| 强度增强泡沫炭的制备、结构与性能 |
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| 引用本文： | 余立琼,李凯,刘荣军,栾志强,刘江歌. 强度增强泡沫炭的制备、结构与性能[J]. 高等学校化学学报, 2011, 32(4): 834-838 |
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| 作者姓名： | 余立琼 李凯 刘荣军 栾志强 刘江歌 |
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| 作者单位： | 1. 防化研究院, 北京 100191; 2. 国防科技大学宇航材料工程学院, 国防科技重点实验室, 长沙 410073 |
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| 基金项目： | 中国博士后科学基金(批准号:20090451529)资助 |
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| 摘 要： | 本文采用石油系中间相沥青为原料，通过发泡、炭化和石墨化制备了沥青基泡沫炭，用聚碳硅烷（PCS）浸渍-裂解（PIP）工艺增强泡沫炭的机械强度。采用扫描电子显微镜（SEM）分析其微观结构, X射线衍射（XRD）分析确认PCS的裂解产物为β-SiC。经过三次PIP工艺，压缩强度测试表明泡沫炭的压缩强度随PIP次数的增加而显著提高。
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| 关 键 词： | 泡沫炭 增强 浸渍－裂解 压缩强度 热导率 |
| 收稿时间： | 2010-06-23 |
Preparation,Structures and Properties of Strength-enhanced Carbon Foams |
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| YU Li-Qiong,LI Kai,LIU Rong-Jun,LUAN Zhi-Qiang,LIU Jiang-Ge. Preparation,Structures and Properties of Strength-enhanced Carbon Foams[J]. Chemical Research In Chinese Universities, 2011, 32(4): 834-838 |
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| Authors: | YU Li-Qiong LI Kai LIU Rong-Jun LUAN Zhi-Qiang LIU Jiang-Ge |
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| Affiliation: | 1. Research Institute of Chemical Defense, Beijing 100191, China;;2. Key Laboratory of National Defense Technology, College of Aerospace & Materials Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | Pitch-derived carbon foams were prepared with petroleum mesophase pitch by the processes of foaming,carbonization and graphitization.The obtained carbon foams were treated with precursor infiltration and pyrolysis(PIP) technics using polycarbosilane(PCS) aiming to reinforce the mechanical strength of the foams.Scanning electron microscope(SEM) micrographs displayed that strength-enhanced carbon foams maintained integrally the original structures and the deposit lamella could be observed on the inner wall.Th... |
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| Keywords: | Carbon foam Strength-enhancement Precursor infiltration and pyrolysis Compressive strength Thermal conductivity |
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