| 大直径中间相沥青纤维的不熔化处理 |
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| 引用本文： | 吕永根,查庆芳,吴东,范文浩.大直径中间相沥青纤维的不熔化处理[J].材料研究学报,1995,9(5):450-453. |
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| 作者姓名： | 吕永根 查庆芳 吴东 范文浩 |
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| 作者单位： | 中国科学院山西煤炭化学研究所 |
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| 摘 要： | 用热重分析法研究沥青纤维预氧化过程，确定了氧化反应的最低温度，在低于软化点的温度下预氧化，使不熔化处理由扩散控制变为化学反应控制，有效地改善了氧化均匀性和碳纤维结构，提高了力学性能。
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| 关 键 词： | 中间相 沥青纤维 不熔化 碳纤维 |
| 收稿时间： | 1995-10-25 |
| 修稿时间： | 1995-10-25 |
THE OXIDATIVE STABILIZATION OF LARGE DIAMETER MESOPHASE PITCH FIBER |
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| LU Yonggen,ZHA Qingfang,WU Dong,FAN Wenhao.THE OXIDATIVE STABILIZATION OF LARGE DIAMETER MESOPHASE PITCH FIBER[J].Chinese Journal of Materials Research,1995,9(5):450-453. |
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| Authors: | LU Yonggen ZHA Qingfang WU Dong FAN Wenhao |
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| Affiliation: | Shanxi Institute if Coal Chemistry. Chinese Academy of Sciences |
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| Abstract: | The oxidative stabilization process of mesophase pitch fibers was monitored by thermogravimitry (TGA) measurements at several temperatures, so the lowest temperature, at which the process could be carried out, was determined. It is noted that below the softenning point of pitch, the ratedetermining step of the stabilization process was changed from oxygen diffussion to chemical reaction, the homogenity of oxidized fiber was clarifyed and the structure and the properties of carbon fiber were enhanced. |
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| Keywords: | mesophase pitch fiber stabilization process |
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