Dopamine polymerization-induced surface colouration of various materials
Dopamine polymerization-induced surface colouration of various materials
复制标题
多巴胺聚合引起的各种材料的表面着色
DOI：
10.1039/c4ra00098f
复制
发表时间：
2014-01-01
期刊：
影响因子：
3.9
通讯作者：
Xin, John H.
中科院分区：
文献类型：
--
作者：
He, Liang;So, Vicky Lai Lai;Xin, John H.
生物灵感来自黑色素和海洋贻贝的粘合剂，开发了一种用于各种材料表面着色的新方法。使用多巴胺聚合形成粘合剂涂层，通过简单的浸渍涂层程序，很容易实现各种材料的表面着色，包括金属，陶瓷，聚合物甚至纺织织物（耐着色）。由于多巴胺在氧化过程中与氨基酸和杂环组分等亲核试剂的反应性，染色材料的颜色外观可以以可控的方式调整。市售的着色剂也可以在这个过程中使用，以丰富色域。分别用x射线光电子能谱、扫描电镜和水接触角测量研究了染色表面的表面组成、形貌和润湿性。得到的结果表明，材料表面着色成功，与空白样品相比，表面性能发生了明显的变化。对于这种染色方法，较少的能源消耗和染色助剂，表明这是一种环保的方法。此外，它是传统着色技术的一个有希望的替代方案，特别是对于那些耐着色的材料。
Bio-inspired by melanins and adhesive of marine mussels, a novel method was developed for colouration of various material surfaces. Using dopamine polymerization to form an adhesive coating, the surface colouration of various materials was easily achieved, including metal, ceramic, polymers and even textile fabrics (resistant to colouration) through a simple dip-coating procedure. The colour appearance of the dyed materials could be tuned in a controllable way due to the reactivity of dopamine with nucleophiles such as amino acids and heterocycle components during its oxidization step. Commercially available colorants could also be used in this procedure to enrich the colour gamut. The surface compositions, morphology and wettability of the dyed surfaces were studied by X-ray photoelectron spectroscopy, scanning electron microscopy and water contact angle measurement, respectively. The obtained results showed that the material surfaces were successfully coloured, which was verified by the obvious changes in surface properties compared to the blank samples. For this colouration method, less energy consumption and dyeing auxiliaries were needed, indicating that it is an environmentally friendly approach. Moreover, it is a promising alternative to the traditional colouration techniques, especially for those materials, which are resistant to colouration.