膨胀石墨的工艺优化及性能研究  

Process optimization and performance study of expanded graphite

作　　者：赵彦亮[1] 刘菲[1] 谭俊华[1] 朱开金[1] 王文霞[2] 

机构地区：[1]太原工业学院材料工程系,山西太原030008 [2]长治清华机械厂,山西长治046012

出　　处：《山西化工》2012年第6期1-4,共4页Shanxi Chemical Industry

摘　　要：利用混酸法与单酸法制备膨胀石墨,通过XRD、FESEM对2种制备方法进行比较并优化工艺条件,对吸附性能进行表征。实验得出,混酸法制备膨胀石墨的最佳工艺为:原料质量配比m(H2SO4)∶m(HNO3)∶m(石墨)=3∶1∶1,m(石墨)∶m(高锰酸钾)=1.00∶0.15,膨化温度为900℃;与单酸法相比,混酸法制备的膨胀石墨膨胀效果明显,吸附性能好,产物结构较规整。Expanded graphite was prepared by mixed acid method and single acid method. The expanded graphite were characterized by XRD and FESEM and the process conditions were optimized. The adsorption performances of expanded graphite by two methods were compared. The optimum process of expanded graphite by mixed acid method is the mass ratio of raw material of m（ H2SO4 ） ： m（ HNO3 ） ： m （graphite） = 3： 1 ： 1, m （Graphite） ： m （ K2 MnO4 ） = 1.00：0.15, swelling temperature T = 900 ~C. The results showed that expansion effect and adsorption performance of expanded graphite prepared by mixed acid method is good, and it has a regular structure.

关 键 词：单酸法 混酸法 膨胀石墨 稀土钆膨胀石墨层间化合物 

分 类 号：TB332[一般工业技术—材料科学与工程] TB333