高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (4): 834.

• 研究论文 • 上一篇    下一篇

强度增强泡沫炭的制备、结构与性能

余立琼1,李凯1,刘荣军2,栾志强1,刘江歌1   

  1. 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
  • 收稿日期:2010-06-23 修回日期:2010-12-08 出版日期:2011-04-10 发布日期:2011-03-09
  • 通讯作者: 栾志强 E-mail:luanzhiqiang63@vip.sina.com
  • 基金资助:

    中国博士后科学基金(批准号: 20090451529)资助.

Preparation, Structures and Properties of Strength-enhanced Carbon Foams

YU Li-Qiong1, LI Kai1, LIU Rong-Jun2, LUAN Zhi-Qiang1*, LIU Jiang-Ge1   

  1. 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
  • Received:2010-06-23 Revised:2010-12-08 Online:2011-04-10 Published:2011-03-09
  • Contact: LUAN Zhi-Qiang E-mail:luanzhiqiang63@vip.sina.com
  • Supported by:

    中国博士后科学基金(批准号: 20090451529)资助.

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。

关键词: 泡沫炭, 增强, 浸渍-裂解, 压缩强度, 热导率

Abstract: Pitch-derived carbon foam was prepared from petroleum mesophase pitch,followed by foaming, carbonization and graphitization. The obtained carbon foams were then strength-enhanced through precursor infiltration and pyrolysis(PIP) technique using polycarbosilane(PCS). Their micrographs were investigated by a scanning electron microscope(SEM)and phase identification was detected by powder X-ray diffraction(XRD). The results show that pyrolysis product of PCS was β-SiC and compressive strength of the carbon foam observably enhanced with the increase of PIP times.

Key words: Carbon foam, Strength-enhanced, Precursor infiltration and pyrolysis, Compressive strength, Thermal conductivity

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