| 无硫低灰分膨胀石墨的抗氧化性研究 |
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| 引用本文： | 刘丽来,郝鑫鑫,丁慧贤. 无硫低灰分膨胀石墨的抗氧化性研究[J]. 非金属矿, 2011, 34(3) |
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| 作者姓名： | 刘丽来 郝鑫鑫 丁慧贤 |
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| 作者单位： | 黑龙江科技学院现代分析测试研究中心;中国石油集团大庆石化公司化工一厂; |
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| 基金项目： | 科技部科技人员服务企业行动项目(2009KJB20038) |
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| 摘 要： | 以非高纯混合目天然鳞片石墨、硝酸、高锰酸钾、双氧水为原料,采用化学法经氧化酸化插层、水洗、干燥过程,制备无硫低灰分可膨胀石墨。用磷酸二氢钾饱和溶液、硼酸饱和溶液、磷酸及这3种溶液的混合液作为抗氧化剂进行二次浸渍插层,可制备得到最大膨胀体积为280mL/g的无硫高抗氧化性可膨胀石墨。研究了加入抗氧化剂后膨胀体积变化情况及氧化温度、氧化时间与抗氧化性的关系。结果表明,加入抗氧化剂后的可膨胀石墨具有更高的抗氧化性和膨胀倍数,其中磷酸与磷酸二氢钾混合溶液、磷酸与硼酸混合溶液、磷酸作为抗氧化剂时,膨胀石墨的抗氧化能力较强。
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| 关 键 词： | 插层 膨胀石墨 无硫 抗氧化性 |
Study on Inoxidizability of Sulfur-free and Low Ash Expanded Graphite |
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| Liu Lilai,Hao Xinxin,Ding Huixian. Study on Inoxidizability of Sulfur-free and Low Ash Expanded Graphite[J]. Non-metallic Mines, 2011, 34(3) |
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| Authors: | Liu Lilai Hao Xinxin Ding Huixian |
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| Affiliation: | Liu Lilai1 Hao Xinxin2 Ding Huixian1(1 Modern Analysis and Research Center,Heilongjiang Institute of Science and Technology,Harbin,Heilongjiang 150027,2 Plant in No.1 Chemical Works,Petrochina Daqing Petrochemical Company,Daqing,Heilongjiang 163000) |
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| Abstract: | ulfur-free and low ash expandable graphite was prepared by a chemical method using non-high purity mixture mesh natural flake graphite,concentrated nitric acid,potassium permanganate and hydrogen peroxide as raw materials.When expandable graphite was second intercalated by antioxidant,such as saturated potassium dihydrogen phosphate,saturated boric acid,phosphoric acid and the mixture of the three solutions,sulfur-free and high inoxidizability expandable graphite of 280mL/g could be produced.Relationship be... |
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| Keywords: | intercalation expanded graphite sulfur-free inoxidizability |
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