| 氮气中环化热处理对聚丙烯腈纤维不熔化的影响 |
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| 引用本文： | 宋云鹏,吕永根,秦显营,杨常玲. 氮气中环化热处理对聚丙烯腈纤维不熔化的影响[J]. 材料导报, 2009, 23(18) |
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| 作者姓名： | 宋云鹏 吕永根 秦显营 杨常玲 |
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| 作者单位： | 1. 东华大学材料科学与工程学院国家重点实验室,上海,201620
2. 东华大学化学化工与生物工程学院,上海,201620 |
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| 基金项目： | 国家973资助项目，国家自然科学基金重点项目 |
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| 摘 要： | 在聚丙烯腈(PAN)纤维不熔化过程中,由于受到热作用,分子链沿纤维轴向发生热收缩,分子解取向.在不熔化过程中抑制纤维的收缩,使分子保持较高的取向度,有利于得到具有较高微晶取向度的碳纤维.研究了聚丙烯腈纤维在氮气气氛下热处理后的化学结构变化,考察了氮气处理对纤维热收缩性的抑制.
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| 关 键 词： | 聚丙烯腈纤维 预氧化 热收缩 碳纤维 |
Research on Heat Treatment in Nitrogen Gas during the Stabilization of Polyacrylonitrile Fibers |
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| SONG Yunpeng,LU Yonggen,QIN Xianying,YANG Changling. Research on Heat Treatment in Nitrogen Gas during the Stabilization of Polyacrylonitrile Fibers[J]. Materials Review, 2009, 23(18) |
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| Authors: | SONG Yunpeng LU Yonggen QIN Xianying YANG Changling |
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| Affiliation: | SONG Yunpeng1,LU Yonggen1,QIN Xianying1,YANG Changling2(1 State Key Laboratory for Modification of Chemical Fibers , Polymer Materials,Donghua University,Shanghai 201620,2 College of Chemistry,Chemical Engineering , Biotechnology,Shanghai 201620) |
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| Abstract: | During the stabilization step,the polyacrylonitrile(PAN) fiber shrinks as well as disorients in the direction of fiber axis.So it is important to control the shrinkage of PAN fiber in air in order to get high performance carbon fiber.The chemical structure changes and the thermal shrinkage of PAN fiber are studied when it is first treated in nitrogen gas. |
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| Keywords: | PAN fiber stabilization thermal shrinkage carbon fiber |
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