| 碳纤维中的单层石墨物相及其对力学性能的影响 |
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| 引用本文： | 高宇,黄科科,华中,高忠民,李向山. 碳纤维中的单层石墨物相及其对力学性能的影响[J]. 高等学校化学学报, 2007, 28(10): 2014-2017 |
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| 作者姓名： | 高宇 黄科科 华中 高忠民 李向山 |
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| 作者单位： | 吉林大学化学学院,无机合成与制备化学国家重点实验室,长春,130012;吉林师范大学物理学院,四平,136000;吉林大学材料科学与工程学院,长春,130012 |
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| 摘 要： | 依据碳纤维中各种物相的X射线衍射特性, 确认PAN基碳纤维中除了乱层石墨微晶外, 还存在大量的单层六元环C原子层面物相, 建立起两种非完整结晶物相的定量分析方法. 实验结果表明, 随着退火温度由1350 ℃上升到2400 ℃, Tx-3高强型碳纤维中的单层石墨含量由59.6%下降到34.8%, 乱层石墨含量由40.4%上升为65.2%. 与此同时, 碳纤维的拉伸强度则由3.65 GPa下降到2.05 GPa, 而延伸率也由1.04%下降到0.58%. 并对PAN基碳纤维中单层石墨对其力学性能的影响也进行了初步的探讨.
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| 关 键 词： | 碳纤维 乱层石墨 单层石墨 力学性能 |
| 文章编号： | 0251-0790（2007）10-2014-04 |
| 收稿时间： | 2006-12-14 |
| 修稿时间： | 2006-12-14 |
Effect of Monolayer Graphite Phase in Carbon Fiber on the Mechanical Property |
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| GAO Yu,HUANG Ke-Ke,HUA Zhong,GAO Zhong-Min,LI Xiang-Shan. Effect of Monolayer Graphite Phase in Carbon Fiber on the Mechanical Property[J]. Chemical Research In Chinese Universities, 2007, 28(10): 2014-2017 |
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| Authors: | GAO Yu HUANG Ke-Ke HUA Zhong GAO Zhong-Min LI Xiang-Shan |
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| Affiliation: | 1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China ; 2, College of Physics, Jilin Normal University, Siping 136000, China; 3. College of Materials Science and Engineering, Jilin University, Changchun 130012, China |
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| Abstract: | According to the character of the X-ray diffraction patterns of different phases in PAN carbon fiber, it can be affirmed that there still exist plentiful monolayer graphite with six-membered ring, besides multilayer graphite. We also found two kinds of quantative methods for analyzing crystaline phase with defaults, which can be used to study the effect of monolayer graphite in carbon fiber upon its mechanical property. |
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| Keywords: | Carbon fiber Multilayer graphite Monolayer graphite Mechanical property |
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