【摘要】 研究了一种以天然石墨和硫酸、硝酸的混酸为原料 ,高锰酸钾为氧化剂 ,三氯化铁为插入剂制备高膨胀容积可膨胀石墨的新方法。其最佳参数为 :石墨与高锰酸钾 ,三氯化铁 ,硫酸和硝酸的混酸的质量比为 1.0∶0 .8∶0 .2∶3.0 ,反应时间为 0 .5h ,反应温度为 2 5℃更多还原

【Abstract】 A new method for preparing expansible graphite was studied. The expansible graphite with high expanded volume was prepared in mixed acids solution with potassium permanganate as oxidizing agent and ferric trichloride as inserting agent. The optimum conditions were obtained with the parameters as follows: the weight ratio of graphite, potassium permanganate, ferric trichloride and the mixed acid is 1.0∶0.8∶0.2∶3.0, the reaction time is 0.5 h and the reaction temperature is 25 ℃.更多还原