中文摘要：

以单宁酸（TA）和没食子酸（GA）为模型悬浮剂，探讨悬浮剂分子大小、空间结构及憎水性等对CNTs悬浮的影响.结果表明，在低吸附量下，TA具有较强的悬浮CNTs的能力，而高吸附量下，GA悬浮CNTs能力更强.含氧量高的CNTs表现出更好的悬浮性能.尽管悬浮剂的吸附量影响了CNTs的悬浮，但悬浮剂的分子结构、空间构象及化学性质等可能才是控制CNTs的悬浮的主要因素，同时，CNTs本身的化学性质也对悬浮起着重要作用.

英文摘要：

In this study,tannic acid（TA） and gallic acid （GA） were used as model chemicals for CNTs suspension to investigate the effect of molecular morphology and properties on CNTs suspension. At low adsorption amounts, the higher suspension of CNTs by TA than GA was observed, while this phenomenon was opposite for GA at high adsorption amounts. Additionally, CNTs with higher O-contents showed the better suspension. This study emphasizes that the dispersion of CNTs by organic matter is not only controlled by the apparent adsorption of organic matter but also the molecular morphology and chemical properties of organic matter. Besides, chemical properties of CNTs are very important for the suspension.