donghua University Shanghai China |
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| Affiliation: | LIU Shui-ping,TAN Lian-jiang,PAN Ding,CHEN Yan-mo State Key Laboratory for Modification of Chemical Fibers , Polymer Materials,College of Materials Science , Engineering,Donghua University,Shanghai 201620,China |
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| Abstract: | PAN carbon fiber precursors were modified for different periods of time using potassium permanganate solution with the concentration of 5% by weight.A variety of testing methods were employed to characterize the modified fibers.Compared with the unmodified fiber,modified fibers had lower tenacity,released less heat and deformed less in the temperature range equivalent to stabilization.These experimental results indicated that the potassium permanganate solution could bring permanganate ions into PAN precurs... |
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| Keywords: | PAN precursor potassium permanganate chemical modification oxidation cyclization |
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