膨胀石墨吸附能力的表征  

Characterization of the expanded graphite's sorption capacity

作　　者：刘成宝[1] 陈志刚[2] 刘曦[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]江苏工业学院,江苏常州213016

出　　处：《兵器材料科学与工程》2008年第2期40-43,共4页Ordnance Material Science and Engineering

基　　金：江苏省自然科学基金(BK2003027);中石化 X504006

摘　　要：通过对所选膨胀石墨及可膨胀石墨的 XRD、SEM 以及 DTA 的测试分析,发现膨胀石墨内部孔结构的丰富与否与质量损失率的变化规律是趋于一致的,而与膨胀体积的变化规律不尽相同;吸附实验表明:膨胀石墨在针对表面吸附油进行处理时,是缠绕空间起主导作用,而在针对含油污水中小颗粒乳化油的处理时,则是内部孔结构起主导作用:通过对膨胀体积和质量损失率的控制,可以实现对缠绕空间和内部孔结构的控制,从而也达到了对表面浮油和小颗粒乳化油分工吸附的目的。XRD, SEM and DTA were selected to analyze the expanded graphite and expandable graphite. The result was that the changing trend of the internal pore structure was consistent with the mass loss, but not with the expanded volume. To absorb the large suspended oil, the wrapping space played a dominate role; while to absorb the small emulsified oil particles, the internal pore structure was the dominant factor. By controlling the expanded volume and the mass loss, the wrapping space and the internal pore structure could be controlled, and the large suspended oil and the small emulsified oil particles could be adsorbed separately.

关 键 词：膨胀石墨 表征 膨胀体积 质量损失率 

分 类 号：TQ165[化学工程—高温制品工业]