细鳞片石墨膨胀机理的研究

【作者】 李玉峰；

【导师】 黄志宇；

【作者基本信息】 西南石油大学 ， 应用化学， 2006， 硕士

【摘要】 本文主要研究了利用成本低廉的细鳞片石墨制备膨胀石墨的工艺条件及机理。通过正交实验找出了细鳞片石墨制备膨胀石墨的最佳工艺条件，并通过扫描电镜、XRD等手段对原料石墨、可膨胀石墨、膨胀石墨的表面形态及微观结构进行了分析，归纳总结出了细鳞片石墨制备膨胀石墨的机理与大鳞片石墨的膨胀机理具有相似性以及石墨粒度对膨胀石墨微观结构影响的基本规律。本文的研究，对利用细鳞片石墨制备膨胀石墨及相关柔性材料的工业化生产具有指导意义，并对丰富膨胀石墨的理论研究和细鳞片石墨资源的开发利用具有重要的理论价值和现实意义。更多还原

【Abstract】 The process conditions and mechanism of preparing expand graphite by using cheap fine flake graphite as raw material was primarily studied in this paper. The best process condition of synthesizing expand graphite from fine flake graphite was determined via orthogonal experiments. The surface morphology and microstructure of raw graphite, like-expand graphite and expand graphite was characterized and analysed by using SEM, XRD method. The mechanism of preparing expand graphite from fine flake graphite was summarized, the expanding mechanism was similar to big flake graphite’s. The basic discipline of granularity effect on the microstructure of expand graphite was also summed up. The research has instructing meaning on industrial production of expand graphite and correlative flexibility materials from fine flake graphite. It enriches theoretical study of expand graphite, opens up and utilizes the sources of fine flake graphite, and has important theoretical value and realistic significance.更多还原