氧化剂用量对膨胀石墨膨胀容积和微观形貌的影响  

Effect of Oxidant Dosage on Expansion Volume and Micromorphology of Expanded Graphite

作　　者：叶厚理 Ye Houli(The Northern Geological Party of Fujian,Shaowu 354000,China;Shaowu Fujian High Pure Graphite Co.,Ltd.,Shaowu 354000,China)

机构地区：[1]福建省闽北地质大队,福建邵武354000 [2]福建邵武科踏高纯石墨有限公司,福建邵武354000

出　　处：《黑龙江科学》2021年第18期34-36,共3页Heilongjiang Science

摘　　要：采用化学氧化法制备石墨层间化合物(GICs),利用微波法对其进行膨化制备蠕虫状膨胀石墨(EG)。对膨胀石墨的微观形貌进行了表征,对膨胀容积进行了检测,探讨氧化剂用量对膨胀石墨膨胀容积和微观形貌的影响。研究发现:随着氧化剂KMnO_(4)用量的增加,膨胀容积呈现不断增加趋势,膨胀石墨膨胀容积最大时,石墨表层最为粗糙,层间距打开最大,膨胀石墨的孔隙最为发达。In this paper,the graphite intercalation compounds(GICs)were prepared by chemical oxidation,and then expanded by microwave to prepare vermicular expanded graphite(EG).The morphology of expanded graphite was characterized,the expansion volume was tested,and the effect of oxidant dosage on the expansion volume and micromorphology of expanded graphite was discussed in details.There search found that with the increase of oxidizing agent KMnO_(4),expended volume continuously increased.When the expanded volume of graphite reaches the maximum level,surface layer of graphite is the roughest,interlamellar spacing reaches the maximum level,and the hole of expanded graphite is the most developed.

关 键 词：石墨层间化合物 膨胀石墨 氧化剂用量 膨胀容积 微观形貌 

分 类 号：TQ127.11[化学工程—无机化工]