| 高导热中间相沥青基炭纤维的微观结构分析 |
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| 引用本文： | 袁观明,李轩科,董志军,周婧,崔正威,从野,张中伟,王俊山.高导热中间相沥青基炭纤维的微观结构分析[J].功能材料,2011,42(10). |
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| 作者姓名： | 袁观明 李轩科 董志军 周婧 崔正威 从野 张中伟 王俊山 |
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| 作者单位： | 1. 武汉科技大学化学工程与技术学院,湖北武汉,430081
2. 航天材料及工艺研究所,北京,100076 |
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| 基金项目： | 国家自然科学基金重大研究计划重点资助项目(91016003); 武汉科技大学科学基金资助项目(2008TD06) |
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| 摘 要： | 中间相沥青基炭纤维具有低电阻、高导热特性,是目前最具发展前景的功能型导热、散热材料,但是国内对其微观结构和性能的研究报道较少。对国外高导热中间相沥青基炭纤维的微观结构和形貌进行了分析,同时将实验室研发的不同截面形状中间相沥青基炭纤维进行比较。研究结果表明中间相沥青基炭纤维具有的高导热特性源于其内部三维有序堆积的类石墨层状结构和较为完整生长的石墨晶体。热处理温度越高,其类石墨晶体生长越完善,层片取向程度越高。与圆形截面辐射状结构中间相沥青炭纤维相比,带状截面炭纤维有效解决了劈裂问题,其石墨片层间距为0.337nm,层片堆积高度达到26.77nm,轴向热导率高于800W/（m.K）。
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| 关 键 词： | 高导热 中间相沥青基炭纤维 微观结构 |
Microstructure analyses of mesophase pitch-based carbon fibers with high thermal conductivity |
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| YUAN Guan-ming,LI Xuan-ke,DONG Zhi-jun,ZHOU Jing,CUI Zheng-wei,CONG Ye,ZHANG Zhong-wei,WANG Jun-shan.Microstructure analyses of mesophase pitch-based carbon fibers with high thermal conductivity[J].Journal of Functional Materials,2011,42(10). |
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| Authors: | YUAN Guan-ming LI Xuan-ke DONG Zhi-jun ZHOU Jing CUI Zheng-wei CONG Ye ZHANG Zhong-wei WANG Jun-shan |
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| Affiliation: | YUAN Guan-ming1,LI Xuan-ke1,DONG Zhi-jun1,ZHOU Jing1,CUI Zheng-wei1,CONG Ye1,ZHANG Zhong-wei2,WANG Jun-shan2(1.School of Chemical Engineering & Technology,Wuhan University of Science and Technology,Wuhan 430081,China,2.Aerospace Research Institute of Materials and Processing Technology,Beijing 100076,China) |
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| Abstract: | Mesophase pitch-based carbon fibers are most attractive candidates for thermally conductive materials and heat dissipation materials due to their low electrical resistivity and high thermal conductivity,but there are few research reports on their microstructrues and properties in our country.The microstructure and morphology of high conductive mesophase pith-based carbon fibers prepared by foreign country were analyzed in contrast with those of mesophase pitch-based carbon fibers with different transverse s... |
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| Keywords: | high thermal conductivity mesophase pith-based carbon fiber microstructure |
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