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| 论文编号: |
122214O120120012 |
| 第一作者所在部门: |
708组 |
| 中文论文题目: |
Characterization of the nanopore structures of PAN-based carbon fiber precursors by small angle X-ray scattering
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| 英文论文题目: |
Characterization of the nanopore structures of PAN-based carbon fiber precursors by small angle X-ray scattering
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| 论文题目英文: |
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| 作者: |
吴忠华
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| 论文出处: |
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| 刊物名称: |
Chinese Physics C
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| 年: |
2011
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| 卷: |
35 |
| 期: |
9 |
| 页: |
870 |
| 联系作者: |
吴忠华 |
| 收录类别: |
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| 影响因子: |
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| 摘要: |
The nanopore structures in precursors are crucial to the performance of f)AN—based carbon fibers．Four carbon—fiber precursors are prepared．They are bath—fed filaments(A)，water—washing filaments(B)，hot—stretching filaments(C)and drying-densification filaments(D)．Synchrotron radiation small angle X—ray scattering is used to probe and compare the nanopore structures of the four fibers．The nanopore size，discrete volume distribution，nanopore orientation degree along the fiber axis and the porosity are obtained．The results demonstrate that the nanopores are mainly formed in the water—washing stage．During the processes of the subsequent production technologies，the slenderness ratio of nanopores and their orientation degree along the fiber axis increase further and simultaneously．the porosity decreases．These results are helpful for improving the performance of the final carbon fibers． |
| 英文摘要: |
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