硅酸盐通报2017，Vol.36Issue(3)：1020-1024,5.
无硫膨胀石墨的制备及性能表征
Preparation and Characterization of Sulphur-free Expanded Graphite
摘要
Abstract
For the high sulfur content of expanded graphite prepared and an unstable expansion volume by the traditional method, natural graphite flake graphite was used as raw material, KMnO4 as oxidant, HClO4 and H3PO4 as intercalating agent, the expansion of expandable graphite by microwave oven and muffle furnace.The orthogonal experiment was used to determine the optimum process conditions.The results show that the optimum reaction conditions are as follows: graphite (g)∶mixed acid (mL)∶potassium permanganate (g) =1∶4.5 mL (3.6 mL perchloric acid∶0.9 mL phosphoric acid)∶0.3, reaction temperature 30 ℃, reaction time 60 min, filtering and washing to pH 5-7, drying at 80 ℃, and expanding in the microwave oven, the expanded graphite has the largest volume of 350 mL/g.关键词
无硫/膨胀石墨/制备/表征Key words
sulphur-free/expanded graphite/preparation/characterization分类
化学化工引用本文复制引用
徐珊,曹宝月,牛成吉..无硫膨胀石墨的制备及性能表征[J].硅酸盐通报,2017,36(3):1020-1024,5.基金项目
陕西省教育厅重点实验室科研计划项目(16JS029) （16JS029）
商洛市科学技术研究发展计划专项(SK2015-20) （SK2015-20）
