在不改变石墨原始结构与成分的基础上,利用冲击波对可膨胀石墨进行爆轰,收集爆轰灰,进行X射线衍射、SEM的测量分析以及BET法测定比表面积.结果表明,可膨胀石墨经过爆轰后,得到了颗粒大小为1μm～10μm的石墨粉,比表面积由8.096 m2/g增大至47.48 m2/g,并且孔隙变得更为均匀,常规研磨设备是无法达到这种效果的.为石墨的细化提供了一种更为简便快捷而又节省能源的方法.
A method to produce graphite micro-powder by detonation was provided and the detonated powder was characterized by XRD, SEM and nitrogen adsorption. Results indicated that the particle size of the detonated expandable graphite powder were in the range of 1 to 10 μm, the BET specific surface area increased from 8. 096 to 47.48 m2/g,while the crystal parameters and flake-like morphologies changed little. Detonation offered a more convenient, quick and energy-saving method to make micrometer-sized graphite powder.
参考文献
| [1] | Chen Shi-zhu;Li Wen-xian;Yin Zhi-min .Research on working principle of a planetary high-energy ball mill[J].Mining and Metallurgical Engineering,1997,17(04):62-65. |
| [2] | 李世强,杨乐民,周岩,杨立见.高能球磨法制备石英纳米粉的可行性探讨[J].哈尔滨师范大学自然科学学报,2005(03):42-45. |
| [3] | Zhang Geng-chao;Ying Fu-qiang .Actualities and progressing trends of superfine crushing techniques[J].China Power Science and Technology,2003,9(02):44-48. |
| [4] | 彭伟,侯书军,秦志英.振动磨机技术研究的新进展[J].矿山机械,2005(07):25-26. |
| [5] | 杜高翔,郑水林,李杨,四季春.用搅拌磨制备超细粉体的试验研究[J].矿冶,2003(04):54-57. |
| [6] | Pierson H O.Handbook of Carbon,Graphite,Diamond and Fullerenes[M].William Andrew Publishing,1993:33-36. |
| [7] | Guan Hua;Pan Gong-pei;Wang Guang et al.Study on the millimeter attenuation performance of the expanded graphite in three-dimensional space[J].Energetic Material,2004,12(05):273-276. |
| [8] | 魏兴海,张金喜,史景利,郭全贵,要立中.无硫高倍膨胀石墨的制备及影响因素探讨[J].新型炭材料,2004(01):45-48. |
| [9] | Burchell T D.CarbonMaterials for Advanced Technologies[M].Elsevier,1999:4-8. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%