Abstract Exfoliated graphite was obtained by thermal treatment at temperatures of 600, 800, 1000 °C of expandable graphite based on graphite bisulfate of I, II, III and IV stages. The aim of this work is to study the influence of stage number and exfoliation temperature on macrostructure and microstructure of exfoliated graphite. The delamination of expandable graphite particle is observed with decreasing stage number of initial graphite bisulfate. The obtaining of exfoliated graphite is accompanied by formation of graphite cellular structure. The dependence of crystallite size along c axis of exfoliated graphite on stage number and exfoliation temperature was investigated. Crystallite size is reduced both with decreasing stage number of initial graphite bisulfate and with increasing exfoliation temperature.

中文翻译：

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插层和剥落条件对剥落石墨宏观结构和微观结构的影响

摘要 以Ⅰ、Ⅱ、Ⅲ、Ⅳ级硫酸氢石墨为基础，对可膨胀石墨进行600、800、1000℃热处理，得到薄片化石墨。本工作的目的是研究阶段数和剥落温度对剥落石墨宏观结构和微观结构的影响。随着初始石墨硫酸氢盐级数的减少，观察到可膨胀石墨颗粒的分层。膨胀石墨的获得伴随着石墨蜂窝结构的形成。研究了剥落石墨沿 c 轴的晶粒尺寸对阶段数和剥落温度的依赖性。微晶尺寸随着初始硫酸氢石墨的阶段数的减少和剥离温度的升高而减小。