微波法制备无硫膨胀石墨结构特征研究  

The Preparation and Structure Property of Sulfur-free Expanded Graphite by Microwave

作　　者：杜城[1] 李珍[1] 冯力[1] 吕净宇[1] 王增奎[1] 

机构地区：[1]中国地质大学材料科学与化学工程学院教育部纳米矿物材料及应用工程研究中心,湖北武汉430074

出　　处：《火工品》2009年第4期9-12,共4页Initiators & Pyrotechnics

基　　金：黑龙江国土资源厅项目(2007026048)资助

摘　　要：以黑龙江萝北石墨为原料,采用H_3PO_4和CH_3COOH插层石墨,微波膨化制备了无硫膨胀石墨。采用IP、XRD和SEM测试技术进行结构表征,并对比不同插层剂制备的膨胀石墨微波膨化的膨胀效果与结构差异。研究表明:对于磷酸法制备的膨胀石墨,其微波膨胀效果与结构完整性均优于冰乙酸法制备的膨胀石墨,磷酸法制备的膨胀石墨的膨胀倍率可达到282mL·g^(-1)。Based on the raw materials found in Luobei （Heilongjiang province）, the sulfur-free expanded graphite were intercalated by prepared H3PO4 or CH3COOH and then obtained via microwave method. IR, X..ray diffraction and SEM analysis techniques were used to identify their structure. The differences between structure and microwave expanded property of sulfur-free expanded graphite prepared under various intercalate reagent was carefully studied. The results showed that the expanded graphite fabricated by H3PO4 method owned better microwave expanded property and higher structure integrity than the one fabricated by CH3COOH method. The former one exhibited an excellent expansion volume, corresponding to 282mL·g^-1.

关 键 词：膨胀石墨 微波 无硫 结构 

分 类 号：TJ450.4[兵器科学与技术—火炮、自动武器与弹药工程]