化学氧化法制备膨胀石墨的研究进展  

Advances in the preparation of expanded graphite by chemical oxidation

作　　者：李彦 祗明亮 尤国有 岳耿 朱群志 LI Yan;DI Ming-liang;YOU Guo-you;YUE Geng;ZHU Qun-zhi(College of Energy and Mechanical Engineering,Shanghai University of Electric Power,Shanghai 200090,China)

机构地区：[1]上海电力大学能源与机械工程学院,上海200090

出　　处：《应用化工》2020年第11期2864-2870,共7页Applied Chemical Industry

基　　金：国家自然科学基金项目(51576119);上海市科学技术委员会项目(18020501000)。

摘　　要：简述了膨胀石墨的膨胀机理及孔隙结构,重点介绍了在化学氧化过程中石墨纯度和粒径、插层方式、水洗程度、膨化方式、膨化温度等因素对膨胀容积的影响,并结合文献中的相关研究成果,揭示了近年来氧化石墨的演变过程及遵循思路,提出了未来的研究方向,探讨了工艺技术条件对其结构性能的影响以及深层次的优化,为制备具有优良性能的石墨产品奠定基础。This paper briefly described the expanded graphite expansion mechanism and pore structure,mainly introduced in the process of chemical oxidation degree of graphite purity and particle size,intercalation washing process,effect of swelling temperature and other factors on expansion volume,and based on related research results in the literature,reveals the evolution process of graphite oxide in recent years,and follow the train of thought,puts forward the future direction of the research is to investigate the technique conditions affect the performance of the structure and the optimization of deep,lay a foundation for preparation has good properties of graphite products.

关 键 词：膨胀石墨 制备工艺 综述 氧化插层 膨胀容积 

分 类 号：TQ127.1[化学工程—无机化工]