| 高强高模碳纤维用高等规聚丙烯腈在预氧化过程中成环性能的研究 |
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| 引用本文： | 赵茵茵,许志献,代永强,薛立伟,金日光,毛立新. 高强高模碳纤维用高等规聚丙烯腈在预氧化过程中成环性能的研究[J]. 化工新型材料, 2009, 37(11) |
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| 作者姓名： | 赵茵茵 许志献 代永强 薛立伟 金日光 毛立新 |
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| 作者单位： | 北京化工大学化工资源有效利用国家重点实验室,北京,100029;北京化工大学化工资源有效利用国家重点实验室,北京,100029;安阳师范学院化学化工学院,安阳,455000 |
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| 摘 要： | 高等规聚丙烯腈可作高强高模碳纤维的原丝,但对其预氧化过程的研究很少.为了对比,采用两种样品:高等规聚丙烯腈(iso-PAN)和无规聚丙烯腈(at-PAN),并用XRD图考察了两种PAN从线形结构过渡到环型结构的变化.为了定量地考察它们的差别,运用了JRG群子统计理论,发现随温度升高,高等规PAN比无规PAN成环越容易,环化程度高,通过计算得知PAN高等规PAN的活化能低于无规PAN,这为制造高强高模碳纤维提供了新的前提材料.
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| 关 键 词： | 高等规PAN 预氧化 环化反应 群子统计力学 XRD |
Study on high isotactic polyacrylonitrile fiber in preoxidation process |
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| Zhao Yinyin,Xu Zhixian,Dai Yongqiang,Xue Liwei,Jin Riguang,Mao Lixin. Study on high isotactic polyacrylonitrile fiber in preoxidation process[J]. New Chemical Materials, 2009, 37(11) |
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| Authors: | Zhao Yinyin Xu Zhixian Dai Yongqiang Xue Liwei Jin Riguang Mao Lixin |
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| Abstract: | High Isotactic polyacrylonitrile can be used to prepare high strength and high module carbon fiber. In this paper, chain configuration of high isotactie Polyacrylonitrile (iso-PAN) and atctism polyacrylonitrile (at-PAN)is stud-ied via x-ray diffraction (XRD), which was transformed from line in to ring in preoxidation process. Sub-cluster statistical theory was used to quantitative analysis the difference with the increasing of temperature, the form of iso-PAN's ring be-came easier. Activation energy was calculated, and proved that iso-PAN was easier to reaction during the low temperature. |
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| Keywords: | XRD high Isotactic polyacrylonitrile sub-cluster statistical theory preoxidation XRD |
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