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| 表面包覆Al(OH)3改性石墨的研究 | |
| 引用本文： | 王周福,庞业华,孙加林,汪厚植,洪彦若. 表面包覆Al(OH)3改性石墨的研究[J]. 耐火材料, 2002, 36(5): 266-267 |
| 作者姓名： | 王周福 庞业华 孙加林 汪厚植 洪彦若 |
| 作者单位： | 1. 武汉科技大学材料与冶金学院,武汉,430081北京科技大学 2. 武汉科技大学材料与冶金学院,武汉,430081 3. 北京科技大学 |
| 摘 要： | 采用异相成核法在天然鳞片石墨水悬浮液中 ,使硫酸铝水解 ,在石墨表面包覆一层Al(OH) 3对石墨进行表面改性处理。介绍了包覆条件对石墨表面改性的影响 ,对改性后的石墨进行了形貌观察、接触角测定、差热 -热重分析。研究结果表明 :在适当的条件下 ,可在石墨表面形成Al(OH) 3包覆层 ,pH值为 4 .0时 ,包覆效果最好 ;包覆后石墨的抗氧化性及对水的润湿性均有所提高 |
| 关 键 词： | 石墨 表面包覆 改性 Al(OH)3 异相成核法 |
| 修稿时间： | 2001-12-26 |
Study on surface modification of graphite by coating Al(OH)3 |
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| Wang Zhoufu,Pang Yehua,Sun Jialin,et al Materials and Metallurgy Institute,Wuhan University of Science and Technology,Wuhan ,China. Study on surface modification of graphite by coating Al(OH)3[J]. Refractories, 2002, 36(5): 266-267 | |
| Authors: | Wang Zhoufu Pang Yehua Sun Jialin et al Materials Metallurgy Institute Wuhan University of Science Technology Wuhan China |
| Affiliation: | Wang Zhoufu,Pang Yehua,Sun Jialin,et al Materials and Metallurgy Institute,Wuhan University of Science and Technology,Wuhan 430081,China |
| Abstract: | Graphite particles were coated with Al(OH) 3 by heterogeneous nucleation process in graphite aqueous slurries via hydrolysis of aluminum sulphate.The effects of preparing conditions on surface modification of graphite were introduced.The morphology observation,contact angle determination and TG-DTA analysis were carried out.The results demonstrate that graphite particles were coated uniformly with Al(OH) 3 under proper preparing conditions,and the best coating was got when pH value is 4.0.The water wettability and oxidation resistance of the coated graphite are improved. |
| Keywords: | Graphite Surface coating Modification Al(OH) 3 Heterogeneous nucleation process |
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