| Surface modification of nanodiamond in aqueous medium |
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| 作者姓名： | 许向阳 朱永伟 王柏春 沈湘黔 |
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| 作者单位： | Research and Development Center，Research and Development Center，Research and Development Center，Research and Development Center Changsha Research Institute of Mining and Metallurgy，Changsha 410012，China，Changsha Research Institute of Mining and Metallurgy，Changsha 410012，China，Changsha Research Institute of Mining and Metallurgy，Changsha 410012，China，Changsha Research Institute of Mining and Metallurgy，Changsha 410012，China |
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| 摘 要： | 1 INTRODUCTIONTheresearchandpracticeofnanodiamond (dia mondofnano scale ,insomearticlesultrafinedia mond (UFD )orultradisperseddiamond (UDD )iscalled)synthesishasstartedbothintheUnitedStatesandtheformerUSSRinearlier 1980s1,2 ] .Afterthat,reportsabouttheresearchandsynthesisofthisnano scalematerialpresentthemselvescontinuously .TheproductsofthiskindcomeforthinJapan ,Ger many ,GreatBritainandFranceaswell3,4 ] .Scien tistsinlandhavealsoshowntheirinterestandinten sivestudieshavealsob…
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Surface modification of nanodiamond in aqueous medium |
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| XU Xiang-yang ZHU Yong-wei,WANG Bai-chun,SHEN Xiang-qian.Surface modification of nanodiamond in aqueous medium[J].Transactions of Nonferrous Metals Society of China,2003,13(6). |
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| Authors: | XU Xiang-yang ZHU Yong-wei WANG Bai-chun SHEN Xiang-qian |
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| Abstract: | The methods of chemical-mechanical treatments(CMT)were utilized for surface modification of nanodiamond in aqueous medium,and a considerably stable suspension system was thus obtained.The size of all the particles in the provided system was less than 100 nm with a narrow distribution and excellent stability,and no obvious change of particle crystal structure after the treatments was observed.The mechanism of the treatments was also discussed.The results show that,because of mechanical treatment effect,addition of ionic surfactants and inorganic regulators,the ζ-potential of nanodiamond shifts upwards during the treatments,and the composition of surface functional groups changes.Carboxyl and hydroxyl groups are intensified after the surface modification,which may contribute to the improvement of dispersion and stability.Meanwhile,the addition of non-ionic polymer can also benefit the suspension stability. |
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| Keywords: | nanodiamond surface modification aqueous medium CMT |
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