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无机材料学报

无机材料学报

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膨胀石墨孔结构的定量研究

王海宁; 郑永平; 康飞宇   

  1. 清华大学材料科学与工程系 北京 100084
  • 收稿日期:2002-03-18 修回日期:2002-04-27 出版日期:2003-05-20 网络出版日期:2003-05-20

Quantitative Analysis of the Pore Structure of Expanded Graphite

WANG Hai-Ning; ZHENG Yong-Ping; KANG Fei-Yu   

  1. Department of Material Science and Engineering; Tsinghua University; Beijing 100084; China
  • Received:2002-03-18 Revised:2002-04-27 Published:2003-05-20 Online:2003-05-20

PDF (PC)

1195

被引次数

44

摘要： 利用压汞法和图像分析法研究了膨胀石墨的孔结构,压汞法可测量膨胀石墨中微米量级以下的孔隙结构参数,对微米量级以上的孔可以利用图像分析法进行测量,膨胀石墨制备参数对膨胀石墨的孔结构有显著影响,其中插层电量越大孔径尺寸越大,孔径分布越宽;膨化温度越高,孔径尺寸越大,孔径分布也越宽。

关键词: 膨胀石墨, 压汞法, 图像分析, 孔结构

Abstract: The characteristics of porous structure of expanded graphite(EG) were studied by using mercury
porosimetry and image analysis. Mercury porosimetry may be used to measure the porous structure parameters of the pores under the micrometer
quantitative level, and the pores over micrometer quantitative level were studied by image analysis. The processing parameters have an
important influence on the porous structure of EG, the more electricity consumption used, the larger pore size and the broader distribution of the
pore size; on the other hand, the higher expanding temperature, the larger pore size and the broader distribution of the pore size.

Key words: expanded graphite, mercury porosimetry, image analysis, pore structure

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