Enhanced Adhesion of Carbon Nanotubes by Dopamine Modification
Enhanced Adhesion of Carbon Nanotubes by Dopamine Modification
复制标题
多巴胺修饰增强碳纳米管的附着力
DOI：
10.1021/acs.langmuir.9b00192
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发表时间：
2019-04-02
期刊：
影响因子：
3.9
通讯作者：
Xu, Quan
中科院分区：
文献类型：
--
作者：
Li, Weijun;Li, Yang;Xu, Quan
根据壁虎垂直排列碳纳米管（VA-CNT）具有超强附着力的事实，利用多巴胺对这种传统仿生材料进行改性。采用原子力显微镜测试复合材料在不同环境条件下的粘附性能。改性VA-CNTs的附着力在逐渐加热过程中没有表现出明显的波动；然而，当环境湿度增加时，材料的附着力会提高。此外，改性碳纳米管在性能测试中表现出比原始碳纳米管更强的附着力。多巴胺聚合物与碳纳米管具有良好的结合，这就是上述优异性能的原因。总体而言，该改性方法简单、方便、高效、环保，具有广阔的应用前景。改性碳纳米管有望用于恶劣环境下的超粘附性，以及微电子领域。
According to the fact that gecko-inspired vertically aligned carbon nanotubes (VA-CNTs) exhibit ultrastrong adhesion, dopamine is utilized to make a modification to this traditional biomimetic material. The composite material is tested for adhesion performance under different environmental conditions by an atomic force microscope. The adhesion force of the modified VA-CNTs does not show obvious fluctuation during the gradual heating process; however, the material gains improved adhesion when increasing the ambient humidity. In addition, the modified CNTs show a stronger adhesion force than the original CNTs in their performance tests. The dopamine polymer has a good combination with CNTs, which is responsible for the aforementioned excellent performance. Overall, this modification method is simple, convenient, efficient, and environmentally friendly, which all indicates a promising future in its application. The modified CNTs are expected to be used for super-adhesion in harsh environments, as well as in the field of microelectronics.